Photocatalytic activity of binary and ternary SnO2–ZnO–ZnWO4 nanocomposites
作者： Abdessalem Hamrouni , Noomen Moussa , Agatino Di Paola , Leonardo Palmisano , Ammar Houas
DOI: 10.1016/J.JPHOTOCHEM.2015.05.001
关键词:
摘要: Abstract Binary and ternary SnO 2 –ZnO–ZnWO 4 nanocomposites were prepared by a sol–gel route. The photocatalytic activity of the samples was evaluated through decomposition 4-nitrophenol partial oxidation 4-methoxybenzyl alcohol to p -anisaldehyde. All mixed catalysts revealed higher photoactivity than bare ZnO, or ZnWO best performances exhibited binary nanocomposites. high explained presence heterojunctions among different semiconductors that enhance separation photogenerated electron–hole pairs, hindering their recombination. As general consideration, an essential role played electronic features in degradation reactions whereas surface properties key factors for selective formation
elsevier.com
sci-hub.se 参考文章(66)
Aaron Dodd, Allan McKinley, Martin Saunders, Takuya Tsuzuki, Mechanochemical synthesis of nanocrystalline SnO2–ZnO photocatalysts Nanotechnology. ,vol. 17, pp. 692- 698 ,(2006) , 10.1088/0957-4484/17/3/013
AM Roy, GC De, N Sasmal, SS Bhattacharyya, None, Determination of the flatband potential of semiconductor particles in suspension by photovoltage measurement International Journal of Hydrogen Energy. ,vol. 20, pp. 627- 630 ,(1995) , 10.1016/0360-3199(94)00105-9
Jinhua Li, Shubin Lv, Yanbiao Liu, Jing Bai, Baoxue Zhou, Xiaofang Hu, None, Photoeletrocatalytic activity of an n-ZnO/p-Cu2O/n-TNA ternary heterojunction electrode for tetracycline degradation. Journal of Hazardous Materials. ,vol. 262, pp. 482- 488 ,(2013) , 10.1016/J.JHAZMAT.2013.09.002
S Sakthivel, S-U Geissen, DW Bahnemann, V Murugesan, A Vogelpohl, None, Enhancement of photocatalytic activity by semiconductor heterojunctions: α-Fe2O3, WO3 and CdS deposited on ZnO Journal of Photochemistry and Photobiology A: Chemistry. ,vol. 148, pp. 283- 293 ,(2002) , 10.1016/S1010-6030(02)00055-2
Abdessalem Hamrouni, Noomen Moussa, Francesco Parrino, Agatino Di Paola, Ammar Houas, Leonardo Palmisano, Sol–gel synthesis and photocatalytic activity of ZnO–SnO2 nanocomposites Journal of Molecular Catalysis A: Chemical. ,vol. 390, pp. 133- 141 ,(2014) , 10.1016/J.MOLCATA.2014.03.018
Shanshan Xiao, Lei Zhao, Xuning Leng, Xingyou Lang, Jianshe Lian, Synthesis of amorphous TiO2 modified ZnO nanorod film with enhanced photocatalytic properties Applied Surface Science. ,vol. 299, pp. 97- 104 ,(2014) , 10.1016/J.APSUSC.2014.01.192
Lirong Zheng, Yuanhui Zheng, Chongqi Chen, Yingying Zhan, Xingyi Lin, Qi Zheng, Kemei Wei, Jiefang Zhu, Network structured SnO2/ZnO heterojunction nanocatalyst with high photocatalytic activity. Inorganic Chemistry. ,vol. 48, pp. 1819- 1825 ,(2009) , 10.1021/IC802293P
Peter Wardman, Reduction Potentials of One‐Electron Couples Involving Free Radicals in Aqueous Solution Journal of Physical and Chemical Reference Data. ,vol. 18, pp. 1637- 1755 ,(1989) , 10.1063/1.555843
Abdessalem Hamrouni, Noomen Moussa, Agatino Di Paola, Francesco Parrino, Ammar Houas, Leonardo Palmisano, Characterization and photoactivity of coupled ZnO–ZnWO4 catalysts prepared by a sol–gel method Applied Catalysis B-environmental. ,vol. 154, pp. 379- 385 ,(2014) , 10.1016/J.APCATB.2014.02.042
Cun Wang, Xinming Wang, Bo-Qing Xu, Jincai Zhao, Bixian Mai, Ping’an Peng, Guoying Sheng, Jiamo Fu, Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation Journal of Photochemistry and Photobiology A-chemistry. ,vol. 168, pp. 47- 52 ,(2004) , 10.1016/J.JPHOTOCHEM.2004.05.014