Immobilization of TiO_2 nanoparticles on activated carbon fiber and its photodegradation performance for organic pollutants

查看全文 作　　者：Shuhua Yao Jinyang Li Zhongliang [1]Shi

机构地区：[1]Department of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China

出　　处：《Particuology》索引2010年第8卷第3期,共7页

基　　金：supported by the Education Bureau Foundationn of Liaoning Province (No. 2008573) ;the Doctor Foundation of Shenyang Institute of Chemical Technology (No. 20063202) 摘　　要：The immobilization of titanium dioxide (TiO 2 ) on activated carbon fiber (ACF), (TiO 2 /ACF), was accomplished by sol–gel-adsorption method followed by calcination at temperatures varying from 300 to 600 °C in an argon atmosphere. The material properties were determined by scanning electron microscope (SEM), X-ray diffraction (XRD) and nitrogen adsorption. The photodegradation behavior of TiO 2 /ACF was investigated in aqueous solutions using phenol and methyl orange (MO) as target pollutants. The effects of calcination temperature, photocatalyst dosage, initial solution pH and radiation time on the degradation of organic pollutants were studied. It was found that organic pollutants could be removed rapidly from water by the TiO 2 /ACF photocatalyst and the sample calcined at 500 °C exhibited the highest removal efficiency. Kinetics analysis showed that the photocatalytic degradation reaction can be described by a first-order rate equation. In addition, the possibility of cyclic usage of the photocatalyst was also confirmed. Moreover, TiO 2 is tightly bound to ACF and can be easily handled and recovered from water. It can therefore be potentially applied for the treatment of water contaminated by organic pollutants. 关键词：TIO2纳米粒子光催化降解性能有机污染物活性炭纤维固定化扫描电子显微镜催化剂用量焙烧温度

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Immobilization of TiO_2 nanoparticles on activated carbon fiber and its photodegradation performance for organic pollutants

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