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A silver phosphate composite photocatalyst for treating rose bengal b in high-salt wastewater and its preparation method and application

A high-salt wastewater and silver phosphate technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc., can solve the problem of wide application of chromium-doped strontium titanate materials , Inability to effectively use visible light and sunlight, etc., to achieve excellent visible light catalytic activity, improve recycling performance, and good electrical conductivity

Active Publication Date: 2022-04-15
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as a catalyst, chromium-doped strontium titanate can only absorb ultraviolet sunlight and cannot effectively use sunlight in the visible light band, which severely limits the wide application of chromium-doped strontium titanate

Method used

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  • A silver phosphate composite photocatalyst for treating rose bengal b in high-salt wastewater and its preparation method and application
  • A silver phosphate composite photocatalyst for treating rose bengal b in high-salt wastewater and its preparation method and application
  • A silver phosphate composite photocatalyst for treating rose bengal b in high-salt wastewater and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A silver phosphate composite photocatalyst for treating Rose Bengal B in high-salt wastewater, the silver phosphate composite photocatalyst includes silver phosphate / polyaniline composite material, and the silver phosphate / polyaniline composite material is loaded with chromium-doped strontium titanate, wherein The silver phosphate / polyaniline composite material uses polyaniline silver phosphate as a carrier, and the polyaniline is loaded with silver phosphate.

[0045] In this embodiment, the mass ratio of silver phosphate / polyaniline composite material and chromium-doped strontium titanate in the silver phosphate composite photocatalyst is 100:3; the mass ratio of silver phosphate and polyaniline in the silver phosphate / polyaniline composite material is 100:5.

[0046] A kind of preparation method of the silver phosphate composite photocatalyst of above-mentioned present embodiment, its preparation process flow chart is as follows figure 1 shown, including the followi...

Embodiment 2

[0060] A silver phosphate composite photocatalyst for treating Rose Bengal B in high-salt wastewater is basically the same as the silver phosphate composite photocatalyst in Example 1, the only difference being: silver phosphate / polyaniline in the silver phosphate composite photocatalyst of Example 2 The mass ratio of composite material and chromium-doped strontium titanate is 100:1.

[0061] A preparation method of the silver phosphate composite photocatalyst for the above-mentioned treatment of Rose Bengal B in high-salt wastewater is basically the same as the preparation method in Example 1, the only difference being that the amount of chromium-doped strontium titanate in Example 2 is 0.003 g.

[0062] The silver phosphate composite photocatalyst that makes in embodiment 2 is denoted as Ag 3 PO 4 / PANI / 1%Cr:SrTiO 3 .

Embodiment 3

[0064] A silver phosphate composite photocatalyst for treating Rose Bengal B in high-salt wastewater is basically the same as the silver phosphate composite photocatalyst in Example 1, the only difference being: silver phosphate / polyaniline in the silver phosphate composite photocatalyst of Example 3 The mass ratio of composite material and chromium-doped strontium titanate is 100:5.

[0065] A kind of preparation method of the above-mentioned silver phosphate composite photocatalyst for treating Rose Bengal B in high-salt wastewater is basically the same as the preparation method in Example 1, the only difference being that the amount of chromium-doped strontium titanate in Example 3 is 0.015 g.

[0066] The silver phosphate composite photocatalyst that makes in embodiment 3, denoted as Ag 3 PO 4 / PANI / 5%Cr:SrTiO 3 .

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Abstract

The invention discloses a silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater and its preparation method and application. The silver phosphate composite photocatalyst comprises silver phosphate / polyaniline composite material loaded with chromium-doped titanium Strontium acid, silver phosphate / polyaniline composite material uses polyaniline silver phosphate as a carrier, and the carrier is loaded with silver phosphate. The preparation method comprises the steps of preparing silver phosphate / polyaniline composite material solution, and preparing the catalyst of the invention by mixing it with chromium-doped strontium titanate solution. The silver phosphate composite photocatalyst of the present invention has the advantages of low cost, good photocatalytic performance, good stability, and environmental protection, and its preparation method has the advantages of simple process, readily available raw materials, easy operation, controllable preparation conditions, green and pollution-free, etc. The catalyst of the invention can effectively degrade and remove pollutants in waste water, especially has better removal effect on rose bengal B in high-salt waste water, has higher use value and better application prospect.

Description

technical field [0001] The invention belongs to the technical fields of semiconductor material photocatalysis application and environmental protection, and relates to a silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater, a preparation method and application thereof. Background technique [0002] The discharge of high-salt wastewater is large, and the content of toxic and harmful organic substances is high, which poses a great threat to the environment. It is difficult to achieve standard discharge treatment using traditional biological and physical and chemical treatment technologies. It is urgent to develop more efficient, economical and applicable high-salt wastewater treatment technologies to protect the water environment and achieve sustainable development of my country's industry. As a clean and renewable energy source, solar energy has attracted much attention to solve the energy crisis, but how to effectively use solar energy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26B01J37/34C02F1/30C02F101/34C02F101/36C02F101/38
CPCB01J31/26B01J37/343C02F1/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10B01J35/39
Inventor 杨春平于啸超罗倩林燕杜诚张冬梅滕青钟袁元
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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