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Hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst and preparation method thereof

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: 2019-05-21
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 ballflower-shaped bismuth oxychloride photocatalyst and preparation method thereof
  • Hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst and preparation method thereof
  • Hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

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

[0029] Mix 4 g of commercial P25 (titanium dioxide in mixed phase of anatase crystal and rutile crystal with an average particle size of 25 nm) and 1.5 g of sodium borohydride in a closed container, stir it magnetically to make it evenly mixed, and then transfer the mixture to a tube In the type furnace, hydrogen-argon mixed gas is used to protect the whole reaction process, and the heating rate is controlled to be 10°C per minute. After 3 hours at a high temperature of 300°C, the reactant turns black. After taking it out, it is washed three times with deionized water and ethanol to remove it. Sodium borohydride impurities, and then dried in an oven at 70°C to obtain hydrogenated titanium dioxide;

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

[0031] Take by weighing 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of aceti...

Embodiment 2

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

[0035] Mix 4 g of commercial P25 (titanium dioxide in mixed phase of anatase crystal and rutile crystal with an average particle size of 25 nm) and 1.5 g of sodium borohydride in a closed container, stir it magnetically to make it evenly mixed, and then transfer the mixture to a tube In the type furnace, hydrogen-argon mixed gas is used to protect the whole reaction process, and the heating rate is controlled at 10°C per minute. After 3 hours at 300°C, the reactant turns black. After taking it out, it is washed three times with deionized water and ethanol to remove it. Sodium borohydride impurities, and then dried in an oven at 70°C to obtain hydrogenated titanium dioxide;

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

[0037] Take by weighing 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of acetic acid, make it mix unifo...

Embodiment 3

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

[0041] Mix 4 g of commercial P25 (titanium dioxide in mixed phase of anatase crystal and rutile crystal with an average particle size of 25 nm) and 1.5 g of sodium borohydride in a closed container, stir it magnetically to make it evenly mixed, and then transfer the mixture to a tube In the type furnace, hydrogen-argon mixed gas is used to protect the whole reaction process, and the heating rate is controlled at 10°C per minute. After 3 hours at 300°C, the reactant turns black. After taking it out, it is washed three times with deionized water and ethanol to remove it. Sodium borohydride impurities, and then dried in an oven at 70°C to obtain hydrogenated titanium dioxide;

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

[0043] Take by weighing 2.426 grams of bismuth nitrate pentahydrate, add 15 milliliters of acetic acid, make it mix unifor...

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Abstract

The invention relates to a hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst, and a preparation method and an application thereof, and belongs to the technical field of preparation of environment materials. The preparation method comprises the following steps: weighing a quantitative amount of bismuth nitrate pentahydrate, adding acetic acid, performing magnetic stirring to achieve uniform mixing, adding methanol, continuously performing stirring to form a stable solution, adding glucosamine hydrochloride, performing stir until the glucosamine hydrochloride is completely dissolved, then adding hydrogenated titanium dioxide, performing uniform stirring, transferring the obtained mixed solution system into a reaction kettle, heatingthe reaction kettle in an oven, taking out and naturally cooling the reaction kettle after the heating is finished, respectively washing the obtained reaction product with deionized water and ethanolthree times, and placing and drying the washed reaction product in the oven to obtain the hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst. The purpose of degrading antibiotic wastewater by the hydrogenated titanium dioxide composite three-dimensional ballflower-shaped bismuth oxychloride photocatalyst is achieved in the invention.

Description

technical field [0001] The invention relates to a hydrogenated titanium dioxide composite three-dimensional curd bismuth oxychloride photocatalyst, a preparation method and an application, and belongs to the technical field of environmental material preparation. Background technique [0002] Antibiotics are a class of chemicals produced by microorganisms that inhibit or kill other microorganisms at low concentrations. Antibiotics widely used at present 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 are added to animal feed in sub-therapeutic doses to prevent animal diseases and promote their growth. However, most antibiotics cannot be completely absorbed by the body. About 90% of antibiotics are excreted into the environment in the form of prototype or metabolites through the ...

Claims

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Application Information

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