Activity and stability of (Al-Fe) pillared montmorillonite catalysts for wet hydrogen peroxide oxidation of p-coumaric acid
p-Coumaric acid oxidation by hydrogen peroxide was performed on (Al-Fe)-pillared montmorillonite. The catalysts were characterized by DRX, TPR, BET surface area and chemical analysis techniques. The (Al-Fe) pillared clay has shown good performances towards the total p-coumaric acid oxidation , without significant leaching of Fe ions, in rather mild experimental conditions (atmospheric pressure, T=70°C) and with low excess of hydrogen peroxide. p-Coumaric acid was rapidly converted, mainly to CO2. The effects of catalyst loading, H2O2 concentration, temperature and analyte concentration on p-coumaric removal and total organic carbon (TOC) conversion, were investigated. A plausible explanation is proposed for the influence of these parameters, both mechanistic and kinetic factors being accounted for.
W. Najjar S. Perathoner G. Centi A. Ghorbel
Laboratoire de chimie des matériaux et catalyse. Département de chimie. Faculté des Sciences de Tuni Department of Industrial Chemistry and Engineering of Materials, University of Messina,Salita speron
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）