Bulletin of Chemical Reaction Engineering & Catalysis
2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)

Silica-Supported Co3O4 Nanoparticles as a Recyclable Catalyst for Rapid Degradation of Azodye

Ali Baghban (Department of Chemistry, Faculty of Science, Payame Noor University, P.O. Box 19395-3697, Tehran)
Esmail Doustkhah (Young Researchers and Elite Club, Maragheh Branch, Islamic Azad University, Maragheh)
Sadegh Rostamnia (Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box. 55181-83111, Maragheh)
Khadijeh Ojaghi Aghbash (Department of Chemistry, Faculty of Science, Payame Noor University, P.O. Box 19395-3697, Tehran)



Article Info

Publish Date
11 Oct 2016

Abstract

In this paper, silica nanoparticles with particle size of ~ 10-20 nm were selected as a support for the synthesis of Co3O4 nanoparticles by impregnation of silica nanoparticles in solution of Co(II) in a specific concentrations and then calcination to 800 oC. This nanocomposite was then, used as a catalyst for oxidative degradation of methyl orange (MO) with ammonium persulfate in aqueous media. Effect of pH, temperature, contact time, amount of oxidant and catalyst were studied in the presence of manuscript. Scanning electron microscope (SEM), electron dispersive spectroscopy (EDS), FT-IR, and ICP-AES analyses were used for analysis of silica-supported Co3O4 (Co3O4/SiO2). Treating MO with ammonium persulfate in the presence of Co3O4/SiO2 led to complete degradation of MO under the optimized conditions. Also, the catalyst exhibited recyclability at least over 10 consecutive runs. 

Copyrights © 2016






Journal Info

Abbrev

bcrec

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

Bulletin of Chemical Reaction Engineering & Catalysis (e-ISSN: 1978-2993), an international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics studies, and chemical reaction ...