Reuse potential of carbon nanotubes in removing cadmium from water

Al-Mamun, Abdullah and Al-Khatib, Ma An Fahmi Rashid and Danial, Rabiatul Adawiyah and Salihu, Aliyu and Alam, Md Zahangir (2018) Reuse potential of carbon nanotubes in removing cadmium from water. Nanoscience & Nanotechnology-Asia, 8 (2). pp. 193-198. ISSN 2210-6812 E-ISSN 2210-6820

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Abstract

This study was aimed at determining the optimum condition for desorption of cadmium loaded carbon nanotubes (cCNTs) for re-adsorption of the same metal ion. Two independent parameters (contact time and HCl concentrations) were subjected to statistical optimization by face centered central composite design (FCCCD). Maximum desorption cCNT was achieved under the optimized conditions of pH 1.40 and 130 min contact time. The coefficient of determination (R2) of the developed model was found to be 0.988, indicating the fitness of the experimental and predicted responses. Following the desorption experiments, the efficiency of re-adsorption of Cd2+ by the CNT was 61.08%. The reduced re-adsorption capacity of CNT could be linked to modification of its sorption sites based on acid desorption process.

Item Type:	Article (Journal)
Additional Information:	5174/59683
Uncontrolled Keywords:	adsorption, cadmium, carbon nanotubes, desorption, optimization, reuse
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD169 Environmental protection
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Civil Engineering Kulliyyah of Engineering
Depositing User:	Dr Abdullah Al Mamun
Date Deposited:	30 Nov 2017 10:23
Last Modified:	14 Mar 2019 12:57
URI:	http://irep.iium.edu.my/id/eprint/59683

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