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A kind of application of photocatalytic film

A photoelectric catalysis and oxide technology, applied in diaphragms, organic diaphragms, electrolytic components, etc., can solve the problems of low water dissociation efficiency and large power consumption of bipolar membranes, achieve good solar light absorption capacity, save power, and improve water content. rate effect

Active Publication Date: 2019-05-07
TAIYUAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The specific technical problem to be solved by the present invention is the problem of low water dissociation efficiency and large power consumption of bipolar membranes in the prior art, and provides an application of photoelectric catalytic membrane

Method used

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  • A kind of application of photocatalytic film
  • A kind of application of photocatalytic film
  • A kind of application of photocatalytic film

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The prepared area is 5 x 5 cm 2 The photoelectrocatalytic membrane was used for water dissociation experiments, such as figure 1 As shown, the device consists of five compartments connected in series, which are marked as room 1, room 2, room 3, room 4 and room 5 from left to right, and the volume is 100mL. Anion exchange membrane, cation exchange membrane and photocatalytic membrane are separated by 4 diaphragms, among which chamber 1, chamber 2, chamber 4 and chamber 5 use a concentration of 0.10mol L -1 Na 2 SO 4 The solution is used as the electrolyte, and the concentration in chamber 3 is 0.05mol L -1 The NaCl solution is used as the electrolyte, the anode uses titanium-based metal oxides, and the cathode uses g-C 3 N 4 The composite material with graphene uses a DC stabilized power supply to provide an external voltage of 2.0V, and a 350W xenon lamp as a light source.

[0029] Under the action of photoelectricity, the ZnCr-MMO film in the middle layer of the ...

Embodiment 2

[0031] The prepared area is 5 x 5 cm 2 The photoelectrocatalytic membrane was used for water dissociation experiments. Such as figure 1 As shown, the device consists of five compartments connected in series, which are marked as room 1, room 2, room 3, room 4 and room 5 from left to right, and the volume is 100mL. Anion-exchange membrane, cation-exchange membrane and photocatalytic membrane are separated by 4 diaphragms, among which chamber 1, chamber 2, chamber 4 and chamber 5 use a concentration of 0.50mol L -1 Na 2 SO 4 The solution is used as the electrolyte, and the concentration in chamber 3 is 1.0molL -1 NaCl solution as electrolyte. The anode uses titanium-based metal oxide, and the cathode uses g-C 3 N 4 The composite material with graphene uses a DC stabilized power supply to provide an external voltage of 2.5V, and a 350W xenon lamp as a light source.

[0032] Under the action of photoelectricity, the NiFe-MMO film in the middle layer of the photocatalytic film...

Embodiment 3

[0034] The prepared area is 5 x 5 cm 2 The photoelectrocatalytic membrane was used for water dissociation experiments. Such as figure 1 As shown, the device consists of five compartments connected in series, which are marked as room 1, room 2, room 3, room 4 and room 5 from left to right, and the volume is 100mL. Anion exchange membrane, cation exchange membrane and photocatalytic membrane are separated by four diaphragms. Among them, room 1, room 2, room 4 and room 5 adopt a concentration of 1.50mol L -1 Na 2 SO 4 The solution is used as the electrolyte, and the concentration in chamber 3 is 3.0molL -1 NaCl solution as electrolyte. The anode uses titanium-based metal oxide, and the cathode uses g-C 3 N 4 The composite material with graphene uses a DC stabilized power supply to provide an external voltage of 3.0V, and a 350W xenon lamp as a light source.

[0035] Under the action of photoelectricity, the MgAl-MMO film in the middle layer of the photocatalytic film pro...

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Abstract

The invention belongs to the technical field of a photoelectric catalytic membrane, and particularly relates to applications of the photoelectric catalytic membrane. The applications of the photoelectric catalytic membrane are that the photoelectric catalytic membrane with a middle interlayer containing mixed metal oxide is used for dissociation of water. A specific method is as follows: a water dissociation device which is formed by connecting five compartments in series is adopted, the five compartments are respectively labeled as compartments 1, 2, 3, 4 and 5 from left to right, the volumeof which is 100mL respectively, the five compartments are isolated sequentially by adopting a photoelectric catalytic membrane, an anionic exchange membrane, a cationic exchange membrane and a photoelectric catalytic membrane, a direct-current stabilized power supply is adopted to supply external voltage of 0.5-2.0V, a 350W xenon lamp is used as a light source, and water is promoted to be dissociated into H<+> and OH<-> by the mixed metal oxide in the middle layer of the photoelectric catalytic membrane.

Description

technical field [0001] The invention belongs to the technical field of photoelectric catalysis membranes, and in particular relates to the application of a photoelectric catalysis membrane. Background technique [0002] Bipolar membrane is composed of cation exchange membrane, anion exchange membrane, and intermediate interface layer. Due to its excellent performance, it has been widely used in acid and alkali production, sewage treatment, organic synthesis and other fields. When the reverse pressure is applied on both sides of the bipolar membrane (the cation exchange membrane layer faces the negative electrode, and the anion exchange membrane layer faces the positive electrode), the charged ions in the two ion exchange membrane layers will migrate from the middle interface layer to the main solution. After all the charged ions in the membrane have migrated, the current load will be completed by the hydrogen ions and hydroxide ions generated by the water dissociation in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B13/02C25B13/08C25B1/04
CPCC25B1/04C25B13/02C25B13/08C25B1/55Y02E60/36
Inventor 刘宪韩艳娇杨慧敏宋秀丽代红艳梁镇海
Owner TAIYUAN NORMAL UNIV
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