Please use this identifier to cite or link to this item: https://idr.l3.nitk.ac.in/jspui/handle/123456789/15743
Title: Photocatalytic degradation of p-nitrophenol using biologically synthesized ZnO nanoparticles
Authors: Kadam V.V.
Shanmugam S.D.
Ettiyappan J.P.
Balakrishnan R.M.
Issue Date: 2021
Citation: Environmental Science and Pollution Research Vol. 28 , 10 , p. 12119 - 12130
Abstract: The present work deals with the photocatalytic degradation of p-nitrophenol as it is a United States Environmental Protection Agency-listed priority pollutant and has adverse environmental and health effects. To eradicate the detrimental environmental impact of p-nitrophenol, the biologically synthesized ZnO nanoparticles were used as a photocatalyst. The degradation of p-nitrophenol was confirmed by decreasing the absorbance value at a characteristic wavelength of 317 nm using the UV-vis spectrophotometer. Reaction parameters such as ZnO photocatalyst concentration of 0.1 g/L at pH 11 in the presence of H2O2 (5 mM) were found to be optimum conditions for p-nitrophenol degradation. The photocatalytic degradation was slowly enhanced in the presence of H2O2 as an electron acceptor. The kinetics of nitrophenol degradation was studied, which follows the pseudo-first-order reaction. The photocatalytic degradation of p-nitrophenol was characterized by using total organic carbon, chemical oxygen demand, and high-performance liquid chromatography analyses. This method is found to be effective as it is environmentally friendly, free of toxic chemicals. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
URI: https://doi.org/10.1007/s11356-020-10833-w
http://idr.nitk.ac.in/jspui/handle/123456789/15743
Appears in Collections:1. Journal Articles

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