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a kind of ni(oh) 2 Preparation method of /tppa-2 material and hydrogen production by photolysis of water

A tppa-2, raw material technology, which is applied in the field of photocatalytic hydrolysis for hydrogen production, can solve the problem of low hydrogen production efficiency of photo-splitting water, and achieve the effect of improving the performance of photo-splitting water for hydrogen production

Active Publication Date: 2021-02-02
肇东天时化工有限责任公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing TpPa-2 material photolysis water hydrogen production efficiency is not high, and provide a kind of Ni(OH) 2 Preparation method of / TpPa-2 material

Method used

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  • a kind of ni(oh) <sub>2</sub> Preparation method of /tppa-2 material and hydrogen production by photolysis of water
  • a kind of ni(oh) <sub>2</sub> Preparation method of /tppa-2 material and hydrogen production by photolysis of water

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Experimental program
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Embodiment 1

[0011] Embodiment 1: a kind of Ni(OH) of the present embodiment 2 The preparation of / TpPa-2 material is accomplished in the following steps:

[0012] Step 1. Preparation of TpPa-2: Add 1,3,5-trialdehyde phloroglucinol (0.063 g) and 2,5-dimethyl-p-phenylenediamine (0.048 g) into a heat-resistant glass tube, Then a mixed solution of 1,3,5-trimethylbenzene (1.5 mL), 1,4-dioxane (1.5 mL) and acetic acid (0.5 mL, 3 mol / L) was added, and the ultrasonic frequency was 40 kHz Sonicate for 30 min under the same conditions, perform three freeze-thaw cycle degassing in a liquid nitrogen bath, heat at 120 °C for 72 h after sealing, filter and wash with tetrahydrofuran three times, and dry in a vacuum oven at 180 °C for 24 h;

[0013] Step 2, Ni(OH) 2 / TpPa-2 material preparation: Disperse TpPa-2 in 30mL 0.25 mol / L NaOH solution, sonicate for 20-30 min at an ultrasonic frequency of 35-45 kHz, add 42 µL Ni(NO 3 ) 2 The solution was treated under the condition of magnetic stirring for 6 ...

Embodiment 2

[0014] Embodiment 2: the difference between this embodiment and embodiment 1 is: the Ni(NO 3 ) 2 The volume is 83 µL, and other steps and parameters are the same as in Example 1. Obtain (1 mol%) Ni(OH) 2 / TpPa-2 material.

Embodiment 3

[0015] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is: the Ni(NO 3 ) 2 The volume is 208 µL, and other steps and parameters are the same as those in Example 1 or 2. Obtain (2.5mol%) Ni(OH) 2 / TpPa-2 material.

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Abstract

a Ni(OH) 2 The preparation method of / TpPa‑2 material relates to a kind of Ni(OH) 2 / TpPa‑2 material preparation method. The invention provides a novel Ni(OH) 2 / TpPa‑2 material, the purpose is to solve the problem of low hydrogen production efficiency of existing TpPa‑2 photo-splitting hydrogen production materials. The preparation process of the present invention is simple and effective, the consumption of reagents is small and the yield is high; and the photocatalyst provided by the present invention can effectively improve the problem of low hydrogen production efficiency of TpPa-2 photolysis of water. The invention is applied to the field of hydrogen production by photocatalytic hydrolysis, and experiments show that Ni(OH) 2 The / TpPa‑2 material has a good response performance to visible light, and has a strong and wide absorption band in the visible light region, and the absorption band edge is about 640nm. At the same time, Ni(OH) 2 / TpPa‑2 material has excellent performance of hydrogen production by photolysis of water, and its photolysis rate of hydrogen production can reach 1896 μmol g ‑1 h ‑1 .

Description

technical field [0001] The present invention relates to a Ni(OH) 2 The preparation method of / TpPa-2 material is applied in the field of hydrogen production by photocatalytic hydrolysis. Background technique [0002] The two major challenges facing the sustainable development of the world are energy and environmental issues. The increasingly depleted fossil energy and the increasingly serious environmental pollution seriously affect the survival and development of human beings. Finding and developing renewable green energy that can replace fossil energy has become a major issue at home and abroad. Research hotspots in energy utilization and materials science. At present, the new energy sources that have been developed mainly include wind energy, geothermal energy, ocean energy, and solar energy. Among them, solar energy is considered to be one of the most promising new energy sources due to its inexhaustible and inexhaustible advantages. Improving the utilization efficien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28B01J37/10C01B3/04
CPCB01J31/28B01J35/004B01J37/10C01B3/042Y02E60/36
Inventor 张凤鸣孟祥斌盛敬莉李靖于涛源
Owner 肇东天时化工有限责任公司
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