Removal of Rhodamine 6G induced by laser and catalyzed by Pt/WO3 nanocomposite

被引：58
|
作者：
Qamar, M. [1 ]
Gondal, M. A. [1 ,2 ]
Yamani, Z. H. [1 ,2 ]
机构：
[1] King Fahd Univ Petr & Minerals, Ctr Excellence Nanotechnol, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals, Dept Phys, Laser Res Grp, Dhahran 31261, Saudi Arabia
来源：
CATALYSIS COMMUNICATIONS | 2010年 / 11卷 / 08期
关键词：
WO3; Photocatalysis; Nanocomposites; Platinum; Wastewater treatment; LIGHT-DRIVEN PHOTOCATALYSTS; TUNGSTEN-OXIDE; TITANIUM-DIOXIDE; AQUEOUS-SOLUTION; TIO2; DEGRADATION; PLATINUM; WATER; NANOPARTICLES; MECHANISMS;
D O I：
10.1016/j.catcom.2010.02.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The present study deals with the surface modification of nano-structured tungsten oxide (WO3) with nanoparticles of platinum (Pt) by applying a novel laser-based photocatalytic process. Microscopic studies revealed that Pt particles were homogeneously dispersed with narrow size distribution (2-4 nm) onto the surface of WO3 within a short time of laser irradiation while XPS studies indicated that the deposited Pt nanoparticles were in the metallic form. Nano-structured bimetallic assemblies that consisted of WO3 and Pt particles showed enhanced photocatalytic removal of Rhodamine 6G as compared to pure WO3. Influence of laser irradiation time and platinum content has been studied. The Pt/WO3 nanocomposites were also prepared using conventional setup and the resulting photocatalytic activity of the catalysts were compared under both the light sources. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：768 / 772
页数：5
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