Indium hydroxide: A highly active and low deactivated catalyst for photoinduced oxidation of benzene
Open Access
- 5 April 2007
- journal article
- Published by Cellule MathDoc/Centre Mersenne in Comptes Rendus. Chimie
- Vol. 11 (1-2), 101-106
- https://doi.org/10.1016/j.crci.2007.02.012
Abstract
A novel photocatalyst In(OH)3 was synthesized by peptization of a colloidal precipitate under ultrasound radiation. The photocatalyst was characterized by N2 adsorption, XPS, XRD, UV–vis DRS, and FTIR technologies. The photocatalyst sample is highly photoactive and stable for gas-phase removal of benzene under UV irradiation, even in dry O2 atmosphere. Both the conversion of benzene and the mineralization yield are notably accelerated, as compared to the widely used photocatalyst – titania (Degussa P25). In(OH)3 is active even after 30 h of photoreaction. The maximal conversion and mineralization ratio of benzene achieved are 33.4% and 56%, respectively, which is much higher than that obtained with TiO2 (9.5% and 24%). The high activity and durability of the In(OH)3 can be ascribed to the high hole oxidation potential and carbon deposits formed uneasily on the catalyst surface.Keywords
This publication has 17 references indexed in Scilit:
- Hematotoxicity in Workers Exposed to Low Levels of BenzeneScience, 2004
- Improvement of Catalyst Durability by Deposition of Rh on TiO2 in Photooxidation of Aromatic CompoundsEnvironmental Science & Technology, 2003
- A Two-Site kinetic model simulating apparent deactivation during photocatalytic oxidation of aromatics on titanium dioxide (TiO2)Applied Catalysis B: Environment and Energy, 2003
- Heterogeneous photocatalytic oxidation of benzene, toluene, cyclohexene and cyclohexane in humidified air: comparison of decomposition behavior on photoirradiated TiO2 catalystApplied Catalysis B: Environment and Energy, 2002
- Complete Oxidation of Benzene in Gas Phase by Platinized Titania PhotocatalystsEnvironmental Science & Technology, 2001
- Photocatalytic decomposition of benzene over TiO2 in a humidified airstreamPhysical Chemistry Chemical Physics, 1999
- Benzene and toluene gas-phase photocatalytic degradation over H2O and HCL pretreated TiO2: by-products and mechanismsJournal of Photochemistry and Photobiology A: Chemistry, 1998
- Oxidative photocatalytic degradation of benzene vapor over TiO2Journal of Photochemistry and Photobiology A: Chemistry, 1998
- Heterogeneous Photocatalytic Oxidation of Trichloroethylene and Toluene Mixtures in Air: Kinetic Promotion and Inhibition, Time-Dependent Catalyst ActivityJournal of Catalysis, 1996
- The gas-phase photocatalytic mineralization of benzene on porous titania-based catalystsApplied Catalysis B: Environment and Energy, 1995