Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 20, Issue 3, Pages 937-946Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.06.026
Keywords
Heterogeneous catalysis; 4-Nitrophenol; ZnO; Nano-clinoptilolite zeolite
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Photocatalytic degradation of 4-nitrophenol aqueous solution was investigated using ZnO/nano-clinoptilolite zeolite under UV irradiation. Nano-powders of clinoptilolite were prepared using a planetary ball mill mechanically method. The photocatalyst was prepared by ion exchanging of nano-clinoptilolite in a 0.1 M zinc nitrate aqueous solution for 24 h followed by calcination at 450 degrees C for 12 h. Samples were characterized by XRD, FT-IR, DRS, AAS, TG/DTG, SEM, TEM and BET. Effects of various key operating parameters on the degradation rate were studied. The COD and HPLC tests were also used to confirm the degradation extent of the pollutant. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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