Artificial sunlight and ultraviolet light induced photo-epoxidation of propylene over V-Ti/MCM-41 photocatalyst.
作者： Van-Huy Nguyen , Shawn D Lin , Jeffrey Chi-Sheng Wu , Hsunling Bai
DOI: 10.3762/BJNANO.5.67
关键词:
摘要: The light irradiation parameters, including the wavelength spectrum and intensity of source, can significantly influence a photocatalytic reaction. This study examines propylene photo-epoxidation over V-Ti/MCM-41 photocatalyst by using artificial sunlight (Xe lamp with/without an Air Mass 1.5 Global Filter at 1.6/18.5 mW·cm(-2)) ultraviolet (Mercury Arc with different filters in range 0.1-0.8 mW·cm(-2)). is first report to drive propylene. Over photocatalyst, oxide (PO) formation rate 193.0 112.1 µmol·gcat (-1)·h(-1) PO selectivity 35.0 53.7% under UV sunlight, respectively. A normalized utilization (NLU) index defined found correlate well both C3H6 consumption log-log scale. mercury arc better than xenon lamp. remains practically unchanged respect NLU, suggesting that occurs through same mechanism conditions tested this study.
nctu.edu.tw
core.ac.uk
researchgate.net 参考文章(38)
VAN-HUY NGUYEN, HSIANG-YU CHAN, JEFFREY C S WU, Synthesis, characterization and photo-epoxidation performance of Au-loaded photocatalysts Journal of Chemical Sciences. ,vol. 125, pp. 859- 867 ,(2013) , 10.1007/S12039-013-0449-Z
Fumiaki Amano, Tsunehiro Tanaka, Modification of photocatalytic center for photo-epoxidation of propylene by rubidium ion addition to V2O5/SiO2 Catalysis Communications. ,vol. 6, pp. 269- 273 ,(2005) , 10.1016/J.CATCOM.2005.01.007
T. Alexander Nijhuis, Michiel Makkee, Jacob A. Moulijn, Bert M. Weckhuysen, The Production of Propene Oxide: Catalytic Processes and Recent Developments Industrial & Engineering Chemistry Research. ,vol. 45, pp. 3447- 3459 ,(2006) , 10.1021/IE0513090
Fumiaki Amano, Tsuyoshi Yamaguchi, Tsunehiro Tanaka, Photocatalytic oxidation of propylene with molecular oxygen over highly dispersed titanium, vanadium, and chromium oxides on silica. Journal of Physical Chemistry B. ,vol. 110, pp. 281- 288 ,(2006) , 10.1021/JP0557868
Kazuya Nakata, Akira Fujishima, TiO2 photocatalysis: Design and applications Journal of Photochemistry and Photobiology C-photochemistry Reviews. ,vol. 13, pp. 169- 189 ,(2012) , 10.1016/J.JPHOTOCHEMREV.2012.06.001
Hisao Yoshida, Chizu Murata, Tadashi Hattori, Screening Study of Silica-Supported Catalysts for Photoepoxidation of Propene by Molecular Oxygen Journal of Catalysis. ,vol. 194, pp. 364- 372 ,(2000) , 10.1006/JCAT.2000.2952
S.C. Laha, R. Kumar, Promoter-induced synthesis of MCM-41 type mesoporous materials including Ti- and V-MCM-41 and their catalytic properties in oxidation reactions Microporous and Mesoporous Materials. ,vol. 53, pp. 163- 177 ,(2002) , 10.1016/S1387-1811(02)00337-2
K. KOČÍ, K. ZATLOUKALOVÁ, L. OBALOVÁ, S. KREJČÍKOVÁ, Z. LACNÝ, L. ČAPEK, A. HOSPODKOVÁ, O. ŠOLCOVÁ, Wavelength Effect on Photocatalytic Reduction of CO2 by Ag/TiO2 Catalyst Chinese Journal of Catalysis. ,vol. 32, pp. 812- 815 ,(2011) , 10.1016/S1872-2067(10)60199-4
Masato Takeuchi, Junichi Deguchi, Shiro Sakai, Masakazu Anpo, Effect of H2O vapor addition on the photocatalytic oxidation of ethanol, acetaldehyde and acetic acid in the gas phase on TiO2 semiconductor powders Applied Catalysis B-environmental. ,vol. 96, pp. 218- 223 ,(2010) , 10.1016/J.APCATB.2010.02.024
Van-Huy Nguyen, Hsiang-Yu Chan, Jeffrey C.S. Wu, Hsunling Bai, Direct gas-phase photocatalytic epoxidation of propylene with molecular oxygen by photocatalysts Chemical Engineering Journal. ,vol. 179, pp. 285- 294 ,(2012) , 10.1016/J.CEJ.2011.11.003