文献类型：期刊文献

英文题名：Electrospinning synthesis of N-doped TiO2fiber membranes and its enhanced photocatalysis performance

作者：Gao, Jie[1];Zhang, Lingfan[1];Qian, Junchao[2];Chen, Feng[2];Zhang, Wenqing[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Suzhou Univ Sci & Technol, Sch Chem Biol & Mat Engn, Jiangsu Key Lab Environm Funct Mat, Suzhou 215009, Peoples R China

年份：2021

卷号：75

期号：1

起止页码：115

外文期刊名：CHEMICAL PAPERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000549298000001)】；

基金：This work was supported by National Natural Science Foundation of China (21407050); The Natural Science Foundation of the Jiangsu province (BK20180103); Qing Lan Project of Jiangsu Province; Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment.

语种：英文

外文关键词：Chitosan fiber membrane; N-doped TiO2; Photocatalysis performance; Waste water treatment

摘要：N-doped TiO(2)fiber membranes were prepared by electrospinning method and adsorptive chitosan was added as a nitrogen source. The obtained TiO(2)fiber membranes were analyzed by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results show that the film has adsorption properties; furthermore, the morphology of the TiO(2)fiber with a chitosan content of 0.5 g after calcination provides the best catalytic performance; An anatase-rutile titania was found in the oxidized fiber film found in the Raman spectrum TiO2; XPS demonstrated that the introduction of chitosan could replace N atom with partial lattice oxygen in TiO2. Moreover, the degradation rate of methylene blue of the material was about 60-80% after 4-h reaction, and the maximum degradation rate was achieved by nanofiber film with chitosan concentration of 0.5 g.