Methylene blue and Congo red removal by activated carbons: A current literature

Author:

Hao Yeo Shi12,Othman Norasikin12,Zaini Muhammad Abbas Ahmad12

Affiliation:

1. Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR) , Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor , Malaysia

2. Department of Chemical Engineering, Faculty of Chemical & Energy Engineering , Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor , Malaysia

Abstract

Abstract Dye is a major source of water pollution. This mini-review highlights the origin of dye, its removal strategies, and the recent literature of methylene blue and Congo red adsorption by activated carbons. Adsorption is a unique process that relies upon the physicochemical properties of the activated carbon and the inherent characteristics of dye. Also, factors affecting adsorption, such as contact time, temperature, and concentration, were discussed to gain insight into dye removal mechanisms.

Publisher

Walter de Gruyter GmbH

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