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Hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst and preparation method

A technology of hydrogenated titanium dioxide and three-dimensional curds, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of green environmental protection treatment technology, easy operation and high-efficiency treatment technology

Active Publication Date: 2022-07-05
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bismuth oxychloride is a new type of semiconductor photocatalytic material, which has excellent photocatalytic degradation of organic pollutants, stable chemical properties, strong catalytic activity, non-toxic and harmless, and has wide application prospects. However, due to its large band gap Wide, can only use ultraviolet light, and ultraviolet light accounts for only 4% of the sun's energy

Method used

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  • Hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst and preparation method
  • Hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst and preparation method
  • Hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst and preparation method

Examples

Experimental program
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Embodiment 1

[0028] (1) preparation of hydrogenated titanium dioxide:

[0029] Mix 4 g of commercial P25 (titanium dioxide in a mixed phase of anatase and rutile crystals with an average particle size of 25 nm) with 1.5 g of sodium borohydride in an airtight container, stir magnetically to mix well, then transfer the mixture to a tube. In the furnace, the whole reaction process was protected by a mixture of hydrogen and argon, and the heating rate was controlled to be 10 °C per minute. After 3 hours at a high temperature of 300 °C, the reactant turned black. After taking it out, it was washed three times with deionized water and ethanol. The sodium borohydride impurity is then dried in an oven at 70°C to obtain hydride titanium dioxide;

[0030] (2) Preparation of hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst:

[0031] Weigh 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of acetic acid, and mix them uniformly by magnetic ...

Embodiment 2

[0034] (1) preparation of hydrogenated titanium dioxide:

[0035] Mix 4 g of commercial P25 (titanium dioxide in a mixed phase of anatase and rutile crystals with an average particle size of 25 nm) with 1.5 g of sodium borohydride in an airtight container, stir magnetically to mix well, then transfer the mixture to a tube. In the furnace, the whole reaction process was protected by a mixture of hydrogen and argon, and the heating rate was controlled to be 10 °C per minute. After 3 hours at a high temperature of 300 °C, the reactant turned black. After taking out, it was washed three times with deionized water and ethanol. The sodium borohydride impurity is then dried in an oven at 70°C to obtain hydride titanium dioxide;

[0036] (2) Preparation of hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst:

[0037] Weigh 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of acetic acid, and mix them uniformly by magnetic sti...

Embodiment 3

[0040] (1) preparation of hydrogenated titanium dioxide:

[0041] Mix 4 g of commercial P25 (titanium dioxide in a mixed phase of anatase and rutile crystals with an average particle size of 25 nm) with 1.5 g of sodium borohydride in an airtight container, magnetically stir to homogenize, and transfer the mixture to a tube. In the furnace, the whole reaction process was protected by a mixture of hydrogen and argon, and the heating rate was controlled to be 10 °C per minute. After 3 hours at a high temperature of 300 °C, the reactant turned black. After taking it out, it was washed three times with deionized water and ethanol. The sodium borohydride impurity is then dried in an oven at 70°C to obtain hydride titanium dioxide;

[0042](2) Preparation of hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst:

[0043] Weigh 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of acetic acid, and mix them uniformly by magnetic ...

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Abstract

The invention relates to a hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst, a preparation method and application, and belongs to the technical field of environmental material preparation. Weigh a certain amount of bismuth nitrate pentahydrate, add acetic acid, mix uniformly by magnetic stirring, then add methanol, continue stirring to form a stable solution, add glucosamine hydrochloride, stir until completely dissolved, then add hydrogenated titanium dioxide, stir evenly, Then transfer the mixed solution system to the reaction kettle, heat it in an oven, take it out after heating, let it cool naturally, wash it with deionized water and ethanol three times each, and then place it in an oven to dry to obtain the hydrogenated titanium dioxide composite three-dimensional curd chloride. Oxybismuth photocatalyst. The invention achieves the purpose of degrading antibiotic wastewater by using hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst.

Description

technical field [0001] The invention relates to a hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst, a preparation method and application, and belongs to the technical field of environmental material preparation. Background technique [0002] Antibiotics are a class of chemical substances produced by microorganisms that can inhibit or kill other microorganisms at low concentrations. Currently widely used antibiotics can be divided into β-lactams, quinolones, tetracyclines, aminoglycosides, macrolides, sulfonamides, etc. according to their chemical structures. For a long time, antibiotics have been widely used in the treatment of human and animal diseases, and added to animal feed in sub-therapeutic doses to prevent animal diseases and promote their growth. However, most of the antibiotics cannot be completely absorbed by the body. About 90% of the antibiotics are excreted into the environment in the form of prototypes or metabo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/135C02F1/30C02F101/38
Inventor 董红军刘春波胡伟
Owner JIANGSU UNIV