Multi-field cooperative enhancement integrated digestion method and system

Abstract

The invention discloses a multi-field cooperative enhancement integrated digestion method and a multi-field cooperative enhancement integrated digestion system. The multi-field synergistically enhanced integrated digestion method comprises the following steps: applying an electric field to the electric digestion module, lightening the light-emitting module, and exciting the photo-thermal module; injecting a water sample to be detected and acid liquor into the reaction chamber, and exciting the piezomagnetic module; the electric digestion module electrolyzes the water sample to be detected to generate hydrogen peroxide, and the hydrogen peroxide is enriched in the photo-thermal module for Fenton-like oxidation; the photo-thermal module generates heat, thermal digestion is carried out, and Fenton-like oxidation is promoted; the piezomagnetic module generates a magnetic field to vibrate the to-be-detected water sample, and Fenton-like oxidation is promoted. According to the embodiment of the invention, the micro-fluidic water sample digestion chip is combined with multiple enhancement effects, and multiple reaction path cross digestion methods of photocatalysis, photo-thermal catalysis and photoelectric-assisted Fenton-like oxidation, thermal digestion and magnetic micro-fluidic reaction digestion are simultaneously or respectively used. The system is small in size and convenient to carry, the digestion time can be shortened, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated digestion chips, and in particular to an integrated digestion method and system with multi-field synergistic enhancement. Background Art

[0002] Microfluidic chips are emerging research technologies for manipulating liquids at the micrometer or even nanometer scale. Various functional microfluidic channels are integrated into the chip, and these channels form different functional unit areas, forming a small laboratory with clear division of labor.

[0003] Microfluidic chip technology can realize the entire analysis process and target analysis in a very small device (usually a few square centimeters). The test samples in the field of water quality testing change quickly, which puts higher requirements on the portability of the testing equipment. In recent years, researchers have introduced microfluidic chip technology into water quality testing. However, in the process of water sample digestion, the error in test data caused by incomplete digestion has always been a difficulty in the application of microfluidic chips in the field of water quality testing. For example, in the process of detecting important water quality indicators such as total phosphorus, total nitrogen, and COD, microfluidics often causes the final test results to have a large error with the true value due to incomplete and incomplete digestion process.

[0004] Therefore, designing a digester that can more completely and quickly digest water quality indicators is an urgent need in the field of microfluidic chip water quality testing. Summary of the invention

[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose an integrated digestion method and system with multi-field synergistic enhancement to solve the technical problems in the prior art of water quality testing that the water sample digestion time is too long, the required sample amount is too high, and the sample digestion is incomplete.

[0006] In order to achieve the above technical objectives, this application adopts the following technical solutions: In a first aspect, the present application also provides an integrated digestion method with multi-field synergistic enhancement, comprising the following steps: Applying an electric field to the electric digestion module, lighting up the light-emitting module, and stimulating the photothermal module; The water sample and acid solution to be tested are injected into the reaction chamber to excite the piezomagnetic module; The electric digestion module electrolyzes the water sample to be tested to produce hydrogen peroxide, and the hydrogen peroxide is enriched in the photothermal module to perform Fenton-like oxidation; The photothermal module generates heat to perform thermal digestion and promote Fenton-like oxidation; The piezo-magnetic module generates a magnetic field to vibrate the water sample to be tested, thereby promoting Fenton-like oxidation.

[0007] In some embodiments of the present application, the digestion method further comprises: placing iron-based amorphous microspheres into the reaction chamber; Under the action of the magnetic field of the piezomagnetic module, the iron-based amorphous microspheres vibrate in the water sample to be tested.

[0008] In a second aspect, the present application provides an integrated digestion system with multi-field synergistic enhancement, which is applied to the integrated digestion method with multi-field synergistic enhancement as described in any one of the embodiments in the first aspect, including a polymer polymerization module, a light emitting module, an electric digestion module, a magnetostrictive module, and a photothermal module: A polymer polymerization module, wherein the polymer polymerization module has a hollow cavity to form a reaction chamber; A light emitting module, the light emitting module is located above the reaction chamber; An electric digestion module, the electric digestion module comprising a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are respectively located above and below the reaction chamber; A piezomagnetic module, the piezomagnetic module is located below the reaction chamber; and A photothermal module covers the inner side of the bottom surface of the reaction chamber.

[0009] In some embodiments of the present application, the polymer module includes a polydimethylsiloxane layer, and the polydimethylsiloxane layer is disposed on the same layer as the reaction chamber.

[0010] In some embodiments of the present application, an inlet and an outlet are respectively provided at both ends of the reaction chamber, the inlet is connected to the water sample input channel and the acid liquid input channel, and the outlet is connected to the water sample output channel.

[0011] In some embodiments of the present application, the electrical digestion module further includes a power supply, a negative electrode and a positive electrode of the power supply are electrically connected to the first conductive layer and the second conductive layer respectively, and the materials of the first conductive layer and the second conductive layer both include a conductive glass substrate.

[0012] In some embodiments of the present application, the light-emitting module includes a thin-film light source, and the thin-film light source is electrically connected to the first conductive layer and the second conductive layer respectively.

[0013] In some embodiments of the present application, the photothermal module includes a photothermal conversion material, a Fenton-like catalyst and a coating carrier, the coating carrier is coated on the inner side of the bottom surface of the reaction chamber, and the photothermal conversion material and the Fenton-like material are evenly distributed in the coating carrier.

[0014] In some embodiments of the present application, the piezomagnetic module includes a piezomagnetic material film, the piezomagnetic material film supports the polymer module, and iron-based amorphous microspheres are arranged in the reaction chamber.

[0015] In some embodiments of the present application, a cover glass is further included, wherein the cover glass, the light-emitting module, and the first conductive layer are sequentially stacked above the reaction chamber from top to bottom, the piezomagnetic module and the second conductive layer are sequentially stacked below the reaction chamber, and the photothermal module covers the upper surface of the piezomagnetic module.

[0016] Compared with the prior art, the technical solution provided by this application has the following beneficial technical effects: The embodiment of the present application designs an integrated digestion system and method with multi-field synergistic enhancement, which produces a combination of a microfluidic water sample digestion chip and a variety of enhancement effects, forming a new method for rapid and complete digestion of water samples. A cross-digestion method using multiple reaction paths of photocatalysis, photothermal catalysis, and photoelectric-assisted Fenton-like oxidation, thermal digestion, and magneto-microfluidic reaction digestion simultaneously or separately. Compared with the existing microfluidic digestion technology, the digestion device and its method can simultaneously utilize more digestion reaction paths and have a synergistic effect, and can achieve rapid processing of more substances in the field of microfluidic water quality detection, shortening the water sample digestion time from the traditional hours to within a few seconds. The system is small and easy to carry, can shorten the digestion time, ensure the complete digestion of water samples, improve the accuracy of detection, and facilitate researchers to detect the content of various water sample indicators in water bodies in real time. At the same time, it is convenient to change different enhancement effects according to needs, and it has a wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution in this application, the following is a brief introduction to the drawings required for use in the embodiments: Figure 1 It is a flow chart of an integrated digestion method with multi-field synergistic enhancement provided in an embodiment of the present application; Figure 2 It is a structural schematic diagram of an integrated digestion system with multi-field synergistic enhancement provided in an embodiment of the present application; Figure 3 It is a top view schematic diagram of an integrated digestion system with multi-field synergistic enhancement provided in an embodiment of the present application.

[0018] Reference numerals: 1-polymer polymerization module, 2-light emitting module, 3-first conductive layer, 4-second conductive layer, 5-piezomagnetic module, 6-photothermal module, 7-cover glass; 11-reaction chamber, 12-water sample input channel, 13-acid input channel, 14-water sample output channel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] Those skilled in the art will appreciate that in this specification, the wording "including" is an open-ended expression, which means that the described features exist but does not exclude other features. The directional words "up", "down", "left", "right", etc. are exemplary directions based on the drawings. Features defined as "first" and "second" implicitly include one or more of the features. Singular expressions can also be used in the plural. "Multiple" means two or more. The terms "installed", "connected", and "connected" can be fixed connections, detachable connections, or integrated connections; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. In addition, "connected" can include wireless connections.

[0021] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose an integrated digestion method and system with multi-field synergistic enhancement to solve the technical problems in the prior art of water quality testing that the water sample digestion time is too long, the required sample amount is too high, and the sample digestion is incomplete.

[0022] In order to achieve the above technical objectives, this application adopts the following technical solutions: In the first aspect, the present application also provides an integrated digestion method with multi-field synergistic enhancement, such as Figure 1 As shown, Figure 1 It is a flow chart of an integrated digestion method with multi-field synergistic enhancement provided in an embodiment of the present application.

[0023] A multi-field synergistically enhanced integrated digestion method comprises the following steps: S1, applying an electric field to the electric digestion module, lighting up the light-emitting module 2, and stimulating the photothermal module 6; S2, injecting the water sample and acid solution to be tested into the reaction chamber 11, and exciting the piezomagnetic module 5; S3, the electric digestion module electrolyzes the water sample to be tested to produce hydrogen peroxide, and the hydrogen peroxide is enriched in the photothermal module 6 for Fenton-like oxidation; S4, the photothermal module 6 generates heat to perform thermal digestion and promote Fenton-like oxidation; S5, the piezomagnetic module 5 generates a magnetic field to vibrate the water sample to be tested, thereby promoting Fenton-like oxidation.

[0024] In some embodiments of the present application, the digestion method further comprises: Putting iron-based amorphous microspheres into the reaction chamber 11; Under the effect of the magnetic field of the piezomagnetic module 5 , the iron-based amorphous microspheres vibrate in the water sample to be tested.

[0025] In this embodiment, the following steps are included: (1) A DC electric field is applied to the upper and lower conductive glass layers, and the light source emits light; (2) injecting the water sample and the acid solution to be tested from the input port and mixing them in the microchannel to excite the piezomagnetic module 5; (3) The mixed liquid enters the reaction chamber 11, and the Fenton-like oxidation system, the magneto-microfluidic reaction system, the electrochemical digestion system, and the thermal digestion system simultaneously perform water digestion. During the reaction process, the electrochemical digestion will participate in the construction of the Fenton-like reaction system. At the same time, under the action of the electric field, the hydrogen peroxide is enriched on one side of the catalytic material to promote the Fenton-like oxidation efficiency. The light generated by the thin-film light source will also stimulate photothermal catalysis. The heat generated will promote the Fenton-like oxidation effect while performing thermal digestion, and will also increase the pressure in the reaction chamber 11, thereby enhancing the magneto-microfluidic reaction. The iron-based amorphous microspheres can be used as catalysts for the Fenton-like reaction, and the micro-vibration generated by the magneto-microfluidic reaction will enhance the Fenton-like oxidation effect. This allows the water sample to be completely digested to the greatest extent; (4) After digestion, the water sample flows out from the output port through the output channel.

[0026] In the second aspect, the present application provides an integrated digestion system with multi-field synergistic enhancement, such as Figure 2 and Figure 3 As shown, Figure 2 It is a structural schematic diagram of an integrated digestion system with multi-field synergistic enhancement provided in an embodiment of the present application; Figure 3 It is a top view schematic diagram of an integrated digestion system with multi-field synergistic enhancement provided in an embodiment of the present application.

[0027] A multi-field synergistically enhanced integrated digestion system, applied to the multi-field synergistically enhanced integrated digestion method as described in any one of the embodiments of the first aspect, comprises a polymer polymerization module 1, a light emitting module 2, an electric digestion module, a piezomagnetic module 5 and a photothermal module 6: A polymer polymerization module 1, wherein the polymer polymerization module 1 has a hollow cavity to form a reaction chamber 11; A light emitting module 2, wherein the light emitting module 2 is located above the reaction chamber 11; An electric digestion module, the electric digestion module comprising a first conductive layer 3 and a second conductive layer 4, wherein the first conductive layer 3 and the second conductive layer 4 are respectively located above and below the reaction chamber 11; A piezomagnetic module 5, wherein the piezomagnetic module 5 is located below the reaction chamber 11; and The photothermal module 6 covers the inner side of the bottom surface of the reaction chamber 11 .

[0028] The embodiment of the present application designs an integrated digestion system and method with multi-field synergistic enhancement, which produces a combination of a microfluidic water sample digestion chip and a variety of enhancement effects, forming a new method for rapid and complete digestion of water samples. A cross-digestion method using multiple reaction paths of photocatalysis, photothermal catalysis, and photoelectric-assisted Fenton-like oxidation, thermal digestion, and magneto-microfluidic reaction digestion simultaneously or separately. Compared with the existing microfluidic digestion technology, the digestion device and its method can simultaneously utilize more digestion reaction paths and have a synergistic effect, and can achieve rapid processing of more substances in the field of microfluidic water quality detection, shortening the water sample digestion time from the traditional hours to within a few seconds. The system is small and easy to carry, can shorten the digestion time, ensure the complete digestion of water samples, improve the accuracy of detection, and facilitate researchers to detect the content of various water sample indicators in water bodies in real time. At the same time, it is convenient to change different enhancement effects according to needs, and it has a wide adaptability.

[0029] This embodiment is based on Fenton-like oxidation technology, photothermal conversion technology, electrochemical digestion technology, magneto-microfluidic reaction technology and microfluidic technology. To solve the problem of difficult water sample digestion in existing microfluidic water quality detection technology. It includes a microfluidic chip body and a digestion reaction chamber 11. An electric field can be applied to the reaction chamber 11 to perform electrochemical digestion and simultaneously excite the light source in the device.

[0030] The reaction chamber 11 is covered with a photothermal conversion-Fenton-like material coating, which can form a Fenton-like reaction system with the hydrogen peroxide produced by electrolysis to oxidatively digest the water sample; heat can be generated through the photothermal conversion mechanism to stimulate photocatalysis and photothermal catalytic digestion. There are iron-based amorphous microspheres in the reaction chamber 11, and the water flow pressure in the reaction chamber 11 can excite the piezomagnetic ceramic film to generate a magnetic field to drive the micro-vibration of the microspheres, thereby enhancing the oxidation digestion effect. The application of an electric field can also promote Fenton-like reactions and thermal digestion, and can realize arbitrary combinations and cross-digestion of multiple reaction paths in the microfluidic chip. The chip is miniaturized in design, which is convenient for integration with micro sensors to form a portable water quality detection device.

[0031] In some embodiments of the present application, the polymer module 1 includes a polydimethylsiloxane layer, and the polydimethylsiloxane layer is disposed on the same layer as the reaction chamber 11 .

[0032] In some embodiments of the present application, an inlet and an outlet are respectively provided at both ends of the reaction chamber 11 , the inlet is connected to the water sample input channel 12 and the acid liquid input channel 13 , and the outlet is connected to the water sample output channel 14 .

[0033] In this embodiment, the digestion reaction chamber 11 is disposed on the chip body and is used to digest water quality indicators (such as total phosphorus, total nitrogen, chemical oxygen demand, etc.) in the sample water.

[0034] The digestion reaction chamber 11 is composed of a microchannel for inputting and outputting water samples and acid solutions and a rectangular reaction chamber 11. Optionally, the length, width and height of the reaction chamber 11 are 50 mm, 15 mm and 50 μm respectively, and the total volume is 375 μL. The inlet end of the reaction chamber 11 is connected to the entrance of the microchannel for inputting a mixed solution of water samples and acid solutions, and for adjusting the acidity of the water samples to support a Fenton-like reaction system. The outlet end is connected to the outlet of the microchannel for discharging the digested water sample. The height of the channel is 50 μm. It is closely combined with other membrane layers.

[0035] In some embodiments of the present application, the electrical digestion module also includes a power supply, the negative electrode and the positive electrode of the power supply are electrically connected to the first conductive layer 3 and the second conductive layer 4 respectively, and the materials of the first conductive layer 3 and the second conductive layer 4 both include a conductive glass substrate.

[0036] In this embodiment, the main body of the microfluidic chip is bonded by polydimethylsiloxane (PDMS) and a conductive glass substrate. The length and width of the conductive glass substrate are 3 cm and 2.5 cm respectively, and it is tightly combined with the PDMS by ion bombardment to avoid the generation of bubbles that interfere with the experiment and accurate measurement.

[0037] The chip designed according to the reaction chamber is made into a mask template, and SU8-50 negative photoresist is applied to the surface for uniform coating. Then it is baked, exposed, and baked again. After completion, the photoresist outside the microstructure is removed and the film is hardened to make the structure more solid.

[0038] Mix PDMS and curing agent in proportion and stir thoroughly until there are uniform small bubbles in the mixture. Pour a certain amount of uniformly mixed PDMS on the prepared silicon wafer template, and place the flow cell mold on the corresponding position of the silicon wafer before pouring. Heat and evacuate in an oven. Remove the PDMS with microstructures after curing, and punch holes at the entrances of the test liquid and acid in the microchannel. Plate a layer of photothermal conversion-Fenton-like material on the pre-cleaned conductive glass (Indium Tin Oxide, ITO).

[0039] Put PDMS and ITO conductive glass substrate, piezomagnetic material film and quartz glass into a plasma cleaner for cleaning. After cleaning, bond the parts and align the photothermal conversion-Fenton-like material pre-plated on the surface of the piezomagnetic material film with the reaction chamber 11 of PDMS.

[0040] In some embodiments of the present application, the light emitting module 2 includes a thin film light source, and the thin film light source is electrically connected to the first conductive layer 3 and the second conductive layer 4 respectively.

[0041] In this embodiment, the upper conductive glass substrate is connected to the negative electrode of the external power supply, and the lower conductive glass substrate is connected to the positive electrode of the external power supply. It is used to apply an electric field to the water sample to be digested for electrochemical digestion. Hydrogen peroxide is produced in the positive electrode region by electrolyzing water, which is equivalent to adding hydrogen peroxide to the mixed solution of the water sample and the acid solution and enriching it near the photothermal conversion-Fenton-like material coating to construct a Fenton-like reaction system. A thin film light source is integrated directly above the reaction chamber 11, and its positive and negative electrodes are respectively connected to the lower and upper conductive glasses, and are powered by the same power supply, which is used to apply light to the photothermal conversion-Fenton-like material coating, and is used to generate heat in the reactor using the photothermal conversion mechanism, and thermally digest the mixed solution of the water sample and the acid solution while promoting the Fenton-like reaction.

[0042] A thin film light source is also bonded to the outside of the upper conductive glass, powered by direct current, and the positive and negative poles of the power supply are respectively connected to the lower and upper conductive glasses through conductive silver paste. Insulating quartz glass is bonded to the outside of the light source and the outside of the lower conductive glass.

[0043] In some embodiments of the present application, the photothermal module 6 includes a photothermal conversion material, a Fenton-like catalyst and a coating carrier, the coating carrier is coated on the inner side of the bottom surface of the reaction chamber 11, and the photothermal conversion material and the Fenton-like material are evenly distributed in the coating carrier.

[0044] In this embodiment, the glass substrate area directly below the reaction chamber 11 is covered with a photothermal-Fenton-like material coating with a thickness of about 500 nm, which is the same as the plane size of the reaction chamber 11, and is used for photothermal-Fenton-like synergistic digestion of water samples. Iron-based amorphous microspheres are distributed on the above coating.

[0045] It is understandable that the present embodiment does not limit the order of the film layers above and below the reaction chamber 11 , and the photothermal module 6 can be disposed on any film layer constituting the bottom surface of the reaction chamber 11 .

[0046] In some embodiments of the present application, the piezomagnetic module 5 includes a piezomagnetic material film, the piezomagnetic material film supports the polymer polymerization module 1 , and the reaction chamber 11 is provided with iron-based amorphous microspheres.

[0047] In this embodiment, a piezomagnetic material film is provided below the reaction chamber 11, and the water pressure in the reaction chamber 11 is used to generate a magnetic field to make the iron-based amorphous microspheres preset in the reaction chamber 11 jump up and down to perform a magneto-microfluidic reaction and digest the mixed solution.

[0048] In some embodiments of the present application, a cover glass 7 is further included. The cover glass 7, the light-emitting module 2, and the first conductive layer 3 are stacked in sequence above the reaction chamber 11 from top to bottom, the piezomagnetic module 5 and the second conductive layer 4 are stacked in sequence below the reaction chamber 11, and the photothermal module 6 covers the upper surface of the piezomagnetic module 5.

[0049] In this embodiment, the texture of quartz glass is harder than that of PDMS, which can not only play a protective role, but also enhance the pressure in the channel and make it easier to excite the magnetic field.

[0050] Compared with the prior art, the technical solution provided by this application has the following beneficial technical effects: The embodiment of the present application designs an integrated digestion system and method with multi-field synergistic enhancement, which produces a combination of a microfluidic water sample digestion chip and a variety of enhancement effects, forming a new method for rapid and complete digestion of water samples. A cross-digestion method using multiple reaction paths of photocatalysis, photothermal catalysis, and photoelectric-assisted Fenton-like oxidation, thermal digestion, and magneto-microfluidic reaction digestion simultaneously or separately. Compared with the existing microfluidic digestion technology, the digestion device and its method can simultaneously utilize more digestion reaction paths and have a synergistic effect, and can achieve rapid processing of more substances in the field of microfluidic water quality detection, shortening the water sample digestion time from the traditional hours to within a few seconds. The system is small and easy to carry, can shorten the digestion time, ensure the complete digestion of water samples, improve the accuracy of detection, and facilitate researchers to detect the content of various water sample indicators in water bodies in real time. At the same time, it is convenient to change different enhancement effects according to needs, and it has a wide adaptability.

[0051] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, modified, rearranged, decomposed, combined, or deleted.

[0052] The specific implementation methods of the present application described above do not constitute a limitation on the protection scope of the present application. Any other corresponding changes and modifications made according to the technical concept of the present application should be included in the protection scope of the claims of the present application.

Claims

1. An integrated digestion method with multi-field synergistic enhancement, characterized in that: The following steps are involved: Applying an electric field to the electric digestion module, lighting up the light-emitting module, and stimulating the photothermal module; The water sample and acid solution to be tested are injected into the reaction chamber to excite the piezomagnetic module; The electric digestion module electrolyzes the water sample to be tested to produce hydrogen peroxide, and the hydrogen peroxide is enriched in the photothermal module to perform Fenton-like oxidation; The photothermal module generates heat to perform thermal digestion and promote Fenton-like oxidation; The piezo-magnetic module generates a magnetic field to vibrate the water sample to be tested, thereby promoting Fenton-like oxidation.

2. The integrated digestion method with multi-field synergistic enhancement according to claim 1, characterized in that: The digestion method also includes: placing iron-based amorphous microspheres into the reaction chamber; Under the action of the magnetic field of the piezomagnetic module, the iron-based amorphous microspheres vibrate in the water sample to be tested.

3. An integrated digestion system with multi-field synergistic enhancement, characterized in that: The integrated digestion method for multi-field synergistic enhancement as claimed in any one of claims 1 to 2 comprises: A polymer polymerization module, wherein the polymer polymerization module has a hollow cavity to form a reaction chamber; A light emitting module, the light emitting module is located above the reaction chamber; An electric digestion module, the electric digestion module comprising a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are respectively located above and below the reaction chamber; A piezomagnetic module, the piezomagnetic module is located below the reaction chamber; and A photothermal module covers the inner side of the bottom surface of the reaction chamber.

4. The integrated digestion system with multi-field synergistic enhancement according to claim 3, characterized in that: The polymer module comprises a polydimethylsiloxane layer, and the polydimethylsiloxane layer is arranged on the same layer as the reaction chamber.

5. The integrated digestion system with multi-field synergistic enhancement according to claim 3, characterized in that: An inlet and an outlet are respectively arranged at two ends of the reaction chamber, the inlet is communicated with the water sample input channel and the acid solution input channel, and the outlet is communicated with the water sample output channel.

6. The integrated digestion system with multi-field synergistic enhancement according to claim 3, characterized in that: The electrical digestion module further includes a power supply, a negative electrode and a positive electrode of the power supply are electrically connected to the first conductive layer and the second conductive layer respectively, and the materials of the first conductive layer and the second conductive layer both include a conductive glass substrate.

7. The integrated digestion system with multi-field synergistic enhancement according to claim 6, characterized in that: The light emitting module includes a thin film light source, and the thin film light source is electrically connected to the first conductive layer and the second conductive layer respectively.

8. The multi-field synergistically enhanced integrated digestion system according to claim 3, characterized in that: The photothermal module includes a photothermal conversion material, a Fenton-like catalyst and a coating carrier, wherein the coating carrier is coated on the inner side of the bottom surface of the reaction chamber, and the photothermal conversion material and the Fenton-like material are evenly distributed in the coating carrier.

9. The integrated digestion system with multi-field synergistic enhancement according to claim 3, characterized in that: The piezomagnetic module comprises a piezomagnetic material film, the piezomagnetic material film carries the polymer polymerization module, and iron-based amorphous microspheres are arranged in the reaction chamber.

10. The integrated digestion system with multi-field synergistic enhancement according to claim 3, characterized in that: It also includes a cover glass, wherein the cover glass, the light-emitting module, and the first conductive layer are stacked in sequence above the reaction chamber from top to bottom, the piezomagnetic module and the second conductive layer are stacked in sequence below the reaction chamber, and the photothermal module covers the upper surface of the piezomagnetic module.

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