Photocatalytic degradation of endocrine disruptor Bisphenol-A in the presence of prepared CexZn1-xO nanocomposites under irradiation of sunlight.

Autor: Kamaraj M; Department of Biotechnology, Dr.N.G.P. Arts and Science College, Coimbatore 641048, Tamil Nadu, India. Electronic address: drkamarajm@gmail.com., Ranjith KS; Advanced Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India., Sivaraj R; Department of Biotechnology, School of Life Sciences, Karpagam University, Coimbatore 641021, Tamil Nadu, India., Kumar RT; Advanced Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India., Abdul Salam H; Department of Biotechnology, School of Life Sciences, Karpagam University, Coimbatore 641021, Tamil Nadu, India.
Jazyk: angličtina
Zdroj: Journal of environmental sciences (China) [J Environ Sci (China)] 2014 Nov 01; Vol. 26 (11), pp. 2362-8. Date of Electronic Publication: 2014 Sep 29.
DOI: 10.1016/j.jes.2014.09.022
Abstrakt: Photocatalytic degradation of Bisphenol A (BPA), a representative endocrine disruptor chemical, was carried out under irradiation of sunlight in the presence of CexZn1-xO nanophotocatalyst. Cerium (Ce) ions were successfully incorporated into the bulk lattice of ZnO by simple co-precipitation process. The CexZn1-xO composite nanostructures exhibited higher photocatalytic efficiency than pure ZnO in the degradation of BPA under sunlight irradiation and nearly complete mineralization of BPA was achieved. The degradation rate was strongly dependent on factors such as the size and structure of catalyst, doping material concentration, BPA concentration, catalyst load, irradiation time and pH levels. This work suggested that the CexZn1-xO assisted photocatalytic degradation is a versatile, economic, environmentally benign and efficient method for BPA removal in the aqueous environment.
(Copyright © 2014. Published by Elsevier B.V.)
Databáze: MEDLINE
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