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A kind of zinc phosphate photocatalyst and its preparation method and application

A technology of photocatalyst and zinc phosphate, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., and achieves the effects of simple preparation method, good application prospect and low cost

Active Publication Date: 2021-01-05
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Research shows that there is no report of zinc phosphate containing crystal water as a photocatalytic material

Method used

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  • A kind of zinc phosphate photocatalyst and its preparation method and application
  • A kind of zinc phosphate photocatalyst and its preparation method and application
  • A kind of zinc phosphate photocatalyst and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0022] At room temperature, add 3mmol of zinc nitrate hexahydrate into a beaker containing 30mL of aqueous solution and stir for 20 minutes; then add 2mmol of diammonium hydrogen phosphate, stir for half an hour, transfer to a polytetrafluoroethylene lining, and keep the temperature at 180°C Hydrothermal reaction for 24 hours; after 24 hours of reaction, naturally cool to room temperature, centrifuge, wash, and dry; add the obtained product to 30 mL of absolute ethanol, stir for 1.5 hours; then add the suspension to the polytetrafluoroethylene lining, 180 ℃ constant temperature hydrothermal reaction for 24 hours; after 24 hours of reaction, naturally cool to room temperature, centrifuge, wash and dry, the product is Zn 3 (PO 4 ) 2 2H 2 O.

[0023] Depend on figure 1 It can be seen that the product prepared in Example 1 and Zn 3 (PO 4 ) 2 2H 2 The O standard card (JCPDS: 10-0333) is consistent, and the product prepared in Example 1 is pure phase Zn 3 (PO 4 ) 2 2H 2 ...

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Abstract

The invention discloses a zinc phosphate photocatalyst. The photocatalyst has a chemical formula of Zn3(PO4)2.2H2O, is of a nanometer sheet structure, has the specification dimension as follows: the thickness is 300 to 500nm, and the size is (10 to 15 mum)*(20 to 25 mum). Through the simple hydro-thermal reaction, the photocatalysis material Zn3(PO4)2.2H2O with excellent performance can be obtained through preparation. On the other hand, compared with Zn3(PO4)2 without crystallization water, the synthesized photocatalyst Zn3(PO4)2.2H2O has the advantages that the activity is improved by 1.92 times; good application prospects are realized.

Description

technical field [0001] The invention relates to a novel zinc phosphate photocatalyst, a simple preparation method thereof, and photocatalytic activity. Background technique [0002] In the 21st century, human beings are faced with two very serious problems of energy and environment, especially the environmental problems caused by toxic and refractory organic pollutants (such as polycyclic aromatic hydrocarbons, polychlorinated biphenyls, pesticides, dyes, etc.), which have become an impact major issues of human survival and health. Utilizing the surface energy activation characteristics of semiconductor oxide materials under sunlight irradiation, organic pollutants can be effectively oxidized and decomposed. Compared with traditional environmental purification treatment methods, semiconductor photocatalysis technology has the advantages of mild reaction conditions, no secondary pollution, simple operation and significant degradation effect. As the most important phosphate,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/18B01J35/02C02F1/32C02F101/38C02F101/30
CPCB01J27/1808B01J35/004B01J35/02C02F1/32C02F2101/308C02F2101/38
Inventor 滕飞顾文浩滕怡然刘喆张桉刘芯汝杨志成刘再伦
Owner NANJING UNIV OF INFORMATION SCI & TECH