Preparation method of selenide/graphite-phase carbon nitride composite photocatalyst material

A graphitic carbon nitride and selenide technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as application of composite materials, and achieve simple preparation process, convenient operation, and synthesis. low cost effect

Inactive Publication Date: 2017-11-28
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing research, this composite material has not been prepared by the method of the present invention and has not been applied in photocatalytic hydrogen production

Method used

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  • Preparation method of selenide/graphite-phase carbon nitride composite photocatalyst material
  • Preparation method of selenide/graphite-phase carbon nitride composite photocatalyst material
  • Preparation method of selenide/graphite-phase carbon nitride composite photocatalyst material

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specific Embodiment 1

[0019] Mix the ZIF-67CoNi zeolite imidazolate framework material with the graphite phase carbon nitride powder, so that the mass ratio of the ZIF-67CoNi zeolite imidazolate framework material is 2.5%, and add the same mass of ZIF-67CoNi zeolite imidazolate framework material Selenium powder, ground in an agate mortar for 15 min, in N 2 Under the atmosphere, the temperature was raised to 350 °C at a rate of 5 °C / min for 2 hours, and then naturally cooled to room temperature.

specific Embodiment 2

[0020] Mix the ZIF-67CoNi zeolite imidazolate framework material with the graphite phase carbon nitride powder, so that the mass ratio of the ZIF-67CoNi zeolite imidazolate framework material is 5%, and add the same quality as the ZIF-67CoNi zeolite imidazolate framework material Selenium powder, ground in an agate mortar for 15 min, in N 2 Under the atmosphere, the temperature was raised to 350 °C at a rate of 5 °C / min for 2 hours, and then naturally cooled to room temperature.

specific Embodiment 3

[0021] Mix the ZIF-67CoNi zeolite imidazolate framework material with the graphite phase carbon nitride powder, so that the mass ratio of the ZIF-67CoNi zeolite imidazolate framework material is 10%, and add the same quality as the ZIF-67CoNi zeolite imidazolate framework material Selenium powder, ground in an agate mortar for 15 min, in N 2 Under the atmosphere, the temperature was raised to 350 °C at a rate of 5 °C / min for 2 hours, and then naturally cooled to room temperature.

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Abstract

The invention relates to a preparation method of a selenide / graphite-phase carbon nitride composite photocatalyst material. The material is formed after selenide nanoparticles are deposited on the surface of lamellar graphite-phase carbon nitride. Selenide in the composite photocatalyst material accounts for 2.5%-12.5% of the mass of the material by mass and is a cobalt diselenide and nickel diselenide compound. The composite photocatalyst material can effectively increase the reaction contact area and reduce compositing of light induced electrons and holes, and accordingly, the photocatalytic hydrogen production capacity of the graphite-phase carbon nitride is effectively improved through cobalt diselenide and nickel diselenide which serve as promoters. Therefore, the selenide / graphite-phase carbon nitride composite photocatalyst material has wide application prospects in photocatalysis, energy, environment and other fields.

Description

technical field [0001] The invention relates to a preparation method of a selenide / graphite-phase carbon nitride composite photocatalyst material, which belongs to the fields of material preparation and energy environment. Background technique [0002] The development of today's society is inseparable from energy, and most of the existing energy depends on the combustion of fossil fuels. However, while fossil fuels provide us with energy, they also have problems of scarcity and secondary pollution. Therefore, the development of clean energy is imminent. Among many clean energy sources, hydrogen energy has received extensive attention. At present, hydrogen production technologies mainly include oil cracking, electrolysis of water, and photocatalytic water splitting. However, the method of cracking oil is still restricted by fossil energy, and the method of electrolysis of water consumes a lot of electric energy. Therefore, the low-cost hydrogen production method of photocat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C01B3/04
CPCB01J27/24B01J35/004C01B3/042Y02E60/36
Inventor 孙晓君杨豆豆张凤鸣董鸿孟祥斌刘斌张欣黄晓宽
Owner HARBIN UNIV OF SCI & TECH
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