期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 20, 期 4, 页码 1861-1868出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.09.003
关键词
Photocatalysis; ZnO nanoparticles; Carbon black; Experimental design
资金
- Tarbiat Modares University
- Arak University of Medical Sciences
- University of Tabriz
A rectangular photo-reactor equipped with carbon black (CB)/ZnO nanocomposite film was used for photodegradation of methyl orange. Central composite design was used for evaluation of the effects of initial dye concentration, reaction time, CB/ZnO ratio and initial pH. The high correlation coefficients (R-2 = 0.954 and adjusted R-2 = 0.912) obtained by analysis of variance (ANOVA) demonstrated close fit between the predicted and experimental values. The initial dye concentration, reaction time, CB/ZnO ratio and initial pH were 13 mg/L, 95 min, 0.05 and 5, respectively for 80% decolorization efficiency. The result of TOC analysis showed that the process allowed 55.79% mineralization under optimized conditions. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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