Author:
Hu MeiLing,Fang MingHao,Tang Chao,Yang Tao,Huang ZhaoHui,Liu YanGai,Wu XiaoWen,Min Xin
Abstract
Abstract
TiO2-based nanofibers were synthesized using a sol–gel method and electrospinning technique. The as-spun composite fibers were heat-treated at different temperatures (500°C, 550°C, 600°C, and 650°C) and atmospheres (ammonia and nitrogen) for 4 h. The fibers had diameters of 50 to 200 nm and mainly featured anatase and rutile phases. The anatase phase decreased and the rutile phase increased with increasing temperature. Different nitrogen conditions exerted minimal effects on the TiO2 crystalline phase. Different nitriding atmospheres during preservation heating yielded various effects on fibers. The effect of nitrogen in ammonia atmosphere is better than that in nitrogen atmosphere. The fibers heat-treated at 600°C and subjected to preservation heating in NH3 showed high photocatalytic activity.
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
Reference23 articles.
1. Huang XH, Tang YC, Hu C, Yu HQ, Chen CS: Preparation and characterization of visible-light-active nitrogen-doped TiO2 photocatalyst. J Environ Sci 2005, 17(4):562–565.
2. Takeuchi M, Matsuoka M, Anpo M, Hirao T, Itoh N, Iwamoto N, Yamashita H: Photocatalytic decomposition of NO under visible light irradiation on the Cr-ion-implanted TiO2 thin film photocatalyst. Catal Lett 2000, 67(2–4):135–137.
3. Visa T, Sanchez M, Lopez-Grimau V, Navarro R, Reche S: Photocatalysis with titanium dioxide to remove colour of exhausted reactive dyebaths without pH modification. Desalin Water Treat 2012, 45(1–3):91–99.
4. Valencia S, Cataño F, Rios L, Restrepo G, Marín J: A new kinetic model for heterogeneous photocatalysis with titanium dioxide: case of non-specific adsorption considering back reaction. Appl Catal Environ 2011, 104(3–4):300–304.
5. Liu Y, Liu R, Liu C, Luo S, Yang L, Sui F, Teng Y, Yang R, Cai Q: Enhanced photocatalysis on TiO2 nanotube arrays modified with molecularly imprinted TiO2 thin film. J Hazard Mater 2010, 182(1–3):912.
Cited by
37 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献