Affiliation:
1. Chemistry Division Bhabha Atomic Research Centre Mumbai 400 085 India
2. Homi Bhabha National Institute Mumbai 400 094 India
Abstract
AbstractCatalysts with V2O5, WO3 and V2O5−WO3 dispersed over TiO2 were synthesized using sol‐gel technique and thoroughly characterized by various techniques. The catalysts were evaluated for degradation of ortho‐dichloro benzene (o‐DCB) in air/helium, a representative probe molecule for polychlorinated dibenzo‐para‐dioxin and polychlorinated dibenzofuran by employing in situ Fourier‐transform infrared spectroscopy (FT‐IR spectroscopy). Different intermediate species formed on the surface of the TiO2 supported catalysts through of interaction of sorbate molecules with the lattice and/or gaseous oxygen were investigated in detail. Analysis of vibrational bands, observed during sorption of o‐DCB and o‐DCB‐air mixture as a function of temperature over these catalysts, delineated the role of surface intermediate species such as phenolate, enolates, maleates, carboxylates, carbonates in mineralization of o‐DCB. Nature and stability of intermediate species, found to be different over these catalysts, were able to elucidate the catalytic activity trend.
Reference62 articles.
1. S. Safe O. Hutzinger T. A. Hill Polychlorinated Dibenzo-p-dioxins and -furans (PCDDs/PCDFs): Sources and Environmental Impact Epidemiology Mechanisms of Action Health Risks Springer Berlin Heidelberg Berlin Germany 2012.
2. R. Stringer P. Johnston Chlorine and the Environment: An Overview of the Chlorine Industry Springer Dordrecht Netherlands 2011.
3. S. L. Anttila P. Boffetta Occupational Cancers Springer London England 2014.; A. Action Chlorophenols Advances in Research and Application: Scholarly Paper Wiley Hoboken NJ 2012.
4. A review of persistent organic pollutants: dioxins, furans, and their associated nitrogenated analogues
5. Dioxins sources and current remediation technologies — A review
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献