Synthesis, characterization, and photoactivity of nanosized palladium clusters deposited on titania-modified mesoporous MCM-41

被引:24
作者
Zheng, S [1 ]
Gao, L [1 ]
Zhang, QH [1 ]
Sun, J [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
关键词
D O I
10.1006/jssc.2001.9373
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Nanoparticles of Pd supported in the mesopores of titania-modified MCM-41 have been synthesized by the photodeposition method for the first time and characterized by XPS spectroscopy, N-2 sorption isotherms, XRD, TEM, SEM, diffusion reflectance UV-vis absorption spectra, and Raman spectra. The metallic Pd clusters were dispersed uniformly in the mesopores of titania-modified MCM-41. The photocatalytic activity of Pd-deposited titania-modified MCM-41 has been investigated. For the photoreduction of Cr(VI) to Cr(III), titania-modified MCM-41 exhibited much higher photocatalytic activity than the supports did. (C) 2001 Academic Press.
引用
收藏
页码:138 / 141
页数:4
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