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Ag/Ag3PO4 photocatalyst and preparing method and application thereof

A technology of photocatalyst and silver nitrate, which is applied in the field of environmental purification and sustainable development of the environment, can solve the problems of low quantum efficiency, photocorrosion, low utilization rate of visible light, etc., achieve high catalytic efficiency, simple production process, and benefit the environment Effect of purification and purification of water pollution

Inactive Publication Date: 2017-01-11
MINNAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with TiO 2 The metal oxides represented by CdS have the bottleneck of low utilization rate of visible light and low quantum efficiency, and are difficult to be industrialized; while the metal sulfides represented by CdS face severe photocorrosion and are difficult to apply on a large scale.

Method used

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  • Ag/Ag3PO4 photocatalyst and preparing method and application thereof
  • Ag/Ag3PO4 photocatalyst and preparing method and application thereof
  • Ag/Ag3PO4 photocatalyst and preparing method and application thereof

Examples

Experimental program
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Embodiment 1

[0032] 1.02 g silver nitrate (AgNO 3) was dispersed in 100 mL of deionized water to form a silver nitrate solution; then, 50 mL of 0.04mol / L diammonium hydrogen phosphate ((NH 4 ) 2 HPO 4 ) solution, continue to stir and react for 6 h; then, separate the obtained solid by filtration, wash until the pH is neutral, and dry to obtain Ag 3 PO 4 ; Take 0.3 g of the prepared Ag 3 PO 4 Disperse in deionized water, irradiate with visible light for 2 h, filter and separate, wash and dry to obtain Ag / Ag 3 PO 4 .

[0033] Weigh 0.1g Ag / Ag 3 PO 4 Place in a photocatalytic reactor, add 60mL of deionized water, ultrasonically disperse evenly, then add 60mL of 40 ppm bisphenol A solution to form a mixed solution of 0.1g catalyst and 120 mL of bisphenol A at 20ppm; place the mixed solution in In the photocatalytic reaction system, before the light is turned on, it is a dark room, and it is stirred to reach the adsorption-desorption equilibrium. Then, the first sample is taken, and t...

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Abstract

The invention discloses photocatalyst for degrading environmental hormone bisphenol A, taking silver nitrate and diammonium hydrogen phosphate as raw materials, and obtain the Ag / Ag3PO4 photocatalyst after further sediment- illumination. The invention firstly uses the Ag / Ag3PO4 photocatalyst in liquid phase degradation of environmental hormone bisphenol A with high degradation efficiency reaching 96. 5% and mineralization rate of 93. 2%, and achieves the purpose of environment purification. In addition, the catalyst of the invention has simple manufacturing technique and can be produced in large scale based on visible light as driving energy and air as oxidizing agent to degrade environmental hormones, which is beneficial to sustainable development of environment purification and human society.

Description

technical field [0001] The invention belongs to the field of environmental purification and sustainable development of the environment, and specifically relates to an Ag / Ag 3 PO 4 Photocatalyst and its preparation method and application. Background technique [0002] On April 16, 2015, the State Council Guofa (2015) No. 17 "Water Pollution Prevention and Control Action Plan" required strict control of environmental hormone chemical pollution. Before the end of 2017, complete the survey on the production and use of environmental hormone chemicals, monitor and assess the risks of water sources, agricultural product planting areas and concentrated aquatic product breeding areas, and implement measures such as the elimination, restriction, and substitution of environmental hormone chemicals. However, in the past decade, various abnormalities have appeared in the reproductive, immune, nervous, endocrine and other systems of some wild animals and humans. Among them, reproductiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/18C02F1/30C02F1/72C02F101/34
CPCC02F1/30C02F1/725B01J27/1817C02F2101/345C02F2305/10B01J35/39
Inventor 张燕辉胡世荣林进妹
Owner MINNAN NORMAL UNIV
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