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J Hazard Mater

Title:		Total oxidation of toluene on Pt/CeO2-ZrO2-Bi2O3/gamma-Al2O3 catalysts prepared in the presence of polyvinyl pyrrolidone
Author(s):		Masui T; Imadzu H; Matsuyama N; Imanaka N;
Address:		"Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan"
Journal Title:		J Hazard Mater
Year:		2010
Volume:		20091126
Issue:		1-Mar
Page Number:		1106 - 1109
DOI:		10.1016/j.jhazmat.2009.11.108
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Pt/CeO(2)-ZrO(2)-Bi(2)O(3)/gamma-Al(2)O(3) (Pt/CZB/Al(2)O(3)) catalysts for the catalytic combustion of toluene, which is one of the volatile organic compounds (VOCs), were prepared by the wet impregnation method in the presence of polyvinyl pyrrolidone (PVP). X-ray powder diffraction, transmission electron microscopy, and BET specific surface area measurement using N(2) adsorption have been used to characterize the catalysts. The catalytic test was conducted from room temperature in a flow of 900 ppm of toluene in air and gas hourly space velocity (GHSV) of 8000 h(-1). The catalytic activity was evaluated in terms of C(7)H(8) conversion and the gas composition after the reaction was analyzed using two gas chromatographs with a flame ionization detector (FID) and a thermal conductivity detector (TCD). The Pt/CZB/Al(2)O(3) catalysts are specific for the total toluene oxidation and CO and any toluene-derivative compounds were not detected as by-products. The specific surface area of the catalysts was increased by the addition of PVP in the preparation process. By the optimization of the amount of platinum, complete oxidation of toluene was realized at a temperature as low as 120 degrees C on a 7 wt%Pt/16 wt%Ce(0.64)Zr(0.15)Bi(0.21)O(1.895)/gamma-Al(2)O(3) catalyst"
Keywords:		Air Pollutants/*chemistry Aluminum Oxide Bismuth Boron Compounds Catalysis Cerium Incineration Oxidation-Reduction Platinum Polyvinyls Pyrrolidinones/*chemistry Toluene/*chemistry Volatile Organic Compounds/*chemistry Zirconium;
Notes:		"MedlineMasui, Toshiyuki Imadzu, Hayato Matsuyama, Naoto Imanaka, Nobuhito eng Research Support, Non-U.S. Gov't Netherlands 2009/12/22 J Hazard Mater. 2010 Apr 15; 176(1-3):1106-9. doi: 10.1016/j.jhazmat.2009.11.108. Epub 2009 Nov 26"