Activated carbons by zinc chloride activation for dye removal — a commentary
Pua Eng Hock, Muhammad Abbas Ahmad Zaini *
Centre of Lipids Engineering & Applied Research, Ibnu-Sina Institute for Scientific & Industrial Research,
Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia,
81310 UTM Johor Bahru, Johor, Malaysia
E-mail: * abbas@cheme.utm.my
Abstract: Zinc chloride is a commonly used activator in chemical activation of activated carbon. Various carbonaceous materials have been studied as potential source of activated carbon. The operating conditions are manipulated with attention to improve the properties and performance of activated carbon in the adsorption of water pollutants. However, the generalized attributes of zinc chloride activation in relation to the adsorptive performance of activated carbon are not well documented in much of published literature. Therefore, the present work is aimed to highlight the activation strategies and mechanisms of zinc chloride activation of activated carbon. The roles of impregnation ratio, period of activation and temperature are discussed to offer some insight into textural characteristics of activated carbon. The case studies on methylene blue adsorption are integrated to shed light on the external factors affecting the adsorption.
Keywords: Activated carbon, adsorption, methylene blue, zinc chloride activation
Full paper in Portable Document Format: acs_0306.pdf
Acta Chimica Slovaca, Vol. 11, No. 2, 2018, pp. 99—106, DOI: 10.2478/acs-2018-0015