Transition metal oxide (TiO2, Fe2O3, CoO) loaded MCM-41 and MCM-48 were synthesized by a two-step surfactant based process. Nanoporous, high surface area compounds were obtained after calcination of the compounds. The catalysts were characterized by SEM, XRD, XPS, UV-vis and BET surface area analysis. The catalysts showed high activity for the photocatalytic degradation of both anionic and cationic dyes. The degradation of the dyes was described using Langmuir-Hinshelwood kinetics and the associated rate parameters were determined. © 2011 Indian Academy of Sciences.

Giridhar Madras

Department of Chemical Engineering

D. Jyothi

P.A. Deshpande

B.R. Venugopal

S. Chandrasekaran

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IIT Hyderabad

Journal of Chemical Sciences

Transition metal oxide loaded MCM catalysts for photocatalytic degradation of dyes