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A kind of preparation method of biochar-based titanium dioxide photocatalytic material

A technology of titanium dioxide and production method, applied in physical/chemical process catalysts, chemical instruments and methods, water pollutants, etc., can solve the problems of expensive graphene-based materials, difficulty in recycling, and difficulty in large-scale promotion, etc.

Inactive Publication Date: 2018-11-30
INNER MONGOLIA UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, graphene-based materials are expensive, difficult to recycle, and difficult to promote on a large scale in practical applications

Method used

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  • A kind of preparation method of biochar-based titanium dioxide photocatalytic material
  • A kind of preparation method of biochar-based titanium dioxide photocatalytic material
  • A kind of preparation method of biochar-based titanium dioxide photocatalytic material

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Experimental program
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Embodiment

[0025] Example: A rhodamine B solution with a concentration of 20 mg / L was prepared as a simulated dye wastewater. Take 50mL of simulated dye wastewater into six 60mL quartz glass tubes, add 0.05g of biochar-based titanium dioxide photocatalytic material, and place them under different conditions for photocatalytic reaction. Among them, three quartz glass tubes are placed in a photocatalytic reactor, and a 500W xenon lamp is used as a visible light source. The remaining 3 quartz glass tubes were placed in another photocatalytic reactor without external light source. A magnetic stirrer was placed in each quartz tube, and the rotation speed was set to 700r / min. The reactor and the stirrer were turned on, and the dark reaction was performed for 1h. After the photocatalyst reached the equilibrium of adsorption and desorption, a sample was taken once, and the light source was turned on. After turning on the light source, take a sample every 1 hour, 3 mL each time, and take 4 sampl...

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Abstract

The invention belongs to a practical technology in the field of environmental engineering and provides a manufacturing method of a biological carbon based on titanium dioxide photoactive (multilayered graphene / titanium dioxide) material. The environment-friendly type photocatalytic material with visible light activity is prepared through mainly taking waste animal feather, tetrabutyl titanate, absolute ethyl alcohol, potassium hydroxide and the like as raw materials, utilizing mutual effects of the materials at high temperature and carrying out an integrated heating, cross-linking and carbonization process. A preparation process accords with principles of simplicity, rapidness, greenness and high efficiency; the preparation cost of similar materials is greatly reduced. The prepared novel material has no toxin and harm, is convenient to recycle and has high catalytic efficiency and meets process and engineering requirements of water treatment.

Description

technical field [0001] The invention relates to a synthesis and preparation method of a visible light catalyst and its application in wastewater treatment, and relates to the field of water treatment in engineering, and to the field of material synthesis and catalysts in technology. Background technique [0002] The problem of water pollution has become increasingly prominent with the rapid development of the economy. In the field of water treatment, various treatment methods emerge in an endless stream. As a green emerging technology, photocatalytic technology is non-toxic, harmless, non-residual, wide High efficiency and other characteristics, so it is placed high expectations. As a well-studied photocatalyst, titanium dioxide has been used in practice. However, the band gap of titanium dioxide is relatively wide, and it usually only has photocatalytic activity under ultraviolet light. There are only about 5% of ultraviolet light in sunlight. Energy consumption. Therefo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/18B01J21/06C02F1/30C02F101/30
CPCY02W10/37
Inventor 李慧琴王晓晶刘卫李鑫苏毅国柴占丽胡敬韬
Owner INNER MONGOLIA UNIVERSITY
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