Green catalysts for Fenton-like oxidation of Procion Red MX-5B: Influence of the activation method and the reaction parameters on dye removal. Issue 3 (11th February 2017)

• Record Type: Journal Article
• Authors: Palas, Burcu; Ersöz, Gülin; Atalay, Süheyda
• Is Part Of: Separation science and technology. Volume 52:Issue 3(2017)
• Page Start: 404
• Page End: 420
• Publication Date: 2017-02-11
• Subjects: Activated carbon -- activation methods -- Fenton-like oxidation -- reaction kinetics -- walnut shell; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2016.1252399
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: The catalytic activities of the iron catalysts over activated carbon supports prepared by different activation methods in the heterogeneous Fenton-like oxidation of Procion Red MX-5B were investigated. The activated carbons were prepared from walnut shells by applying physical and three chemical activation methods, including HNO3, ZnCl2, and KOH activations to obtain various catalyst supports. KOH-activated carbon catalyst was assessed to be the most efficient one. Under the optimum reaction conditions, 47.5% COD removal, 51.6% degradation, and 91.6% decolorization efficiencies were achieved in the presence of this catalyst. In the kinetic study, the activation energy was evaluated as 47.36 kJ/mol.