文献类型：期刊文献

英文题名：Preparation and photocatalytic degradation activity of TiO2/rGO/polymer composites

作者：Fang, Rui[1];Liang, Ying[1];Ge, Xueping[1,2];Du, Ming[1];Li, Shubiao[1];Li, Tianyu[1];Li, Zhi[1]

机构：[1]E China Univ Sci & Technol, Sch Sci, Inst Nucl Technol & Applicat, Shanghai 200237, Peoples R China;[2]Univ Kansas, Sch Engn, Bioengn Res Ctr, Lawrence, KS 66045 USA

年份：2015

卷号：293

期号：4

起止页码：1151

外文期刊名：COLLOID AND POLYMER SCIENCE

收录：;EI(收录号：20150700511112);WOS:【SCI-EXPANDED(收录号:WOS:000352074200016)】；

基金：This work was sponsored by the National Natural Science Foundation of China (No. 51301071, 51103039), the Science and Technology Commission of Shanghai Municipality (No. 13PJ1401800), and the Innovation Program of Shanghai Municipal Education Commission (No. 14ZZ057).

语种：英文

外文关键词：Anatase TiO2; Graphene oxide; Microsphere; Polymer composite; Photocatalytic degradation

摘要：Graphene oxide (GO) sheets exfoliated from graphite were wrapped on the surfaces of polymer microspheres (2.5 mu m in diameter) to form GO-skined GO/polymer hybrid microspheres. Subsequently, anatase TiO2 nanoparticles were nucleated and grown on the GO surfaces under solvothermal conditions, meanwhile GO was reduced to reduced graphene oxide (rGO). The results of X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), and Raman spectra demonstrate the formation of TiO2/rGO/polymer composites. Solvothermal reaction time was found to be an important factor in the crystallinity and size of anatase TiO2 nanoparticles, further in the photocatalytic activities of TiO2/rGO/polymer composites. The new composites behaved excellent photocatalytic activities, achieving 96 % degradation of rhodamine B in 30 min under visible light. Comparing with commercial TiO2, the improved photocatalytic activities of TiO2/rGO/polymer are attributed to the unique electrical conductivity of rGO, the nanosized anatase TiO2 particles, and the interactions between them.