Electrochemical reduction system device based on starch

Abstract

The utility model discloses a starch-based electrochemical reduction system device which comprises a direct-current power supply, a magnetic stirrer, a cathode electrode clamp, a starch salt bridge, an anode electrode clamp, a rotor, a cathode solution, an anode solution, a copper sheet, a graphite sheet, a heating cup, a cathode solution cup and an anode solution cup, the cathode solution cup and the anode solution cup are both arranged in the heating cup, the heating cup is arranged at the top end of the magnetic stirrer, the rotor is arranged at the bottom in the cathode solution cup, the negative electrode of the power source is connected with one end of the cathode electrode clamp, and the other end of the cathode electrode clamp fixedly clamps the copper sheet. According to the utility model, the starch salt bridge made of starch is used for transmitting ions, and when in use, voltage and current are applied to reduce the vat dye through the starch salt bridge, and then the vat dye is dyed.

Description

Technical Field

[0001] The utility model relates to the technical field of vat dyeing, in particular to an electrochemical reduction system device based on starch. Background Art

[0002] Electrochemical direct reduction dyeing is an energy-saving and green vat dyeing technology that can promote the dyeing and finishing industry to develop in a more environmentally friendly and energy-saving direction. The traditional vat dyeing process requires a large amount of chemicals, including dyes, auxiliaries, etc., which not only wastes chemical reagents, but also causes certain problems such as wastewater discharge. Using electrochemistry to reduce vat dyes can effectively reduce the demand for chemicals in the dyeing process, and the pollutant content in the wastewater of this process is significantly reduced, which is conducive to the subsequent process to achieve wastewater purification.

[0003] At present, the direct electrochemical reduction process of reducing dyes often uses ion exchange membranes as the diaphragm materials of the cathode and anode to ensure that the substances undergoing redox reactions at the cathode and anode do not interfere with each other. For example, patent CN102174731 A discloses an electrochemical reduction dyeing device, which includes an anode, a cathode, and an ion exchange membrane isolating the cathode from the anode. However, in actual use, debris such as cloth scraps and thread ends remaining in the electrolyte will cause blockage of the ion membrane pores, thereby seriously reducing the efficiency of electrochemical reduction.

[0004] In view of the above problems, the utility model provides a starch-based electrochemical reduction system device for improving electrochemical reduction efficiency. Utility Model Content

[0005] The utility model provides an electrochemical reduction system device based on starch for improving electrochemical reduction efficiency.

[0006] The utility model aims to provide a starch-based electrochemical reduction system device, comprising a direct current power supply, a magnetic stirrer, a cathode electrode clamp, a starch salt bridge, an anode electrode clamp, a rotor, a cathode solution, an anode solution, a copper sheet, a graphite sheet, a heating cup, a cathode solution cup and an anode solution cup, wherein a power negative electrode, a battery positive electrode and a battery ground are arranged on the direct current power supply, the cathode solution cup and the anode solution cup are both arranged in the heating cup, the heating cup is arranged at the top of the magnetic stirrer, the rotor is arranged at the bottom of the cathode solution cup, the power negative electrode is connected to one end of the cathode electrode clamp, and the other end of the cathode electrode clamp fixes the copper sheet, the battery positive electrode is connected to one end of the anode electrode clamp, and the other end of the anode electrode clamp fixes the graphite sheet.

[0007] Furthermore, the starch salt bridge is made of starch, one end of the starch salt bridge is placed in the anode solution cup, and the other end is placed in the cathode solution cup.

[0008] Furthermore, the cathode solution cup is filled with a cathode solution, the anode solution cup is filled with an anode solution, the copper sheet is placed in the cathode solution, and the graphite sheet is placed in the anode solution.

[0009] The utility model has the following advantages: the utility model uses a starch salt bridge made of starch to transfer ions. When in use, a voltage is applied, and an electric current passes through the starch salt bridge to reduce the reduced dye, and then dyeing is performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the figure: 1. DC power supply; 2. Negative pole of power supply; 3. Battery ground; 4. Positive pole of battery; 5. Magnetic stirrer; 6. Cathode electrode clamp; 7. Starch salt bridge; 8. Anode electrode clamp; 9. Rotor; 10. Copper sheet; 11. Cathode solution; 12. Anode solution; 13. Graphite sheet; 14. Cathode solution cup; 15. Anode solution cup; 16. Heating cup. DETAILED DESCRIPTION

[0012] The utility model provides a starch-based electrochemical reduction system device, comprising a direct current power supply 1, a magnetic stirrer 5, a cathode electrode clamp 6, a starch salt bridge 7, an anode electrode clamp 8, a rotor 9, a cathode solution 11, an anode solution 12, a copper sheet 10, a graphite sheet 13, a heating cup 16, a cathode solution cup 14 and an anode solution cup 15, wherein the direct current power supply 1 is provided with a power supply negative electrode 2, a battery positive electrode 4 and a battery ground 3, the cathode solution cup 14 and the anode solution cup 15 are both arranged in the heating cup 16, the heating cup 16 is arranged at the top of the magnetic stirrer 5, the rotor 9 is arranged at the bottom of the cathode solution cup 14, the power supply negative electrode 2 is connected to one end of the cathode electrode clamp 8, the other end of the cathode electrode clamp 8 fixes the copper sheet 10, the battery positive electrode 4 is connected to one end of the anode electrode clamp 8, and the other end of the anode electrode clamp 8 fixes the graphite sheet 13.

[0013] In this embodiment, the starch salt bridge 7 is made of starch, one end of the starch salt bridge 7 is placed in the anode solution cup 15 , and the other end is placed in the cathode solution cup 14 .

[0014] In this embodiment, the cathode solution cup 14 is filled with a cathode solution 11 , the anode solution cup 15 is filled with an anode solution 12 , the copper sheet 10 is placed in the cathode solution 11 , and the graphite sheet 13 is placed in the anode solution 12 .

[0015] In this embodiment, when in use, the anode electrode clamp 8 fixes the graphite sheet 13 and places it in the anode solution 12 , and the cathode electrode clamp 6 fixes the copper sheet 10 and places it in the cathode solution 12 .

[0016] In this embodiment, a starch salt bridge 7 made of starch is used to transfer ions. When in use, a voltage is applied and an electric current passes through the starch salt bridge 7 to reduce the reduced dye and then dye.

[0017] In this embodiment, the magnetic stirrer 5 drives the rotor 9 to rotate, so that the liquid in the cathode solution cup 14 is in a uniform state.

[0018] In this embodiment, the reduced dye is placed in the cathode solution cup 14, and a small amount of sodium hydroxide and thiourea dioxide (or hydrosulfite) are added as reduction system initiators to promote the reduction of part of the reduced dye. Under the action of the applied current, the reduced dye is completely reduced.

[0019] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A starch-based electrochemical reduction system device, comprising a DC power supply, a magnetic stirrer, a cathode electrode clamp, a starch salt bridge, an anode electrode clamp, a rotor, a cathode solution, an anode solution, a copper sheet, a graphite sheet, a heating cup, a cathode solution cup and an anode solution cup, characterized in that: The DC power supply is provided with a negative power supply electrode, a positive battery electrode and a battery ground; the cathode solution cup and the anode solution cup are both arranged in a heating cup; the heating cup is arranged at the top of the magnetic stirrer; the rotor is arranged at the bottom of the cathode solution cup; the negative power supply electrode is connected to one end of the cathode electrode clamp, and the other end of the cathode electrode clamp fixes and clamps the copper sheet; the positive battery electrode is connected to one end of the anode electrode clamp, and the other end of the anode electrode clamp fixes and clamps the graphite sheet.

2. The starch-based electrochemical reduction system device according to claim 1, characterized in that: The starch salt bridge is made of starch, one end of the starch salt bridge is placed in the anode solution cup, and the other end is placed in the cathode solution cup.

3. The starch-based electrochemical reduction system device according to claim 1, characterized in that: The cathode solution cup is filled with a cathode solution, the anode solution cup is filled with an anode solution, the copper sheet is placed in the cathode solution, and the graphite sheet is placed in the anode solution.

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