期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 35, 期 -, 页码 167-176出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.12.028
关键词
Sonication; Sonocatalyst; Nanocatalyst; Reactive Orange 29; Kinetic modeling
资金
- University of Tabriz, Iran
- National Research Foundation of Korea [NRF-2015-002423]
The sonochemically synthesized Ho-doped ZnO nanoparticles were characterized by XRD, SEM, TEM, and XPS techniques. The sonocatalytic degradation of Reactive Orange 29 (RO29) was greater than that with sonolysis alone. DE% declines with the addition of chloride, carbonate, sulfate, and tert-butanol as radical scavengers. Addition of potassium periodate, peroxydisulfate, and hydrogen peroxide as enhancers improves DE%. The results demonstrate proper reusability of the doped sonocatalyst. Degradation intermediates were identified by gas chromatography-mass spectrometry (GC-MS). Using nonlinear regression analysis, an empirical kinetic model was developed to predict the pseudo-first order constants (kapp) as a function of the operational parameters. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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