Effect of Er³⁺ Doped on Photocatalytic Properties of ZnO-TiO₂ Nanofibers

Abstract:

Er³⁺ doped ZnO-TiO₂ nanofibers with diameter of 100～200 nm were prepared by electrospinning mothed after calcined at high temperature, using polyvinylpyrrolidone(PVP), Zn(NO₃)₂·6H₂O, Er(NO₃)₃·5H₂O, Ti(OC₄H₉)₄ as raw materials. The composite nanofibers were characterized by XRD, SEM, and UV-V respectively. Effects of different calcined temperatures on structure and photocatalytic degradation were investigated. The results indicated that the crystallinity becomes better with the increasing of calcination temperature. The composite nanofibers had the best effects of photocatalytic degradation of methylene blue, when Er³⁺ doping content was 0.3 wt.% and calcined temperature was 500 °C.

• Periodical: Key Engineering Materials (Volume 591)
• Pages: 258-262
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.591.258
• Online since: November 2013
• Authors: Meng Wang, Ming Hao Fang*, Chao Tang, Zhao Hui Huang, Yang Ai Liu, Xiao Wen Wu
• Keywords: Electro-Spinning, Nanofiber, Photocatalytic, ZnO-TiO₂: Er³⁺

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