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an alpha-fe 2 o 3 Preparation of /tppa-2 composites and photolysis of water for hydrogen production

A composite material, tppa-2 technology, applied in organic compound/hydride/coordination complex catalysts, hydrogen/synthesis gas production, hydrogen and other directions, can solve the problem of low efficiency of photo-splitting water for hydrogen production, and improve the efficiency of photolysis. The effect of water splitting for hydrogen production

Active Publication Date: 2022-07-15
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing material photolysis water hydrogen production efficiency is not high, and provide a kind of α-Fe 2 o 3 The preparation method of / TpPa-2 composite material

Method used

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  • an alpha-fe <sub>2</sub> o <sub>3</sub> Preparation of /tppa-2 composites and photolysis of water for hydrogen production
  • an alpha-fe <sub>2</sub> o <sub>3</sub> Preparation of /tppa-2 composites and photolysis of water for hydrogen production
  • an alpha-fe <sub>2</sub> o <sub>3</sub> Preparation of /tppa-2 composites and photolysis of water for hydrogen production

Examples

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Effect test

Embodiment 1

[0021] Example 1: A kind of α-Fe of this embodiment 2 O 3 The preparation of / TpPa-2 material is done as follows:

[0022] Step 1. α-Fe 2 O 3 preparation;

[0023] Step 2, α-Fe 2 O 3 Preparation of / TpPa-2 composites: α-Fe 2 O 3 (3.8mg), 1,3,5-trialdehyde phloroglucinol (0.021g) and 2,5-dimethyl-p-phenylenediamine (0.020g) were added to a Pyrex tube, followed by 1,3, 5-trimethylbenzene (1.5 mL), 1,4-dioxane (1.5 mL) and acetic acid (0.5 mL, 3 mol L -1 ) mixed solution, ultrasonically treated for 30min under the condition of ultrasonic frequency of 40KHz, degassed in a liquid nitrogen bath for three freeze-thaw cycles, sealed and heated at 120°C for 72h, filtered and washed with tetrahydrofuran for several times, and dried to obtain α -Fe 2 O 3 / TpPa-2 (mass ratio of 1:9) composite material;

Embodiment 2

[0024] Example 2: The difference between this embodiment and Example 1 is: the α-Fe described in step 2 2 O 3 The mass is 8.5 mg, and other steps and parameters are the same as in Example 1. get α-Fe 2 O 3 / TpPa-2 (mass ratio of 2:8) composite material;

Embodiment 3

[0025] Example 3: The difference between this embodiment and Example 1 or 2 is: the α-Fe described in step 2 2 O 3 The mass is 14.6 mg, and other steps and parameters are the same as in Example 1 or 2. get α-Fe 2 O 3 / TpPa-2 (mass ratio of 3:7) composite material;

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Abstract

A kind of α-Fe 2 O 3 Preparation of / TpPa-2 heterojunction catalyst and photo-splitting water for hydrogen production, involving a kind of α-Fe 2 O 3 Preparation of / TpPa-2 heterojunction catalyst and photolysis of water for hydrogen production. The present invention provides a novel α-Fe 2 O 3 / TpPa-2 material, the purpose is to solve the problem of low hydrogen production efficiency of the existing TpPa-2 photolysis water hydrogen production material. Method: 1. α-Fe 2 O 3 preparation; two, α-Fe 2 O 3 Preparation of / TpPa‑2 composites. The preparation process of the invention is simple and effective, the consumption of reagents is low and the yield is high; and the photocatalyst provided by the invention can effectively improve the problem of low hydrogen production efficiency of TpPa-2 photolysis water. The invention is applied to the field of photocatalytic hydrolysis and hydrogen production, and experiments show that the composite material has excellent photolysis water hydrogen production performance, and decomposes H under the irradiation of 300 W xenon lamp 2 The hydrogen production rate of O can reach 3.77 mmol·h ‑1 ·g ‑1 .

Description

technical field [0001] The present invention relates to a kind of α-Fe 2 O 3 Preparation of / TpPa-2 composites and photolysis of water for hydrogen production. Background technique [0002] As people pay more and more attention to the global problems of energy crisis and environmental pollution, finding sustainable and clean energy to replace fossil fuels has become one of the most important challenges facing human society. In this context, people are gradually turning their attention to clean renewable energy. Hydrogen energy is considered to be the most suitable alternative due to its cleanliness and high calorific value. Among the numerous hydrogen production routes, obtaining hydrogen through photocatalytic water splitting technology is considered to be one of the green and sustainable ways to achieve this energy conversion. In 1972, Japanese scholars Fujishima and Honda found that when the n-type semiconductor TiO was illuminated 2 electrode, can cause water splitti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28C01B3/04
CPCB01J31/28B01J35/004C01B3/042C01B2203/0277Y02E60/36
Inventor 孙晓君张养鹏张凤鸣董鸿
Owner HARBIN UNIV OF SCI & TECH
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