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Novel zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectrocatalytic anode material and preparation method thereof

A technology of photoelectric catalysis and anode materials, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of large overpotential and low catalytic efficiency, and achieve low cost and light corrosion resistance Excellent, excellent photoelectric performance

Active Publication Date: 2022-07-22
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photocatalysis occurs on the surface, and the catalytic efficiency is often not high. It needs to overcome resistance such as solution resistance and requires a large overpotential

Method used

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  • Novel zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectrocatalytic anode material and preparation method thereof
  • Novel zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectrocatalytic anode material and preparation method thereof
  • Novel zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectrocatalytic anode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Weigh 1 mole of sodium nitrate and 0.125 mole of ferric chloride hexahydrate, put them into a beaker and stir, and stir for 30 minutes to obtain a uniform hydrothermal reaction solution. The conductive glass or the deposition surface should be placed down, and the hydrothermal reaction solution The transfer volume needs to be checked not to be completely submerged in the conductive glass, and an unsubmerged part of 2 mm × 10 mm is reserved. The hydrothermal temperature should be set to 96 degrees Celsius, and the hydrothermal reaction time should be set to 3 to 4 hours. After taking out the conductive glass, rinse with ethanol and deionized water more than three times, and then vacuum dry at 60 degrees Celsius for 2 hours. Then, a drop-coating experiment was carried out on the iron oxyhydroxide substrate. The drop-coated zinc nitrate solution was 85 μl / cm 2 , and the volume ratio of ethanol and deionized water in the quantitative ratio solvent was 1:4, and then carried ...

Embodiment 2

[0050] Weigh 1 mole of sodium nitrate and 0.145 mole of ferric chloride hexahydrate, put them into a beaker and stir, and stir for 30 minutes to obtain a uniform hydrothermal reaction solution. The conductive glass or the deposition surface should be placed down, and the hydrothermal reaction solution The transfer volume needs to be checked not to be completely submerged in the conductive glass, and an unsubmerged part of 2 mm × 10 mm is reserved. The temperature of the hydrothermal should be set to 97 degrees Celsius and the time of the hydrothermal reaction should be set to 3 hours. After taking out the conductive glass, rinse with ethanol and deionized water more than three times, and then vacuum dry at 60 degrees Celsius for 2 hours. Then, a drop coating experiment was carried out on the iron oxyhydroxide substrate. The zinc nitrate solution for drop coating was 95 μl / cm 2 , and the volume ratio of ethanol and deionized water in the quantitative proportioning solvent was 1...

Embodiment 3

[0052]Weigh 1 mole of sodium nitrate and 0.17 mole of ferric chloride hexahydrate, put them into a beaker and stir, and stir for 30 minutes to obtain a uniform hydrothermal reaction solution. The conductive glass or the deposition surface should be placed down, and the hydrothermal reaction solution The transfer volume needs to be checked not to be completely submerged in the conductive glass, and an unsubmerged part of 2 mm × 10 mm is reserved. The temperature of the hydrothermal should be set to 98 degrees Celsius, and the time of the hydrothermal reaction should be set to 4 hours. After taking out the conductive glass, rinse with ethanol and deionized water more than three times, and then vacuum dry at 60 degrees Celsius for 2 hours. Then, a drop coating experiment was carried out on the iron oxyhydroxide substrate. The zinc nitrate solution for drop coating was 95 μl / cm 2 , and the volume ratio of ethanol and deionized water in the quantitative proportioning solvent was 1:...

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Abstract

The invention discloses a novel zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectrocatalysis anode material and a preparation method thereof. The zinc ferrite and nickel doped zinc-indium-sulfur heterojunction photoelectric catalyst material is prepared through an accurate and ordered three-time hydrothermal and dispensing experiment method. The preparation method of the heterojunction comprises the following steps: firstly, mixing deionized water, ferric chloride and sodium nitrate, and carrying out primary hydrothermal treatment to prepare iron oxyhydroxide; then, dispensing a zinc nitrate solution dissolved by a quantitatively proportioned solvent on a substrate, and carrying out drying, sintering and sodium hydroxide soaking to obtain a zinc ferrite substrate; then, mixing zinc chloride, indium chloride, thiourea and nickel chloride, and carrying out second-time hydrothermal preparation of a nickel-doped zinc-indium-sulfur film; and finally, a ferrocobalt passivation layer is loaded through a third hydrothermal method. Compared with common zinc ferrite, the zinc ferrite heterojunction prepared by the method has the remarkable advantages of excellent performance, excellent light corrosion resistance, stable performance and the like.

Description

technical field [0001] The invention belongs to the field of photoelectric catalytic materials, and in particular relates to a novel photoelectric catalyst material and a preparation method of a new type of zinc ferrite and nickel-doped zinc indium sulfur heterojunction. Background technique [0002] Traditional fossil energy has the characteristics of non-renewable, and resources such as oil and natural gas have the characteristics of uneven geographical distribution. Fossil energy such as coal, oil and natural gas can easily cause corresponding environmental pollution during the combustion process. Hydrogen energy has many advantages such as clean and pollution-free, abundant resource reserves and high energy density, and photoelectric catalysis is a very important and superior way to realize hydrogen energy conversion. Photocatalysis occurs on the surface, and the catalytic efficiency is often not high. It needs to overcome resistance such as solution resistance and requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/043
CPCB01J27/043B01J35/33B01J35/39
Inventor 曹立新任俊伟姚欣鹏董博华郭昊郝智超周直廖巍史志军张灿辉夏水苗张玉琛苟江琳李犇丁保华
Owner OCEAN UNIV OF CHINA
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