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

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文摘 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 ℃ 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℃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.
来源 Particuology ,2010,8(3):272-278 【核心库】
DOI 10.1016/j.partic.2010.03.013
关键词 Titanium dioxide ; Activated carbon fiber ; Photocatalytic degradation ; Phenol MO
地址

Department of Applied Chemistry, Shenyang Institute of Chemical Technology, China, Shenyang, 110142

语种 英文
文献类型 研究性论文
ISSN 1674-2001
学科 化学
基金 the Education Bureau Foundation of Liaoning Province ;  Doctor Foundation of Shenyang Institute of Chemical Technology
文献收藏号 CSCD:3890477

参考文献 共 37 共2页

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引证文献 20 篇

1 李建新 碳、铈共掺杂改性TiO2负载ACFS复合水净化材料的制备与性能 化工新型材料,2011,39(7):52-55
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2 Liu Jie Large-scale synthesis of hollow titania spheres via flame combustion Particuology,2011,9(6):632-636
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