TiO2 Immobilized in RPF-AA Fiber for Photocatalytic Degradation of Low Concentration Methylene Blue in Aqueous Solution
The reactive polymer fiber with high adsorption capacity and good mechanical properties,RPF-AA,was prepared by the processes of pre-treatment,modification of the commercial PAN fiber.In order to improve the repeating circles of the semiconductor titania photocatalyst and broaden its applications,fine titania particles immobilized in RPF-AA fibers (TiO2/RPF-AA) were prepared successfully at room temperature by a dip-coating method.Tetrabutyl orthotitanate (TBOT) was hydrolyzed in presence of hydrolysis control agent tetrabutylammonium hydroxide (TBA)OH and the TiO2 fine particles were crystallized under microwave (MW) irradiation.The X-ray diffraction (XRD) analyses indicated that the fine particles obtained with MW irradiation have much higher crystallinity with a single phase anatase compared with the non-MW-treated solution.The continuous layers of titania were found on RPF-AA fibers by the scanning electron microscopy (SEM) analysis.The fibers with anatase coatings showed high photocatalytic property and better repetition on the photodegradation of MB.The coated fibers were scattered on the water surface and the catalytic reaction proceeded.After completion the decomposition process,the coated fibers were easily recovered using a filter.
Photocatalytic degradation Supported TiO2 Modified PAN fibers Microwave irradiation Thin film
Liu Xue Zhang Hong Wu Xu Xiu Lian Wang Liang Zhao
Department of Materials and Chemical Engineering, Zhongyuan University of Technology,Zhengzhou, Chin Chemistry Institute, Henan Academy of Sciences, Zhengzhou, China
国际会议
北京
英文
38-41
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）