Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties

作者: Jingqiang Pan , Xinyong Li , Qidong Zhao , Dongke Zhang

DOI: 10.1039/C5RA06443K

关键词:

摘要: A novel nanocomposite electrode with tight and vertically aligned Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays (NTs) has been successfully synthesized via an ultrasonically assisted electrodeposition strategy. The scanning electron microscopy (SEM), transmission (TEM) X-ray diffraction (XRD) of the composite nanostructures indicated that as-prepared electrodes were well-aligned TiO2 NTs Zn0.5Mg0.5Fe2O4 nanoparticles. enhanced absorption under simulated sun light visible regions observed. photoelectrochemical performance showed excellent sensitive response to light. surface-interface charge separation transfer photo-induced electrons holes also demonstrated by optical characterization. Meanwhile, investigations clearly illustrated had more effective photo-conversion capability than unloaded NTs. saturated photocurrent density doped was about 6.5 fold 4 as high illumination light, respectively. In addition, photoelectrocatalytic (PEC) ability in degradation toxic p-nitrophenol species. much improved PEC activity can be attributed both visible-light photocatalytic heterostructure between TiO2.

参考文章(58)
Wen-Tao Sun, Yuan Yu, Hua-Yong Pan, Xian-Feng Gao, Qing Chen, Lian-Mao Peng, CdS quantum dots sensitized TiO2 nanotube-array photoelectrodes. Journal of the American Chemical Society. ,vol. 130, pp. 1124- 1125 ,(2008) , 10.1021/JA0777741
K.P. Thummer, M.C. Chhantbar, K.B. Modi, G.J. Baldha, H.H. Joshi, Localized canted spin behaviour in Journal of Magnetism and Magnetic Materials. ,vol. 280, pp. 23- 30 ,(2004) , 10.1016/J.JMMM.2004.02.017
Hyun Uk Lee, Soon Chang Lee, Sae Hae Choi, Byoungchul Son, Soo Jae Lee, Hae Jin Kim, Jouhahn Lee, Highly visible-light active nanoporous TiO2 photocatalysts for efficient solar photocatalytic applications Applied Catalysis B-environmental. ,vol. 129, pp. 106- 113 ,(2013) , 10.1016/J.APCATB.2012.09.010
Yoshiteru Mizukoshi, Naofumi Ohtsu, Satoshi Semboshi, Naoya Masahashi, Visible light responses of sulfur-doped rutile titanium dioxide photocatalysts fabricated by anodic oxidation Applied Catalysis B-environmental. ,vol. 91, pp. 152- 156 ,(2009) , 10.1016/J.APCATB.2009.05.018
Rekha Dom, R. Subasri, K. Radha, Pramod H. Borse, Synthesis of solar active nanocrystalline ferrite, MFe2O4 (M: Ca, Zn, Mg) photocatalyst by microwave irradiation Solid State Communications. ,vol. 151, pp. 470- 473 ,(2011) , 10.1016/J.SSC.2010.12.034
Hongtao Yu, Xie Quan, Shuo Chen, Huimin Zhao, TiO2−Multiwalled Carbon Nanotube Heterojunction Arrays and Their Charge Separation Capability Journal of Physical Chemistry C. ,vol. 111, pp. 12987- 12991 ,(2007) , 10.1021/JP0728454