A highly efficient activated carbon by chemical activation method for adsorption of paraquat (toxin)

Rahman, Md. Mokhlesur and Awang, Mohamed and Shajahan, Mohosina and Abdul Razak, Tariq and Yunus, Kamaruzzaman (2014) A highly efficient activated carbon by chemical activation method for adsorption of paraquat (toxin). Materials Science Forum, 773/74. pp. 479-485. ISSN 0255-5476

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Abstract

The ambient condition for preparing the highly efficient activated carbon has been investigated in this work. The effects of different activation temperatures on the pore structure and surface morphology of highly efficient activated carbon (AC) derived from waste palm shell by chemical activation method using phosphoric acid as activating agent were studied. For activation, different activation temperatures in the range of 5500C-6500C were carried out. Activated carbon with well developed pore size were produced at activation temperature of 6000C for 2 hours. At this temperature the Brunauer , Emmett and Teller (BET) surface areas are 1287 m2g-1, the total pore volume for adsorption and desorption are 0.65209 cm3 g-1. Scanning Electron Microscope also confirmed the porosity of the highly efficient activated carbon. Finally it was tested in vitro to determine its adsorbing capacity for paraquat as a toxin. For optimum adsorption ability of activated carbon for paraquat, 0.9% NaCl solution is the most suitable solvent. The paraquat preferentially adsorbed onto the activated carbon in NaCl solution. The adsorption ability of the activated carbon (the amount adsorbed) for paraquat observed to be 99.9 mg g-1.

Item Type:	Article (Journal)
Additional Information:	5269/32472
Uncontrolled Keywords:	ambient condition, highly efficient activated carbon (AC), NaCl Solution, Paraquat, adsorption ability
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry Kulliyyah of Science
Depositing User:	Dr Mohd Mokhlesur Rahman
Date Deposited:	31 Oct 2013 10:33
Last Modified:	08 Apr 2014 16:12
URI:	http://irep.iium.edu.my/id/eprint/32472

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