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New material for preparing clean hydrogen energy and preparation method of new material

A new material and hydrogen energy technology, applied in the field of new materials prepared by clean hydrogen energy and its preparation, can solve the problems of low hydrogen production rate, narrow photoresponse range, poor stability, etc., and achieve high photocatalytic activity and good repeatability , the effect of wide response range

Inactive Publication Date: 2018-03-02
王丽燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, generally speaking, the existing photocatalysts for water splitting generally have technical problems such as poor stability, low hydrogen production rate, and too narrow photoresponse range, and the development of a new photocatalyst for photocatalytic water splitting and hydrogen production with industrial application prospects has great potential. very important

Method used

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  • New material for preparing clean hydrogen energy and preparation method of new material
  • New material for preparing clean hydrogen energy and preparation method of new material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A new material for the preparation of clean hydrogen energy, comprising the following steps:

[0029] (1) Add 0.23g Zn(Ac) 2 2H 2 O, 0.3gIn(NO 3 ) 3 1. Add 0.6g of cerium nitrate to 100ml of ethanol solution, stir for 45min at a temperature of 70°C, then add 0.03g of thioacetamide, and continue stirring for 2h before use;

[0030] (2) Under constant stirring, add 50ml of 2mg / mL graphene oxide solution to the solution in step (1), and after stirring for 60min, transfer the resulting mixture to the reactor, react at a temperature of 160°C for 18h, and stop the reaction Afterwards, the reactor was cooled to room temperature, washed with water until neutral to obtain product A;

[0031] (3) Add 0.3g In(NO 3 ) 3 , 0.23g Cd(Ac) 2 2H 2 O. Add 0.6 g of cerium nitrate to 100 ml of ethanol solution, stir for 40 min at a temperature of 80° C., then add 0.03 g of thioacetamide, and continue stirring for 2 h for later use;

[0032] (4) Under constant stirring, add 50ml of 2...

Embodiment 2

[0035] A new material for the preparation of clean hydrogen energy, comprising the following steps:

[0036] (1) Add 0.23g Zn(Ac) 2 2H 2 O, 0.32gIn(NO 3 ) 3 1. Add 0.65g of cerium nitrate to 100ml of ethanol solution, stir for 45min at a temperature of 70°C, then add 0.05g of thioacetamide, and continue stirring for 2h before use;

[0037] (2) Under constant stirring, add 60ml of 2 mg / mL graphene oxide solution to the solution in step (1), stir for 60 minutes, transfer the resulting mixture to a reaction kettle, react at a temperature of 180°C for 15 hours, and stop the reaction Afterwards, the reactor was cooled to room temperature, washed with water until neutral to obtain product A;

[0038] (3) Add 0.32g In(NO 3 ) 3 , 0.23g Cd(Ac) 2 2H 2 O. Add 0.65 g of cerium nitrate to 100 ml of ethanol solution, stir for 40 min at a temperature of 80° C., then add 0.05 g of thioacetamide, and continue stirring for 2 h for later use;

[0039] (4) Under constant stirring, add 60...

Embodiment 3

[0042] A new material for the preparation of clean hydrogen energy, comprising the following steps:

[0043] (1) Add 0.3g Zn(Ac) 2 2H 2 O, 0.4gIn(NO 3 ) 3 1. Add 0.7g of cerium nitrate to 100ml of ethanol solution, stir for 45min at a temperature of 70°C, then add 0.06g of thioacetamide, and continue stirring for 2h before use;

[0044] (2) Under constant stirring, add 80ml of 2 mg / mL graphene oxide solution to the solution in step (1), stir for 60 minutes, transfer the resulting mixture to a reaction kettle, react at a temperature of 160°C for 18 hours, and stop the reaction Afterwards, the reactor was cooled to room temperature, washed with water until neutral to obtain product A;

[0045] (3) Add 0.4g In(NO 3 ) 3 , 0. 3g Cd(Ac) 2 2H 2 O. Add 0.7 g of cerium nitrate to 100 ml of ethanol solution, stir for 40 min at a temperature of 80° C., then add 0.06 g of thioacetamide, and continue stirring for 2 h for later use;

[0046] (4) Under constant stirring, add 80ml of...

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Abstract

The invention provides a new material for preparing clean hydrogen energy and a preparation method of the new material. The new material is prepared from Zn(Ac)2.2H2O, In(NO3)3, Cd(Ac)2.2H2O, rare earth compounds, a graphene oxide solution and thioacetamide, wherein the new material is formed by stacking irregular particles, the size of the particles is 10-30 nm, and the specific surface area is 400-600 m<2> / g. According to the preparation method, by adopting a one-step hydrothermal method to compound graphene, zinc-indium sulfide doped with rare earth elements and zinc-cadmium sulfide doped with rare earth elements, on the one hand, the photocatalytic activity of a photocatalytic material can be improved by utilizing graphene to construct a heterojunction structure on the surface of the catalytic material, on the other hand, under the radiation of visible light, graphene can be used as a transitional body of electron transfer in the composite catalytic material, so that the separationof electron and cavities can be achieved effectively, combination of photon-generated carriers can be prevented; therefore, the effect of stable hydrogen generation can be achieved under the action of visible light, and the new material has a pretty good application prospect of industrialization.

Description

technical field [0001] The invention relates to the fields of new energy technology and new material technology, in particular to a new material used for the preparation of clean hydrogen energy and a preparation method thereof. Background technique [0002] With the rapid development of the economy, energy shortage and environmental problems have been paid more and more attention by people. As a clean, efficient, green and non-polluting energy, hydrogen energy is considered to be one of the most effective ways to solve energy and environmental problems. In the method of preparing hydrogen, it is an effective hydrogen production method to convert solar energy into hydrogen energy by using a solar light source and using semiconductor photocatalytic decomposition of water to produce hydrogen. [0003] As early as 1972, Honda et al. used TiO 2 Using Pt as an electrode, by applying an offset potential, the photocatalytic decomposition of water to produce hydrogen was realized ...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J35/10C01B3/04
CPCC01B3/042B01J27/04C01B2203/1076B01J35/617B01J35/40B01J35/39B01J35/615Y02E60/36
Inventor 王丽燕
Owner 王丽燕
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