Microwave assisted multiwall carbon nanotubes enhancing Cd(II) adsorption capacity in aqueous media

Mubarak, N.M. and Sahu, J.N. and Abdullah, E.C. and Jayakumar, N.S. and Ganesan, P. (2015) Microwave assisted multiwall carbon nanotubes enhancing Cd(II) adsorption capacity in aqueous media. Journal of Industrial and Engineering Chemistry, 24. pp. 24-33. ISSN 1226-086X, DOI https://doi.org/10.1016/j.jiec.2014.09.005.

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Abstract

Novel multiwall carbon nanotubes (MWCNTs) have been successfully synthesized using tubular microwave chemical vapour deposition technique and proved to be an outstanding adsorbent for the removal of Cd(II) from aqueous solution. The effect of process parameters such as pH, MWCNTs dosage, agitation speed and time were investigated. The maximum adsorption capacities of Cd(II) were found to be 88.62 mg/g and a statistical analysis reveals that the optimum conditions for the highest removal (98) of Cd(II) are at pH 5, MWCNTs dosage 0.1 g, agitation speed and time of 160 rpm and 50 min, respectively with the initial concentration of 10 mg/L. The Langmuir and Freundlich isotherm models match the experimental data very well and adsorption kinetic obeyed pseudo-second order. Our results proved that MWCNTs can be used as an effective Cd(II) adsorbent due to the high adsorption capacity as well as the short adsorption time needed to achieve equilibrium. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Item Type:	Article
Funders:	University of Malaya, Ministry of Higher Education High Impact Research UM.C/HIR/MOHE/ENG/20
Additional Information:	ISI Document Delivery No.: CK4MD Times Cited: 0 Cited Reference Count: 70 Cited References: Agboola AE, 2007, CLEAN TECHNOL ENVIR, V9, P289, DOI 10.1007/s10098-006-0083-2 Alam MZ, 2009, CHEM ENG J, V155, P191, DOI 10.1016/j.cej.2009.07.033 Atieh MA, 2011, PROCEDIA ENVIRON SCI, V4, P281, DOI 10.1016/j.proenv.2011.03.033 Bagheri A, 2012, TALANTA, V89, P455, DOI 10.1016/j.talanta.2011.12.062 Balasubramanian K, 2005, SMALL, V1, P180, DOI 10.1002/smll.200400118 Behbahani M, 2013, MICROCHIM ACTA, V180, P1117, DOI 10.1007/s00604-013-1036-1 Behbahani M, 2014, J IND ENG CHEM, V20, P2248, DOI 10.1016/j.jiec.2013.09.057 Behbahani M, 2013, FOOD CHEM, V141, P48, DOI 10.1016/j.foodchem.2013.03.011 Chen CL, 2009, J HAZARD MATER, V164, P923, DOI 10.1016/j.jhazmat.2008.08.089 Chen CL, 2006, IND ENG CHEM RES, V45, P9144, DOI 10.1021/ie060791z Chen RJ, 2003, P NATL ACAD SCI USA, V100, P4984, DOI 10.1073/pnas.0837064100 Chen XH, 2002, MATER LETT, V57, P734, DOI 10.1016/S0167-577X(02)00863-7 Cho H.-H., 2009, LANGMUIR, V26, P967 Das N, 2006, CARBON, V44, P2236, DOI 10.1016/j.carbon.2006.02.040 Economopoulos SP, 2011, CURR ORG CHEM, V15, P1121 Gao ZM, 2009, J HAZARD MATER, V167, P357, DOI 10.1016/j.jhazmat.2009.01.050 Gunay A, 2007, J HAZARD MATER, V146, P362, DOI 10.1016/j.jhazmat.2006.12.034 Ho YS, 1999, PROCESS BIOCHEM, V34, P451, DOI 10.1016/S0032-9592(98)00112-5 Ho YS, 2006, WATER RES, V40, P119, DOI 10.1016/j.watres.2005.10.040 Hsieh SH, 2007, J UNIV SCI TECHNOL B, V14, P77, DOI 10.1016/S1005-8850(07)60016-4 Hsieh SH, 2006, J MATER RES, V21, P1269, DOI 10.1557/JMR.2006.0155 Huang JH, 2003, MICROELECTRON ENG, V66, P10, DOI 10.1016/S0167-9317(03)00018-2 Huang W, 2003, CARBON, V41, P2585, DOI 10.1016/S0008-6223(03)00330-0 Hyung H, 2008, ENVIRON SCI TECHNOL, V42, P4416, DOI 10.1021/es702916h Jiang W., 2004, J MANUF SCI E-T ASME, V127, P703 Kabbashi N. 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Engineering, Faculty /I-7935-2015 Engineering, Faculty /0000-0002-4848-7052 University of Malaya, Ministry of Higher Education High Impact Research UM.C/HIR/MOHE/ENG/20 This research is financially supported by University of Malaya, Ministry of Higher Education High Impact Research (UM.C/HIR/MOHE/ENG/20). 0 ELSEVIER SCIENCE INC NEW YORK J IND ENG CHEM
Uncontrolled Keywords:	Microwave, heavy metal, adsorption, separation, mwcnts, cadmium, chemical-vapor-deposition, solid-phase extraction, heavy-metal ions, activated carbon, lead removal, chromium vi, water, functionalization, equilibrium, cadmium,
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	25 Apr 2016 03:19
Last Modified:	21 Mar 2019 07:00
URI:	http://eprints.um.edu.my/id/eprint/15830

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