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Attapulgite/graphite phase carbon nitride composite material and preparation method thereof

A graphite phase carbon nitride, attapulgite technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the difficulty of recycling, restrict the industrial application of catalysts, and difficult to separate catalyst powders, etc. problems, to achieve the effect of uniform load, high industrial promotion value, and large application value

Active Publication Date: 2015-05-06
山东一开电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual catalytic degradation process, the catalyst powder itself is difficult to separate and recover, which restricts the industrial application and further promotion of the catalyst.

Method used

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  • Attapulgite/graphite phase carbon nitride composite material and preparation method thereof
  • Attapulgite/graphite phase carbon nitride composite material and preparation method thereof
  • Attapulgite/graphite phase carbon nitride composite material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0023] Preparation of modified graphitic carbon nitride:

[0024] Take dicyandiamide and a semi-closed alumina crucible, put it into a muffle furnace and heat it up to 500-700°C, keep it warm for 4-8 hours to obtain graphite phase carbon nitride; take the above graphite phase carbon nitride, add to Stirring in hydrochloric acid with a concentration of 8-12 mol / L for 10-20 hours, drying at 50-100 DEG C after washing to obtain modified graphite phase carbon nitride.

Embodiment 1

[0026] First, disperse 2.5g of the modified graphitic carbon nitride in 75ml of deionized water evenly in a constant temperature water bath at 40°C and stir for 1h as component A; add another 0.5g of attapulgite to 25mL of deionized water and stir for 30min, As component B; slowly drop component B into component A under continuous stirring conditions, continue to stir for 1 hour, transfer the mixed solution into a reaction kettle and keep warm at 150°C for 6 hours, centrifuge and dry to obtain attapulgite Supported graphitic phase carbon nitride composites.

[0027] The X-ray powder diffraction experiment was carried out on the obtained sample, and its morphology and structure were observed under a transmission electron microscope. The attapulgite-loaded graphite phase carbon nitride prepared according to the process parameters of Example 1 was nitrided with attapulgite and graphite phase. Carbon XRD comparison patterns such as figure 1 shown. There are characteristic diffra...

Embodiment 2

[0035] Change the amount of acid-modified graphite phase carbon nitride to 3g, dissolve in 60ml deionized water and stir for 1h, add 0.8g of attapulgite to 40ml of deionized water and stir for 30min, slowly add the suspension of attapulgite Put into the suspension of graphite phase carbon nitride and stir for 1h, hydrothermally react at 200°C for 4h, centrifuge and dry to obtain ATP / g-C 3 N 4 composite material. The test of photocatalytic degradation activity is as embodiment 1, obtains ATP / g-C 3 N 4 The lowest C / C of the sample to methylene blue 0 reached 0.03.

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Abstract

The invention relates to the technical field of nonmetallic mineral finish machining and inorganic processing, in particular to an attapulgite / graphite phase carbon nitride composite material. The attapulgite / graphite phase carbon nitride composite material takes attapulgite as a carrier and takes graphite phase carbon nitride as an active ingredient; the mass ratio of the attapulgite to the graphite phase carbon nitride is 1: 1 to 1: 10. By compounding the graphite phase carbon nitride with the attapulgite, the foreign ions in the attapulgite enter the crystal lattices of the graphite phase carbon nitride to increase the defects and change the energy level; the silicon oxide in the attapulgite can possibly form a heterojunction structure with the graphite phase carbon nitride so as to promote the transfer of photo-generated electrons and avoid the self-compounding of the photo-generated electrons; through the concerted catalysis action between the carrier and the active ingredient, the catalytic activity of the composite material is strengthened to a great extent.

Description

technical field [0001] The invention relates to the technical field of non-metallic mineral finishing and inorganic chemical industry, in particular to attapulgite / graphite phase carbon nitride nanocomposite material. Background technique [0002] The rapid development of industry has promoted the improvement of living standards, and the ensuing environmental pollution problems have become increasingly serious, among which water pollution is particularly harmful. The problem of water pollution has received more and more attention, among which toxic organic compounds are important components of industrial wastewater. Organic wastewater has a large amount of discharge and high pollutant content. It is one of the most difficult industrial wastewater at home and abroad. It contains a large number of dyes with benzene rings, azo, amino groups, etc. These groups are often prone to cancer. Serious threat to human health and safety. [0003] Graphite carbon nitride (g-C 3 N 4 ) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30
CPCY02W10/37
Inventor 李霞章张作松赵晓兵姚超陆晓旺左士祥刘文杰
Owner 山东一开电气设备有限公司
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