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Preparing method of activated carbon fibre loaded titanium oxide thin film and application method thereof

A technology of activated carbon fiber and titanium oxide film, applied in chemical instruments and methods, chemical/physical process, physical/chemical process catalyst, etc. Firmness and other problems, to achieve the effect of firm fixation, simple preparation process and high activity

Inactive Publication Date: 2010-05-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since activated carbon is generally in the form of granular and powder, most of the complexes with titanium dioxide still maintain the original form of activated carbon, and its separation and recovery process is relatively complicated, and it is easy to wear and pulverize during application.
At the same time, the titanium dioxide powder is not firmly fixed, and it is easy to enter the solution and become a suspension system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] 1. Preparation of titania sol:

[0028] (1) Add 0.05 mol of tetra-n-butyl titanate to 30 mL of absolute ethanol at room temperature, and stir for 30 min to obtain a uniform and transparent yellow solution ①;

[0029] (2) Fully mix 28.32mL of absolute ethanol, 20mL of glacial acetic acid, and 7.2mL of distilled water at room temperature to obtain a solution ②, and put it in a separatory funnel for later use;

[0030] (3) Under the conditions of magnetic stirring and a constant temperature of 30°C, the solution ② was slowly added dropwise to the solution ① to obtain a uniform and transparent sol.

[0031] 2. Loading of titanium dioxide on activated carbon fiber felt:

[0032] (1) Place the freshly prepared sol in a 30°C incubator and age it for 3 hours before use;

[0033] (2) ACF felt (viscose base, BET specific surface area 1276m 2 / g, total pore volume 0.597cm 3 / g) cut into 100×25mm long squares, dried at 120°C for 4 hours, took out, placed flat on a clean and dry...

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Abstract

The invention discloses a making method and using method of loaded titanium oxide film of active carbon fiber to dispose organic pollution in the water, which is characterized by the following: adopting felted active carbon fiber as carrier; fixing titanium oxide sol on the surface of active carbon; processing under nitrogen atmosphere through high temperature; adopting ultraviolet as exciting light source with solution depth at 0.4-0.6cm under 20-40 deg.c; setting the irradiating quantity on each unit area of surface at 12.5-12.8mW / cm2; maintaining the density of dissolved oxygen.

Description

technical field [0001] The invention belongs to a new material and its preparation method and application method, in particular to a preparation method and application method of a carbon-based photocatalytic composite material for treating organic pollutants in water. Background technique [0002] The control and treatment of environmental pollution is a major issue that human society is facing and expecting to solve. Since modern industries discharge wastewater containing a large amount of organic pollutants to the surrounding water bodies, many organic pollutants contain benzene rings that have a strong inhibitory effect on organisms and are difficult to biodegrade, resulting in less and less available water resources. [0003] At present, photocatalytic oxidation is widely used in the treatment of refractory organic pollutants in water. Photocatalytic oxidation is a direct and effective treatment method, which has attracted more and more attention, especially the use of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06B01J21/18C02F1/30C02F1/32
Inventor 郑经堂石建稳叶智刚张玉贞张延宗赵玉翠曲险峰刘颖于维钊李石
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)