Design of Ag-Modified TiO2-Based Films with Controlled Optical and Photocatalytic Properties

作者: N.P. Smirnova , E.V. Manuilov , O.M. Korduban , Yu.I. Gnatyuk , V.O. Kandyba

DOI: 10.1007/978-90-481-2309-4_10

关键词: PhotochemistryX-ray photoelectron spectroscopyDopingMaterials scienceChemical decompositionPhotocatalysisCatalysisNanoparticleSilver oxideNoble metal

摘要: TiO2-based functional coatings doped with Ag nanoparticles were prepared via template assisted sol–gel method an attempt to enhance the decomposition reaction rate of industrial water pollutants. The films characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), photoelectron (XPS), and UV–vis spectroscopies. Catalytic activity in photooxidative organic dyes remarkably enhances TiO2/ZnO samples homogeneously distributed noble metal nanoparticles. TiO2 matrix improve efficiency charge separation charge-transfer processes, acting as traps for photoinduced electrons.

参考文章(34)
Enrico Traversa, Maria Luisa Di Vona, Patrizia Nunziante, Silvia Licoccia, Jong Won Yoon, Takeshi Sasaki, Naoto Koshizaki, Photoelectrochemical properties of sol-gel processed Ag-TiO2 nanocomposite thin films Journal of Sol-Gel Science and Technology. ,vol. 22, pp. 115- 123 ,(2001) , 10.1023/A:1011276622863
Prashant V. Kamat, Dan Meisel, Semiconductor nanoclusters-physical, chemical, and catalytic aspects Elsevier. ,(1997)
Peidong Yang, Dongyuan Zhao, David I. Margolese, Bradley F. Chmelka, Galen D. Stucky, Generalized syntheses of large-pore mesoporous metal oxides with semicrystalline frameworks Nature. ,vol. 396, pp. 152- 155 ,(1998) , 10.1038/24132
Prashant V. Kamat, Composite semiconductor nanoclusters Studies in Surface Science and Catalysis. ,vol. 103, pp. 237- 259 ,(1997) , 10.1016/S0167-2991(97)81105-6
Shijun Liao, Huang Donggen, Denghua Yu, Yunlan Su, Gaoqing Yuan, Preparation and characterization of ZnO/TiO2, SO42-/ZnO/TiO2 photocatalyst and their photocatalysis Journal of Photochemistry and Photobiology A-chemistry. ,vol. 168, pp. 7- 13 ,(2004) , 10.1016/J.JPHOTOCHEM.2004.05.010
E. Masetti, J. Bulir, S. Gagliardi, V. Janicki, A. Krasilnikova, G. Di Santo, C. Coluzza, Ellipsometric and XPS analysis of the interface between silver and SiO2, TiO2 and SiNx thin films Thin Solid Films. ,vol. 455, pp. 468- 472 ,(2004) , 10.1016/J.TSF.2003.11.244
Brendan Enright, Donald Fitzmaurice, Spectroscopic Determination of Electron and Hole Effective Masses in a Nanocrystalline Semiconductor Film The Journal of Physical Chemistry. ,vol. 100, pp. 1027- 1035 ,(1996) , 10.1021/JP951142W
X HOU, M HUANG, X WU, A LIU, Preparation and studies of photocatalytic silver-loaded TiO2 films by hybrid sol-gel method Chemical Engineering Journal. ,vol. 146, pp. 42- 48 ,(2009) , 10.1016/J.CEJ.2008.05.041
Baifu Xin, Liqiang Jing, Zhiyu Ren, Baiqi Wang, Honggang Fu, Effects of Simultaneously Doped and Deposited Ag on the Photocatalytic Activity and Surface States of TiO2 Journal of Physical Chemistry B. ,vol. 109, pp. 2805- 2809 ,(2005) , 10.1021/JP0469618
Z.M. Shi, L.N. Jin, Influence of La3+/Ce3+-doping on phase transformation and crystal growth in TiO2-15 wt% ZnO gels Journal of Non-crystalline Solids. ,vol. 355, pp. 213- 220 ,(2009) , 10.1016/J.JNONCRYSOL.2008.10.010