High-performance removal of toxic phenol by single-walled and multi-walled carbon nanotubes: Kinetics, adsorption, mechanism and optimization studies
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Authors
Dehghani, M.
Mostofi, M.
Alimohammadi, M.
McKay, G.
Yetilmezsoy, K.
Albadarin, A.
Heibati, B.
AlGhouti, M.
Mujawar, Mubarak
Sahu, J.
Date
2016Type
Journal Article
Metadata
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Dehghani, M. and Mostofi, M. and Alimohammadi, M. and McKay, G. and Yetilmezsoy, K. and Albadarin, A. and Heibati, B. et al. 2016. High-performance removal of toxic phenol by single-walled and multi-walled carbon nanotubes: Kinetics, adsorption, mechanism and optimization studies. Journal of Industrial and Engineering Chemistry. 35: pp. 63-74.
Source Title
Journal of Industrial and Engineering Chemistry
ISSN
School
Curtin Sarawak
Collection
Abstract
The adsorption capabilities of two nano-sized adsorbents: multi-walled carbon nanotubes (MWCNTs) and single-walled carbon nanotubes (SWCNTs) were investigated for the removal of toxic phenol. The maximum adsorption capacities of MWCNTs and SWCNTs were determined as 64.60 and 50.51 mg/g, respectively. Adsorption kinetics followed the pseudo-second order model for both adsorbents. The optimum conditions using SWCNTs and MWCNTs were pH 6.57 and 4.65, phenol concentration 50 and 50 mg/L, dose 1.97 and 2 g/L and contact time 36 and 56 min, respectively. The results indicated that MWCNTs and SWCNTs were proven as high-performance adsorbents for toxic phenol removal from wastewater.
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