Title: Application of new combined method for removal of monochlorobenzene in water media

Authors: Hamideh Samari Jahromi; Hassan Hosseinzadeh Asl

Addresses: Research Institute of Petroleum Industry (RIPI), Environment and Biotechnology Division, West Blvd., Azadi Sports Complex, P.O. Box 14665-1998, Tehran, Iran. ' Department of Industry Engineering, Science and Research Branch, Islamic Azad University, Bandarabbas, P.O. Box 7915893144, Hormozgan, Iran

Abstract: A laboratory study of the removal and decomposition of monochlorobenzen (MCB) as a toxic organic pollutant was carried out under various conditions with Zeolite-Y as adsorbent and Degussa P25 TiO₂ as photocatalyst. Two different oxidation processes leading to the degradation of MCB were compared: nanophotocatalysis in a TiO₂ suspension, and the decomposition of substrate adsorbed on Zeolite in the presence of TiO₂. Both the degradation of MCB and the formation of intermediates were analysed by GC-mass, the total organic carbon content (TOC) was measured to monitor the mineralisation process. The results showed that the removal efficiency of heterogeneous photocatalytic degradation of dissolved (MCB/UV/TiO₂) is less than desorbed MCB (MCB/Zeolite-Y/UV/TiO₂). The results confirmed that the combination of adsorption and nanophotocatalysis studied may be an efficient and economical means of accumulating, removing, and oxidising organic water contaminants, and its application is in accordance with the growing environmental demands.

Keywords: nanophotocatalyst; TiO2; zeolite; monochlorobenzene; MCB; UV light; ultraviolet; titanium dioxide; titania; nanotechnology; total organic carbon; adsorption; water pollution; water quality; mineralisation.

DOI: 10.1504/IJNP.2012.049912

International Journal of Nanoparticles, 2012 Vol.5 No.4, pp.358 - 368

Received: 14 Nov 2011
Accepted: 05 Jan 2012
Published online: 20 Aug 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article