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Preliminary study of novel coal spills-based physical activated carbon for copper ions adsorption in aqueous solution: kinetics and isotherms

Ramadhan, Dadang and Mahidin, Mahidin and Muslim, Abrar and Aprilia, Sri and Arahman, Nasrul and Saiful, Saiful and Mel, Maizirwan (2020) Preliminary study of novel coal spills-based physical activated carbon for copper ions adsorption in aqueous solution: kinetics and isotherms. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 71 (1). pp. 28-38. ISSN 2289-7879

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This study proposed a novel activated carbon which was prepared from coal spills by physical activation. It was activated in tube furnace at 500 °C with nitrogen injection. Based on Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy analyses, the coal spills-based activated carbon (CSFAC) was expected to have more pores and cavities compared to the untreated coal spills (UCS). This preliminary study focused on adsorption kinetics and isotherms by investigating separately the effects of two independent variables i.e. contact time and initial Cu(II) ions concentration. The temperature of ion solution was set at 30 °C (1 atm) and initial pH 5. The Cu (II) ions adsorbed onto the CSFAC and USC had best fitting to the pseudo-second-order kinetics model with R2 being 1.000 and 0.978, respectively. The Cu(II) ions equilibrium adsorption capacity and adsorption rate of the CSFAC were 90.909 mg/g and 0.093 g/mg. min respectively and they tracked well Freundlich adsorption isotherms with R2 being 0.811 and 0.917, respectively. The Freundlich-based pore volume and adsorption intensity were 3.861 L/mg and 1.132 respectively. The Brunauer-Emmett-Teller surface area and total pore volume of the CSFAC were approximately 50.848 m/g and 0.018 cc/g respectively. Based on this research, CSFAC was found to be a good potential candidate to be used in water treatment in the near future.

Item Type: Article (Journal)
Additional Information: 4085/86762
Uncontrolled Keywords: Activated carbon, Adsorption, Coal spills, Copper, Isotherms, Kinetics
Subjects: T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP315 Fuel
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Kulliyyah of Engineering
Depositing User: Dr Maizirwan Mel
Date Deposited: 29 Dec 2020 10:59
Last Modified: 29 Dec 2020 10:59
URI: http://irep.iium.edu.my/id/eprint/86762

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