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Method for preparing bismuth vanadate-based compound light catalyst

A technology of composite light and catalyst, which is applied in the field of photocatalytic materials to achieve the effect of improving utilization rate, mild reaction conditions and high catalytic efficiency

Inactive Publication Date: 2017-01-04
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems existing in existing photocatalysts, and provides a method for preparing bismuth vanadate-based composite photocatalysts

Method used

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  • Method for preparing bismuth vanadate-based compound light catalyst

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Experimental program
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Effect test

Embodiment 1

[0023] A method for preparing a bismuth vanadate-based composite photocatalyst, comprising the following steps:

[0024] (1) Weigh each raw material according to the following proportions: 60g of bismuth nitrate, 15g of ammonium metavanadate, 5g of sodium lauryl sulfate, 8g of manganese slag, 8g of mica powder, 1g of lanthanum oxide, 2g of indium nitrate and 10g of starch;

[0025] (2) Dissolve bismuth nitrate in ethylene glycol to obtain solution A, and dissolve ammonium metavanadate in water to obtain solution B;

[0026] (3) Put solution A into an ultrasonic generator, then pour solution B into solution A, adjust the pH to 4 with ammonia water, and continue ultrasonication for 60 minutes at a frequency of 40KHz to obtain a mixed solution;

[0027] (4) Put the mixed solution, sodium lauryl sulfate, manganese slag, mica powder, lanthanum oxide, indium nitrate and starch into the ball mill, then add 150mL of water, and stir for 60min at a speed of 300r / min to obtain a paste; ...

Embodiment 2

[0030] A method for preparing a bismuth vanadate-based composite photocatalyst, comprising the following steps:

[0031] (1) Weigh each raw material according to the following proportions: 70g of bismuth nitrate, 17g of ammonium metavanadate, 8g of sodium lauryl sulfate, 10g of manganese slag, 5g of mica powder, 1.5g of lanthanum oxide, 3g of indium nitrate and 12g of starch;

[0032] (2) Dissolve bismuth nitrate in ethylene glycol to obtain solution A, and dissolve ammonium metavanadate in water to obtain solution B;

[0033] (3) Put solution A into an ultrasonic generator, then pour solution B into solution A, adjust the pH to 5 with ammonia water, and continue ultrasonication for 45 minutes at a frequency of 50KHz to obtain a mixed solution;

[0034] (4) Add the mixed solution, sodium lauryl sulfate, manganese slag, mica powder, lanthanum oxide, indium nitrate and starch into the ball mill, then add 150mL of water, and stir for 45min at a speed of 400r / min to obtain a paste...

Embodiment 3

[0037] A method for preparing a bismuth vanadate-based composite photocatalyst, comprising the following steps:

[0038] (1) Weigh each raw material according to the following proportions: 80g of bismuth nitrate, 20g of ammonium metavanadate, 10g of sodium lauryl sulfate, 5g of manganese slag, 10g of mica powder, 2g of lanthanum oxide, 2g of indium nitrate and 15g of starch;

[0039] (2) Dissolve bismuth nitrate in ethylene glycol to obtain solution A, and dissolve ammonium metavanadate in water to obtain solution B;

[0040] (3) Put solution A into an ultrasonic generator, then pour solution B into solution A, adjust the pH to 4 with ammonia water, and continue ultrasonication for 30 minutes at a frequency of 60KHz to obtain a mixed solution;

[0041] (4) Add the mixed solution, sodium lauryl sulfate, manganese slag, mica powder, lanthanum oxide, indium nitrate and starch into the ball mill, then add 150mL of water, and stir for 30min at a speed of 500r / min to obtain a paste;...

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Abstract

The invention discloses a method for preparing bismuth vanadate-based compound light catalyst. The method includes the steps that all the raw materials of 60-80 parts of bismuth nitrate, 15-20 parts of ammonium metavanadate, 5-10 parts of lauryl sodium sulfate, 5-10 parts of manganese ore residues, 8-12 parts of mica powder, 1-2 parts of lanthanum oxide, 2-3 parts of indium nitrate and 10-15 parts of starch are weighed by weight; the bismuth nitrate is dissolved in ethylene glycol, so that a solution A is obtained, and the ammonium metavanadate is dissolved in water, so that a solution B is obtained; the solution B is poured into the solution A to obtain a mixed solution; then the mixed solution, lauryl sodium sulfate, manganese ore residues, mica powder, lanthanum oxide, indium nitrate and starch are added into a ball mill, and then an appropriate amount of water is added for stirring, so that paste is obtained; the paste is washed with distilled water, and then through drying, grinding and baking, the light catalyst is obtained. The method has the advantages that the source of raw materials is wide, cost is low, the preparation technology is simple, production efficiency is high, energy consumption is low, adsorption performance is good, catalytic activity is high, and catalytic efficiency is high; organic pollutants in waste water can be efficiently catalyzed and degraded under irradiation of visible light.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a method for preparing a bismuth vanadate-based composite photocatalyst. Background technique [0002] Since the 21st century, with the improvement of the pace of industrialization and the excessive use of natural resources, various environmental pollution and energy scarcity problems have continued to intensify. Therefore, it is imminent to control all kinds of pollution and find new energy sources to relieve the pressure on the earth. Photocatalytic technology has been widely used in many fields such as wastewater treatment, gas purification, sterilization, antifouling, self-cleaning materials, dye-sensitized solar cells, cosmetics, and gas sensors. Photocatalysis is based on the basic characteristics of semiconductor materials that can generate photogenerated electrons with strong reductivity and holes with strong oxidative properties under light excitation. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/22B01J35/10C02F1/30B01J20/02C02F101/38
CPCB01J20/0259C02F1/30B01J23/22C02F2101/308C02F2101/40B01J35/39B01J35/615Y02W10/37
Inventor 杨贺
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD