TiO2-loaded biochar composite material and preparation method and application thereof

A technology of composite materials and biochar, applied in chemical instruments and methods, water pollutants, chemical/physical processes, etc., to achieve the effects of short production cycle, reduced preparation cost and time, and high product recovery rate
CN105688875AInactive Publication Date: 2016-06-22HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUNAN UNIV
Publication Date
2016-06-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method and application of a TiO2-loaded biochar composite material.The composite material takes biochar as a base body, and the surface of the base body is loaded with calcined TiO2.The preparation method specifically comprises the steps that biomass powder is firstly immersed into an aqueous tetra-n-butyl titanate and absolute ethyl alcohol solution, then gel containing biomass is prepared, and finally the gel is pyrolyzed through a tubular atmosphere furnace in a N2 atmosphere to obtain the product.In the preparation process of the TiO2-loaded biochar composite material, pyrolysis of the biomass and calcination of the TiO2 are performed in the same heat treatment process, therefore, the preparation cost is reduced, and the preparation time is shortened.The product has the good degrading effect on dyes in wastewater.
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Description

technical field

[0001] The invention belongs to the field of environmental functional materials and water treatment new technologies, in particular to a biochar loaded TiO 2 Preparation methods and uses of composite materials. Background technique

[0002] The discharge of industrial dye wastewater to water bodies has caused great harm to the environmental ecosystem. With the rapid development of industry, a large amount of dye pollutants are discharged into water bodies. These pollutants are large in quantity, slow in degradation rate, and have toxic or carcinogenic effects on humans and animals. Therefore, it is necessary to explore a cost-effective decolorization technology for industrial wastewater before discharge. General dye wastewater treatment methods include adsorption, photocatalytic degradation, biodegradation, and membrane filtration. Among them, photocatalytic technology has simple equipment, easy operation, no secondary pollution, and a wide range of applic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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