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Nitrogen-doped two-dimensional dichalcogenide/sulfur-doped graphite phase carbon nitride composite material, and preparation method and application thereof

A technology of graphite phase carbon nitride and composite materials, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of high cost and affecting the performance of composite materials, and achieve cheap raw materials, combined firm effect

Inactive Publication Date: 2020-02-04
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this preparation method has relatively few reaction steps, the molybdenum disulfide in the prepared composite material is not doped with nitrogen, which affects the performance of the composite material, and molybdenum sulfide is required as a raw material, and the cost is high

Method used

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  • Nitrogen-doped two-dimensional dichalcogenide/sulfur-doped graphite phase carbon nitride composite material, and preparation method and application thereof
  • Nitrogen-doped two-dimensional dichalcogenide/sulfur-doped graphite phase carbon nitride composite material, and preparation method and application thereof
  • Nitrogen-doped two-dimensional dichalcogenide/sulfur-doped graphite phase carbon nitride composite material, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1 Preparation of nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride

[0030] Weigh 20mg of ammonium tetrathiomolybdate and 2g of thiourea in an agate mortar, grind and mix well, transfer the mixture into a ceramic ark, put it into a tube furnace, and pass argon into the tube furnace The air in it was fully replaced with air for 30 minutes, and then the temperature was raised to 500°C at a heating rate of 10°C / min, and kept at this temperature for 2 hours. Fully ground in a bowl, the nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride composite photocatalyst has high photocatalytic activity.

Embodiment 2

[0031] Example 2 Preparation of nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride

[0032] Weigh 50mg of ammonium tetrathiomolybdate and 2g of thiourea in an agate mortar, grind and mix well, transfer the mixture into a ceramic ark, put it into a tube furnace, and pass argon into the tube furnace The air in it was fully replaced with air for 30 minutes, and then the temperature was raised to 500°C at a heating rate of 10°C / min, and kept at this temperature for 2 hours. Fully ground in a bowl, the nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride composite photocatalyst has high photocatalytic activity.

Embodiment 3

[0033] Example 3 Preparation of nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride

[0034] Weigh 75mg of ammonium tetrathiomolybdate and 2g of thiourea in an agate mortar, grind and mix well, transfer the mixture into a ceramic ark, put it into a tube furnace, and pass argon into the tube furnace The air in it was fully replaced with air for 30 minutes, and then the temperature was raised to 500°C at a heating rate of 10°C / min, and kept at this temperature for 2 hours. Fully ground in a bowl, the nitrogen-doped molybdenum disulfide / sulfur-doped graphite-like carbon nitride composite photocatalyst has high photocatalytic activity.

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Abstract

The invention belongs to the technical field of catalytic materials, and particularly relates to a nitrogen-doped two-dimensional dichalcogenide / sulfur-doped graphite phase carbon nitride composite material, and a preparation method and an application thereof. The nitrogen-doped two-dimensional dichalcogenide / sulfur-doped graphite phase carbon nitride composite material has a good photocatalytic hydrogen production performance, has a simple preparation method, can be prepared through a one-step reaction according to the method, simultaneously realizes double doping of graphite phase carbon nitride and molybdenum sulfide, and has a good reaction repeatability.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials, and in particular relates to a nitrogen-doped two-dimensional dichalcogen compound / sulfur-doped graphite phase carbon nitride composite material and its preparation method and application. Background technique [0002] In the past 10 years, semiconductor photocatalysis technology has been greatly developed. This technology produces hydrogen, CO 2 And nitrogen reduction and other reactions, convert low-density solar energy into high-density clean chemical energy on the surface of the catalyst, and have been widely used in the two major fields of the environment and energy. Finding suitable photocatalytic materials is the key to this technology. Due to traditional TiO 2 Photocatalysts do not perform well in terms of spectral utilization efficiency, and quite a few researchers have turned their research efforts to new photocatalysts, among which graphite-like carbon nitride (g-C 3 N ...

Claims

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Application Information

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IPC IPC(8): B01J27/24C01B3/04
CPCB01J27/24C01B3/042C01B2203/0277Y02E60/36
Inventor 苏凤云谢海泉陈艳丽王瑞萍
Owner NANYANG NORMAL UNIV
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