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A kind of au-bi 2 moo 6 /Diatomite composite material and its preparation method and application

A technology of au-bi2moo6 and composite materials, which is applied in the field of development of new non-metallic mineral materials, can solve the problems of complex steps, poor environmental protection, and low efficiency of composite materials, and achieve the effect of high environmental protection level, short process and simple process

Active Publication Date: 2019-10-18
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the above problems, the present invention provides a kind of Au-Bi 2 MoO 6 / Diatomite composite material and preparation method thereof, to solve the low efficiency of existing diatomite composite photocatalytic materials, poor environmental protection and the preparation of Au-Bi 2 MoO 6 Complicated steps for composite materials

Method used

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  • A kind of au-bi <sub>2</sub> moo <sub>6</sub> /Diatomite composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Weigh 1.3g of diatomaceous earth and disperse it in 6.5g of deionized water, then add 0.65g of 1% tetrachloroauric acid trihydrate (HAuCl) 4 ·3H 2 0) solution, stir and mix to obtain mixed solution A;

[0031] (2) take by weighing 1.15g of urea and dissolve it in 3.1g of deionized water to obtain mixed solution B;

[0032] (3) Weigh 0.39g Bi(NO 3 ) 3 ·5H 2O was stirred and dissolved in the mixed solution of 1.755g ethylene glycol and 0.3g glycerol to obtain mixed solution C;

[0033] (4) Weigh 0.071g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 4.26 g of deionized water to obtain mixed solution D;

[0034] (5) The mixed solution A obtained in step (1) is slowly added to the mixed solution B obtained in step (2), stirred for 2 min to obtain mixed solution E, and then the mixed solution C obtained in step (3) is slowly added to the mixed solution. In E, stir for 3min to obtain mixed solution F;

[0035] (6) Slowly add mixed solution D obtained in step (4) ...

Embodiment 2

[0037] (1) Weigh 0.8g of diatomaceous earth and disperse it in 4.8g of deionized water, then add 0.48g of 1% tetrachloroauric acid trihydrate (HAuCl) 4 ·3H 2 0) solution, stir and mix to obtain mixed solution A;

[0038] (2) take by weighing 0.64g of urea and dissolve it in 1.92g of deionized water to obtain mixed solution B;

[0039] (3) Weigh 0.3105g Bi(NO 3 ) 3 ·5H 2 0 is stirred and dissolved in the mixed solution of 1.4656g ethylene glycol and 0.1553g glycerol to obtain mixed solution C;

[0040] (4) Weigh 0.0569g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 3.869 g of deionized water to obtain mixed solution D;

[0041] (5) The mixed solution A obtained in step (1) is slowly added to the mixed solution B obtained in step (2), stirred for 3 min to obtain mixed solution E, and then the mixed solution C obtained in step (3) is slowly added to the mixed solution. In E, stir for 5min to obtain mixed solution F;

[0042] (6) Slowly add the mixed solution D obtained...

Embodiment 3

[0044] (1) Weigh 1.8g of diatomaceous earth and disperse it in 7.2g of deionized water, then add 0.9g of 1% tetrachloroauric acid trihydrate (HAuCl) 4 ·3H 2 0) solution, stir and mix to obtain mixed solution A;

[0045] (2) take by weighing 1.62g urea and dissolve it in 4.05g deionized water to obtain mixed solution B;

[0046] (3) Weigh 0.4367g Bi (NO 3 ) 3 ·5H 2 0 is stirred and dissolved in the mixed solution of 1.8778g ethylene glycol and 0.4367g glycerol to obtain mixed solution C;

[0047] (4) Weigh 0.0795g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 4.452g deionized water to obtain mixed solution D;

[0048] (5) The mixed solution A obtained in step (1) is slowly added to the mixed solution B obtained in step (2), stirred for 1 min to obtain mixed solution E, and then the mixed solution C obtained in step (3) is slowly added to the mixed solution. In E, stir for 1min to obtain mixed solution F;

[0049] (6) Slowly add mixed solution D obtained in step (4) i...

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Abstract

The invention discloses an Au-Bi 2 MoO 6 / Diatomaceous earth composite material and its preparation method and application. The preparation method of the present invention uses urea as the sol-gel agent, which can simultaneously generate Au-Bi on diatoms. 2 MoO 6 , the preparation method does not produce waste water, does not use strong acid or strong alkali, the process is simple and does not produce waste water, and the level of green environmental protection is high. Au-Bi prepared by the present invention 2 MoO 6 / Diatomite composite material has visible light catalytic properties and can be used in the photocatalytic purification of printing and dyeing wastewater and Cr(VI)-containing wastewater.

Description

[0001] (1) Technical field [0002] The present invention relates to a kind of Au-Bi 2 MoO 6 diatomite / diatomite composite material and its preparation method and application, in particular to the preparation of Au-Bi by using diatomite as a carrier 2 MoO 6 / Diatomite composite material belongs to the technical field of development of new non-metallic mineral materials. [0003] (2) Background technology [0004] Natural diatomite is a siliceous sedimentary rock formed by the deposition of biological diatom remains, the main component is amorphous SiO 2 . Because diatomite is light in weight, porous, chemically stable and contains a large number of surface hydroxyl groups, it is a good adsorption material and catalyst carrier material. People have discovered the practical value of diatomite, and it is widely used in sewage or air purification as a photocatalyst carrier. [0005] At present, most of the related researches on diatomite-based composite photocatalytic materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/68B01J37/08C02F1/30
CPCC02F1/30B01J23/002B01J23/68B01J37/088C02F2305/10C02F2101/22B01J2523/00B01J35/39B01J2523/19B01J2523/41B01J2523/54B01J2523/68
Inventor 孙青盛嘉伟徐林智张俭
Owner ZHEJIANG UNIV OF TECH
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