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Preparation of agcl/linbo by a self-fluxing salt method 3 Composite photocatalyst method

A technology of composite light and catalyst, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of simple device, low reaction temperature and fast reaction speed

Active Publication Date: 2017-06-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the synthesis of silver chloride / lithium niobate composite photocatalyst materials using niobium pentoxide, lithium chloride and silver nitrate by solvothermal method has not been reported yet.

Method used

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  • Preparation of agcl/linbo by a self-fluxing salt method <sub>3</sub> Composite photocatalyst method
  • Preparation of agcl/linbo by a self-fluxing salt method <sub>3</sub> Composite photocatalyst method
  • Preparation of agcl/linbo by a self-fluxing salt method <sub>3</sub> Composite photocatalyst method

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0015] Specific embodiment one: a kind of self-fluxing salt method of this embodiment prepares AgCl / LiNbO 3 The method of composite photocatalyst is carried out according to the following steps:

[0016] 1. Weighing Nb 2 o 5 , AgNO 3 , LiCl in a mortar, fully ground for 10 to 20 minutes to obtain a mixed powder; the Nb 2 o 5 and AgNO 3 The molar ratio of the LiCl is 1:2~3; the quality of the LiCl is Nb 2 o 5 and AgNO 3 the sum of the quality;

[0017] 2. Pour the mixed powder prepared in step 1 into a crucible, react at a temperature of 800-1000°C for 2-5 hours, and then cool naturally to room temperature to obtain a reactant;

[0018] 3. Wash the reactant obtained in step 2 with distilled water, ultrasonic, and centrifuge 6-8 times, then wash 1-2 times with absolute ethanol, and finally dry it in a drying oven at a temperature of 80-100°C to obtain AgCl / LiNbO 3 composite photocatalyst.

[0019] This embodiment includes the following beneficial effects:

[0020] 1....

specific Embodiment approach 2

[0022] Specific embodiment two: the difference between this embodiment and specific embodiment one is: fully grind for 20 minutes in step one. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the Nb described in step one 2 o 5 and AgNO 3 The molar ratio is 1:2. Others are the same as in the first or second embodiment.

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Abstract

Preparation of AgCl / LiNbO by a self-fluxing salt method 3 The invention discloses a composite photocatalyst method, relating to a preparation method of a photocatalyst material. The invention provides a self-fluxing salt method for preparing AgCl / LiNbO 3 Method for composite photocatalysts. The inventive method is: one, take by weighing Nb 2 o 5 , AgNO 3 1. LiCl is fully ground in a mortar to obtain a mixed powder; 2. Pour the mixed powder into a crucible to react to obtain a reactant; 3. Wash the reactant with distilled water, ultrasonic, and centrifuge, then wash with absolute ethanol, and finally Dry to get AgCl / LiNbO 3 composite photocatalyst. The invention has the advantages of simple process, low reaction temperature, fast reaction speed, simple device and simple operation; the prepared material powder has high visible light photocatalytic activity and good crystallinity. The invention is applied to the field of preparation of photocatalyst materials.

Description

technical field [0001] The invention relates to a preparation method of a photocatalyst material. Background technique [0002] The 21st century is a new era of rapid development of the global economy, culture, and modern industry. Non-renewable energy sources such as coal and oil are being exhausted, and the resulting environmental pollution is also threatening the earth on which human beings depend. With the rapid development of modern industry and economy, the negative effects on the environment are becoming more and more serious. As a new method, photocatalytic technology has a good prospect for the utilization of environmental pollutants and renewable energy. In 1976, Garey et al. discovered that titanium dioxide could dechlorinate polychlorinated biphenyls under ultraviolet light, thus opening up the application of photocatalytic technology in the field of photodegradation of organic matter. The technology of photocatalytic oxidation degradation of toxic pollutants ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/138
Inventor 陈刚武学森胡宜栋孔华彬吴月含徐建国
Owner HARBIN INST OF TECH