Catalytic degradation of caffeine in aqueous solutions by cobalt-MCM41 activation of peroxymonosulfate

作者: Fei Qi , Wei Chu , Bingbing Xu

DOI: 10.1016/J.APCATB.2013.01.038

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摘要: In this study, the performance of caffeine degradation and mineralization in aqueous phase by a catalyst that was prepared by incorporating cobalt into the structure of MCM41 (ie Co-MCM41) in activating peroxymonosulfate (PMS) was explored. Experimental results showed that Co-MCM41 activated PMS not only degraded caffeine, but also mineralized the corresponding intermediates successfully. The surface and structure properties of Co-MCM41 were characterized by several analytical methods. The leaching of cobalt ions in …

参考文章(54)
George V. Buxton, Clive L. Greenstock, W. Phillips Helman, Alberta B. Ross, Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution Journal of Physical and Chemical Reference Data. ,vol. 17, pp. 513- 886 ,(1988) , 10.1063/1.555805
A. G. Trovó, T. F. S. Silva, O. Gomes Jr., A. E. H. MACHADO, W. Borges Neto, P. S. Muller Jr., D. Daniel, Degradation of caffeine by photo-Fenton process: optimization of treatment conditions using experimental design. Chemosphere. ,vol. 90, pp. 170- 175 ,(2013) , 10.1016/J.CHEMOSPHERE.2012.06.022
Javier Rivas, Olga Gimeno, Teresa Borralho, José Sagasti, UV-C and UV-C/peroxide elimination of selected pharmaceuticals in secondary effluents Desalination. ,vol. 279, pp. 115- 120 ,(2011) , 10.1016/J.DESAL.2011.05.066
I. Zacharaki, C.G. Kontoyannis, S. Boghosian, A. Lycourghiotis, Ch. Kordulis, Cobalt oxide supported on alumina catalysts prepared by various methods for use in catalytic afterburner of PEM fuel cell Catalysis Today. ,vol. 143, pp. 38- 44 ,(2009) , 10.1016/J.CATTOD.2008.09.026
Guanliang Zhou, Hongqi Sun, Shaobin Wang, H. Ming Ang, Moses O. Tadé, Titanate supported cobalt catalysts for photochemical oxidation of phenol under visible light irradiations Separation and Purification Technology. ,vol. 80, pp. 626- 634 ,(2011) , 10.1016/J.SEPPUR.2011.06.021
N. Klamerth, N. Miranda, S. Malato, A. Agüera, A.R. Fernández-Alba, M.I. Maldonado, J.M. Coronado, Degradation of emerging contaminants at low concentrations in MWTPs effluents with mild solar photo-Fenton and TiO2 Catalysis Today. ,vol. 144, pp. 124- 130 ,(2009) , 10.1016/J.CATTOD.2009.01.024
J. Herney-Ramirez, Miguel A. Vicente, Luis M. Madeira, Heterogeneous photo-Fenton oxidation with pillared clay-based catalysts for wastewater treatment: A review Applied Catalysis B-environmental. ,vol. 98, pp. 10- 26 ,(2010) , 10.1016/J.APCATB.2010.05.004