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Silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater and preparation method and application of photocatalyst

A high-salt wastewater, silver phosphate technology, applied in catalyst activation/preparation, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the limitation of the wide application of chromium-doped strontium titanate materials , Inability to effectively utilize visible light sunlight and other problems to achieve excellent visible light catalytic activity, improve recycling performance, and prolong life.

Active Publication Date: 2019-09-06
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater and preparation method and application of photocatalyst
  • Silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater and preparation method and application of photocatalyst
  • Silver phosphate composite photocatalyst for treating rose bengal B in high-salt wastewater and preparation method and application of photocatalyst

Examples

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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 a preparation method and application of the photocatalyst. The silver phosphate composite photocatalyst is prepared from a silver phosphate / polyaniline composite material, the silver phosphate / polyaniline composite material is loaded with chromium-doped strontium titanate, andpolyaniline silver phosphate is a carrier of the silver phosphate / polyaniline composite material and is loaded with silver phosphate. The preparation method of the photocatalyst comprises the step that a silver phosphate / polyaniline composite material solution is prepared and compounded with a chromium-doped strontium titanate solution to prepare the photocatalyst. The silver phosphate composite photocatalyst has the advantages of low cost, good photocatalytic performance, good stability, environmental protection and the like; the preparation method of the photocatalyst has the advantages thatthe process is simple, the raw materials are easy to obtain, the operation is easy, the preparation conditions are controllable, and the preparation method is environmentally friendly and free of pollution; the photocatalyst can effectively degrade and remove pollutants in the wastewater, especially has a good removal effect on the rose bengal B in the high-salt wastewater, and has high use valueand good application prospects.

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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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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