Compatible integrated driving power generation device based on environmental moisture adsorption and light collection and preparation method and application thereof

Abstract

The invention discloses a compatible integrated driving power generation device based on environmental moisture adsorption and light collection and a preparation method and application thereof, and relates to the technical field of energy conversion. The polymer functional layer module is used for adsorbing water molecule dissociation hydrogen-producing ions and generating holes through light excitation to oxidize water molecule hydrogen-releasing ions; the electrode module is used for providing asymmetric chemical potential to generate charge separation; and the substrate module is used for providing a polymer functional layer and an electrode for placing and assembling a support body. By adopting the device and the method, the collection of various environmental energy can be realized only through simple lamination assembly, the device has the advantages of efficient water photovoltaic power generation and simple system, and the difficulties of complex system, high cost, low output efficiency and the like in the traditional collection and conversion of various energy are solved.

Description

Technical Field

[0001] The present invention relates to the field of energy conversion technology, and in particular to a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, and a preparation method and application thereof. Background Art

[0002] Environmental energy conversion technology is expected to cope with the serious energy crisis and is a promising solution to slow the growth of fossil fuel use. The recently emerged hydropower generation technology can collect electricity from the ubiquitous gaseous water in the atmosphere. It has the advantages of being green and clean, so it has attracted widespread attention. However, the output power of unit devices is still unsatisfactory, and most of them still remain in the order of tens of nanowatts to a few microwatts. In addition, when considering the environment, a single energy conversion process has limitations and low adaptability. It is a challenge to flexibly collect a variety of clean energy from the environment for green energy conversion to generate electricity. In the existing multi-energy harvesting system, the current solutions mainly focus on the simple layering and combination of various energy conversion layers, resulting in a multi-layer structure of the device that is difficult to integrate, which limits flexible energy collection and application scenarios.

[0003] In summary, how to propose a multi-energy harvesting device and its preparation method, which can efficiently perform humidity power generation and collect other types of energy to further enhance output, and has a simple and flexible structure has become an important issue that needs to be urgently solved in the industry. Summary of the Invention

[0004] The purpose of the present invention is to provide a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, as well as its preparation method and application, to solve the above problems. The prepared compatible integrated drive power generation device has a simple structure, low cost, efficient humidity power generation, and can collect light and further enhance output capacity.

[0005] The present invention discloses a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, comprising the following modules:

[0006] The polymer functional layer module is used to adsorb water molecules to dissociate and generate hydrogen ions, and to generate holes through photoexcitation to oxidize water molecules and release hydrogen ions;

[0007] An electrode module for providing an asymmetric chemical potential to produce charge separation;

[0008] and a substrate module for providing a support for placing and assembling the polymer functional layer and the electrodes;

[0009] The polymer functional layer module includes a hygroscopic polymer material and a bismuth-based photocatalytic material;

[0010] The electrode module includes metal electrodes arranged at both ends of the polymer module;

[0011] The substrate material of the substrate module is any one of a flexible substrate and a rigid substrate.

[0012] The present invention also provides a method for preparing the above-mentioned compatible integrated drive power generation device based on environmental moisture adsorption and light collection, comprising the following steps:

[0013] S1. Cutting a metal sheet and polishing it with fine sandpaper to form a first metal electrode and a second metal electrode respectively, as an electrode module, wherein the metal sheet materials of the first metal electrode and the second metal electrode are different;

[0014] S2, mixing the hygroscopic polymer material with deionized water to obtain a hygroscopic dispersion P1;

[0015] S3, ultrasonically mixing the bismuth-based photocatalytic material with deionized water to obtain a light-responsive dispersion, then weighing the light-responsive dispersion and mixing it into the hygroscopic dispersion P1, heating and evaporating the mixture to obtain the polymer functional layer material P2;

[0016] S4. Placing the polymer functional layer material P2 on the substrate material to form a polymer functional layer module and a substrate module, and placing a first metal electrode and a second metal electrode at both ends of the upper surface of the polymer functional layer material P2, respectively, with a gap reserved between the first metal electrode and the second metal electrode for absorbing ambient water molecules or light excitation;

[0017] S5. Wires are configured for the first metal electrode and the second metal electrode respectively, and finally a compatible integrated driving power generation device based on environmental moisture adsorption and light collection is obtained.

[0018] Preferably, in step S1 , the material of the metal sheet includes but is not limited to copper, zinc, silver, gold and platinum.

[0019] Preferably, in step S2, the hygroscopic polymer material is a wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol; the mass ratio of the wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol mixed with deionized water is (0.5-2):(0.2-1):(0.1-0.3):1.

[0020] Preferably, in step S2, the hygroscopic polymer material is a wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol; the mass ratio of the wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol mixed with deionized water is 1:0.5:0.1:1.

[0021] Preferably, in step S3, the bismuth-based photocatalytic material includes but is not limited to BiOBr nanomaterials, BiOCl nanomaterials and BiWO4 nanomaterials;

[0022] In step S3, the concentration of the photoresponsive dispersion is 0.2 g / ml, the mass ratio of the photoresponsive dispersion to the hygroscopic dispersion P1 is (0.2-1):(1.8-4.3), the heating evaporation temperature is 45°C-60°C, the time is 4-8h, and the heating method is one of blower drying and vacuum drying oven.

[0023] Preferably, in step S3, the mass ratio of the photoresponsive dispersion liquid to the hygroscopic dispersion liquid P1 is 0.5:2.6.

[0024] Preferably, in step S4, the substrate material includes but is not limited to flexible polyethylene terephthalate or rigid glass; in step S4, the gap between the first metal electrode and the second metal electrode is 0.5 mm-16 mm.

[0025] Preferably, in step S5, the wires configured for the first metal electrode and the second metal electrode are both copper wires.

[0026] The compatible integrated drive power generation device based on environmental moisture adsorption and light collection provided by the present invention has a hydrovoltaic conversion function, can generate a higher output voltage and current, and can collect light energy to further improve the output capacity, and is applied to the fields of energy collection and conversion and flexible wearable sensing.

[0027] Therefore, the present invention adopts the above-mentioned compatible integrated drive power generation device based on environmental moisture adsorption and light collection, and its preparation method and application, which have the following beneficial effects:

[0028] (1) The compatible integrated driving power generation device obtained by the present invention can collect and convert a variety of energies through a polymer functional layer composed of a polyelectrolyte hygroscopic material and a Bi-based photocatalytic material. The hygroscopic material absorbs atmospheric moisture from the middle gap and releases positively charged hydrogen ions, which further interact with the metal electrode. Under the action of asymmetric chemical potential, it effectively separates the charges and generates voltage on both sides of the electrode or forms a current in the loop, which ensures efficient output capacity. In addition, the embedded Bi-based photocatalytic material can collect light to generate long-life holes, which can oxidize atmospheric water and release additional hydrogen ions inside the device, which ensures further enhancement of the output capacity.

[0029] (2) The main body of the compatible integrated driving and power generation device obtained in the present invention has good mechanical properties, is composed of a simple structure, and has broad application prospects in the fields of energy conversion and smart wearables.

[0030] (3) The compatible integrated drive power generation device of the present invention can generate an output voltage of 0.60mV-0.95V when the humidity changes. At a relative humidity of 75%, it provides an excellent open-circuit voltage of 0.77V and a significant short-circuit current of 18μA. After exposure to a light field for light collection, the output capacity of the unit can be enhanced to 0.84V and 28μA under the same relative humidity conditions. The performance can be further improved through simple series and parallel connections.

[0031] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a compatible integrated drive power generation device based on environmental moisture adsorption and light collection prepared in Example 1 of the present invention;

[0033] Figure 2 A physical picture of the compatible integrated driving and power generation device based on environmental moisture adsorption and light collection prepared in Example 1 of the present invention and a physical picture of the polymer functional layer;

[0034] Figure 3 This is a voltage test performance diagram of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection prepared in Example 1 of the present invention under different humidity conditions;

[0035] Figure 4 This is a voltage test performance diagram of the compatible integrated driving power generation device based on ambient moisture adsorption and light collection prepared in Example 1 of the present invention before and after light collection at a relative humidity of 75%;

[0036] Figure 5 This is a current test performance diagram of the compatible integrated driving power generation device based on ambient moisture adsorption and light collection prepared in Example 1 of the present invention before and after light collection at a relative humidity of 75%;

[0037] Reference numerals:

[0038] 1. A first metal electrode; 2. A second metal electrode; 3. A hygroscopic polymer material; 4. A Bi-based photocatalytic material; 5. A flexible polyethylene terephthalate substrate. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will refer to the accompanying drawings of the embodiments of the present invention. Figures 1 to 5 The technical solutions of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "surroundings", "horizontal", "longitudinal", "length", "thickness", "angle", "up", "down", "left", "right", etc., which indicate directions or positions, are limited to simplifying the description of the present invention, rather than specific positions or directions. The above terms are not limitations of the present invention.

[0041] The present invention discloses a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, comprising the following modules: a polymer functional layer module, an electrode module and a substrate module; the polymer functional layer module comprises a hygroscopic polymer material and a bismuth-based photocatalytic material; the electrode module comprises metal electrodes arranged at both ends of the polymer module; the substrate material of the substrate module is either a flexible substrate or a rigid substrate.

[0042] In this device, the electrode module provides an asymmetric chemical potential to generate charge separation. The functional groups on the hygroscopic polymer material in the polymer functional layer module interact with absorbed water molecules to dissociate into hydrogen ions, which then interact with the metal electrode. The Bi-based photocatalytic material, upon photoexcitation, generates long-lived holes that oxidize water molecules to release additional hydrogen ions, enhancing output performance. The substrate module provides a support for the placement and assembly of the polymer functional layer and electrodes.

[0043] The present invention also provides a method for preparing the above-mentioned compatible integrated drive power generation device based on environmental moisture adsorption and light collection, comprising the following steps:

[0044] S1. Cut the metal sheet and polish it with fine sandpaper to form a first metal electrode and a second metal electrode respectively. As an electrode module, the metal sheet materials of the first metal electrode and the second metal electrode are different.

[0045] S2. Mixing the hygroscopic polymer material with deionized water to obtain a hygroscopic dispersion P1.

[0046] S3. Ultrasonic mixing of the bismuth-based photocatalytic material and deionized water to obtain a light-responsive dispersion liquid, then weighing the light-responsive dispersion liquid and mixing it into the hygroscopic dispersion liquid P1, heating and evaporating the mixture to finally obtain the polymer functional layer material P2.

[0047] S4. Place the polymer functional layer material P2 on the substrate material to form a polymer functional layer module and a substrate module, and place a first metal electrode and a second metal electrode at both ends of the upper surface of the polymer functional layer material P2, respectively, and reserve a gap between the first metal electrode and the second metal electrode for absorbing environmental water molecules or light excitation.

[0048] S5. Wires are configured for the first metal electrode and the second metal electrode respectively, and finally a compatible integrated driving power generation device based on environmental moisture adsorption and light collection is obtained.

[0049] In step S1 , the material of the metal sheet includes but is not limited to copper, zinc, silver, gold, and platinum.

[0050] In step S2, the hygroscopic polymer material is a wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol; the mass ratio of the wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol mixed with deionized water is (0.5-2):(0.2-1):(0.1-0.3):1, and the effect is best when the ratio is 1:0.5:0.1:1.

[0051] In step S3, the bismuth-based photocatalytic material includes but is not limited to BiOBr nanomaterials, BiOCl nanomaterials and BiWO4 nanomaterials.

[0052] The concentration of the photoresponsive dispersion is 0.2 g / ml, and the mass ratio of the photoresponsive dispersion to the hygroscopic dispersion P1 is (0.2-1):(1.8-4.3). The best effect is achieved when the ratio is 0.5:2.6. The heating and evaporation temperature is 45°C-60°C, the time is 4-8 hours, and the heating method is one of air blower drying and vacuum drying oven drying.

[0053] In step S4, the substrate material includes but is not limited to flexible polyethylene terephthalate or rigid glass; in step S4, the gap between the first metal electrode and the second metal electrode is 0.5 mm-16 mm.

[0054] In step S5 , the wires configured for the first metal electrode and the second metal electrode are both copper wires.

[0055] The compatible integrated drive power generation device based on environmental moisture adsorption and light collection provided by the present invention has a hydrovoltaic conversion function, can generate a higher output voltage and current, and can collect light energy to further improve the output capacity, and is applied to the fields of energy collection and conversion and flexible wearable sensing.

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the various parts of the embodiments of the present invention described and shown in the drawings here can be configured and designed with various similar materials. The specific ratio of the metal electrode and the polymer functional layer material needs to be preferably determined based on the materials used in the device, etc. The specific method for preparing Bi-based photocatalytic materials adopts the existing solvent thermal synthesis technology in the field, so it will not be described in detail.

[0057] Example 1

[0058] This embodiment provides a method for preparing a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, comprising the following steps:

[0059] S1: Cut commercial copper and zinc metal sheets and polish them with fine sandpaper to serve as the first metal electrode and the second metal electrode respectively, corresponding to the positive and negative electrodes of the device.

[0060] S2: Hygroscopic polymer material poly(4-styrenesulfonic acid), 2-acrylamido-2-methylpropanesulfonic acid sodium salt, polyvinyl alcohol and deionized water are mixed in a mass ratio of 1:0.5:0.1:1 to obtain a hygroscopic dispersion P1.

[0061] S3: Ultrasonic mixing of the BiOBr photocatalytic material with deionized water yielded a photoresponsive dispersion at a concentration of 0.2 g / ml. 0.5 g of this photoresponsive dispersion was then added to 2.6 g of hygroscopic dispersion P1. The mixture was heated in a forced-air oven at 50°C for 6 h to evaporate the solvent and obtain polymer functional layer material P2.

[0062] S4: Place the polymer functional layer material P2 on a flexible polyethylene terephthalate substrate and place a first metal electrode (copper electrode) and a second metal electrode (zinc electrode) at both ends of the upper surface of P2, respectively. A 2 mm gap is reserved between the two electrodes for absorbing environmental water molecules or light excitation collection.

[0063] S5: After the above steps, a compatible integrated driving and power generation device based on ambient moisture adsorption and light collection is finally obtained. Copper wires are respectively configured for the first and second metal electrodes for performance testing.

[0064] In this preparation method, a polymer functional layer, containing a hygroscopic polymer material and a Bi-based photocatalytic material, is formed by a simple solvent evaporation method. This layer is placed on a substrate, while a first metal electrode and a second metal electrode are placed on either side of the upper surface of the polymer functional layer, leaving a gap in between for absorbing atmospheric water molecules or collecting light.

[0065] The structure of a compatible integrated driving power generation device based on environmental moisture adsorption and light collection prepared by the preparation method of this embodiment is as follows Figure 1 As shown, an electrode module, a polymer functional layer module and a substrate module are sequentially arranged according to the structure; the electrode module includes two metal sheets, namely a first metal electrode 1 and a second metal electrode 2, the polymer functional layer module includes a hygroscopic polymer material 3 and a Bi-based photocatalytic material 4, and the substrate module is a flexible polyethylene terephthalate substrate 5.

[0066] Figure 2 A physical picture of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection prepared in this embodiment, as well as a physical picture of the polymer functional layer.

[0067] In this device, when the humidity power generation device is placed in a suitable humidity environment, the hygroscopic material in the polymer functional layer interacts with water molecules, generating a large number of freely mobile hydrogen ions. These interact with the metal electrodes and migrate directionally under asymmetric chemical potential, creating a potential difference between the electrodes and generating a voltage output. The Bi-based photocatalytic material in the polymer functional layer, upon photoexcitation, generates long-lived holes, which oxidize water molecules to release additional hydrogen ions, thereby enhancing output performance. This is illustrated by the following performance test results.

[0068] Figure 3 This is a voltage test performance diagram of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection in this embodiment under different humidity conditions; Figure 4 This is a voltage test performance diagram of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection before and after light collection at a relative humidity of 75% (the light excitation power density is 5.7mW / cm 2 , excitation time is 60s, wavelength is 365nm); Figure 5 This is a current test performance diagram of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection before and after light collection at a relative humidity of 75% (the light excitation power density is 5.7mW / cm 2 , excitation time is 60s, wavelength is 365nm).

[0069] like Figure 3 As shown in Figure 2, the device can generate a stable output voltage of 0.60mV-0.95V when the humidity changes. And thanks to the photocatalytic material in the polymer functional layer, it has the ability to collect light and enhance the output, such as Figure 4 and Figure 5As shown, due to the generation of long-lived holes by photoexcitation, the light-harvesting power generation device can release additional hydrogen ions at an ambient relative humidity of 75%, significantly enhancing output performance. Voltage performance increased from 0.77V to 0.84V, and current performance increased from 18μA to 28μA. Furthermore, the power generation device can be further enhanced through simple series and parallel connections, enabling it to power LEDs or function as a self-powered respiratory sensor.

[0070] Example 2

[0071] This embodiment provides a preparation method for a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, which is the same as the preparation steps in Example 1, except that the mixing mass ratio of the hygroscopic polymer material poly(4-styrenesulfonic acid), 2-acrylamido-2-methylpropanesulfonic acid sodium salt, polyvinyl alcohol and deionized water in the hygroscopic dispersion P1 in step S2 of this embodiment is 0.5:0.2:0.1:1.

[0072] Example 3

[0073] This embodiment provides a preparation method for a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, which is the same as the preparation steps in Example 1, except that the mixing mass ratio of the hygroscopic polymer material poly(4-styrenesulfonic acid), 2-acrylamido-2-methylpropanesulfonic acid sodium salt, polyvinyl alcohol and deionized water in the hygroscopic dispersion P1 in step S2 of this embodiment is 2:1:0.3:1.

[0074] Example 4

[0075] This embodiment provides a preparation method for a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, which is the same as the preparation steps in Example 1, except that in step S3 of this embodiment, 0.5 g of the light-responsive dispersion is weighed and mixed into 9.0 g of the hygroscopic dispersion P1.

[0076] Example 5

[0077] This embodiment provides a preparation method for a compatible integrated drive power generation device based on environmental moisture adsorption and light collection, which is the same as the preparation steps in Example 1, except that in step S3 of this embodiment, 0.5 g of the light-responsive dispersion is weighed and mixed into 4.5 g of the hygroscopic dispersion P1.

[0078] Therefore, the present invention proposes a compatible integrated driving power generation device based on environmental moisture adsorption and light collection and a preparation method thereof, which combines hygroscopic materials and photocatalytic materials. It can realize the collection and conversion of multiple environmental energies through simple stacking assembly, has the advantages of efficient hydrovoltaic power generation and simple system, and solves the difficulties of complex system, high cost and low output efficiency in traditional multiple energy collection and conversion.

[0079] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and does not limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compatible integrated drive power generation device based on environmental moisture adsorption and light collection, characterized in that: Includes the following modules: The polymer functional layer module adsorbs water molecules to dissociate and generate hydrogen ions, and photoexcites holes to oxidize water molecules and release hydrogen ions; Electrode modules provide asymmetric chemical potential to produce charge separation; and a base module, providing a support for placing and assembling the polymer functional layer module and the electrode module; the polymer functional layer module comprises a hygroscopic polymer material and a bismuth-based photocatalytic material; The electrode module includes metal electrodes arranged at both ends of the polymer module; The substrate material of the substrate module is any one of a flexible substrate and a rigid substrate.

2. The method for preparing a compatible integrated driving power generation device based on environmental moisture adsorption and light collection according to claim 1, characterized in that: The following steps are involved: S1. Cutting a metal sheet and polishing it with fine sandpaper to form a first metal electrode and a second metal electrode respectively, as an electrode module, wherein the metal sheet materials of the first metal electrode and the second metal electrode are different; S2, mixing the hygroscopic polymer material with deionized water to obtain a hygroscopic dispersion P1; S3, ultrasonically mixing the bismuth-based photocatalytic material with deionized water to obtain a light-responsive dispersion, then weighing the light-responsive dispersion and mixing it into the hygroscopic dispersion P1, heating and evaporating the mixture to obtain the polymer functional layer material P2; S4. Placing the polymer functional layer material P2 on the substrate material to form a polymer functional layer module and a substrate module, and placing a first metal electrode and a second metal electrode at both ends of the upper surface of the polymer functional layer material P2, respectively, with a gap reserved between the first metal electrode and the second metal electrode for absorbing ambient water molecules or light excitation; S5. Wires are configured for the first metal electrode and the second metal electrode respectively, and finally a compatible integrated driving power generation device based on environmental moisture adsorption and light collection is obtained.

3. The method for preparing a compatible integrated driving power generation device based on environmental moisture adsorption and light collection according to claim 2, characterized in that: In step S1 , the material of the metal sheet is any one of copper, zinc, silver, gold and platinum.

4. The method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection according to claim 2, characterized in that: In step S2, the hygroscopic polymer material is a wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol; the mass ratio of the wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol mixed with deionized water is (0.5-2):(0.2-1):(0.1-0.3):

1.

5. The method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection according to claim 2, characterized in that: In step S2, the hygroscopic polymer material is a wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol; the mass ratio of the wet polymer material poly(4-styrenesulfonic acid), 2-acrylamide-2-methylpropanesulfonic acid sodium salt and polyvinyl alcohol mixed with deionized water is 1:0.5:0.1:

1.

6. The method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection according to claim 2, characterized in that: In step S3, the bismuth-based photocatalytic material is any one of BiOBr nanomaterial, BiOCl nanomaterial and BiWO4 nanomaterial; In step S3, the concentration of the photoresponsive dispersion is 0.2 g / ml, the mass ratio of the photoresponsive dispersion to the hygroscopic dispersion P1 is (0.2-1):(1.8-4.3), the heating evaporation temperature is 45°C-60°C, the time is 4-8h, and the heating method is one of blower drying and vacuum drying oven.

7. The method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection according to claim 6, characterized in that: In step S3 , the mass ratio of the photoresponsive dispersion liquid to the hygroscopic dispersion liquid P1 is 0.5:2.

6.

8. The method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection according to claim 2, characterized in that: In step S4, the substrate material is flexible polyethylene terephthalate or rigid glass; in step S4, the gap between the first metal electrode and the second metal electrode is 0.5 mm-16 mm.

9. According to the method for preparing a compatible integrated driving and power generation device based on environmental moisture adsorption and light collection as described in claim 2, in step S5, the wires configured for the first metal electrode and the second metal electrode are both copper wires.

10. The application of the compatible integrated driving power generation device based on environmental moisture adsorption and light collection according to claim 1, characterized in that: The compatible integrated driving power generation device has a hydrovoltaic conversion function and is used in the fields of energy collection and conversion and flexible wearable sensing.

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