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Supported of TiO2 and Their Photodegradation on Dye Wastewater

Author: LiYeQing
Tutor: XuDuanPing
School: Liaoning Technical University
Course: Environmental Engineering
Keywords: Photodegradation TiO2 Dye Decolorization rate Load
CLC: X703
Type: Master's thesis
Year: 2009
Downloads: 64
Quote: 0
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Abstract


Tetra-n -butyl titanate as the titanium source , using the sol - gel synthesis of TiO 2 sol , and diatomaceous earth and glass fiber mesh as a carrier load TiO 2 prepared photocatalytic . To ultra-violet light, a certain concentration of acid scarlet red solution and the direct target degradation studied suspended nano TiO 2 photocatalytic performance and load type TiO 2 synthesis condition . The results show that : TiO 2 of acid scarlet red and direct all have good photocatalytic degradation , pH, initial concentration , TiO 2 dosage, exposure time other parameters on the degradation effect has a certain impact. In the most favorable conditions and direct acid scarlet red decolorization rates were 74% and 85%. Diatomaceous earth and glass fiber net load after TiO 2 also has a good performance of photocatalytic degradation of dye , catalyst ratio, calcination temperature and calcination time , glass fiber diameter and other parameters of the load type TiO < sub> 2 have a certain impact on the catalytic properties . Under acidic conditions in the most appropriate and direct scarlet red decolorization rates were 72% and 66 % or more.

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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