Incorporated ZnO onto nano clinoptilolite particles as the active centers in the photodegradation of phenylhydrazine

ZnO was incorporated into nano particles of clinoptiloite by ion exchanging the zeolite in a zinc nitrate aqueous solution followed by calcinations process. All raw and modified samples were characterized by XRD, FT-IR, DRS, TG-DTG, SEM, BET and TEM. The prepared catalyst was used in the photocatalytic degradation of phenylhydrazine (PHZ) and the best experimental parameters were obtained as: 0.25 g L-1 of the catalyst, 20 ppm pollutant concentration and pH = 8. The degradation extent was monitored by UV-vis spectroscopy and the results were confirmed by HPLC and the chemical oxygen demand (COD). (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.