High-performance removal of toxic phenol by single-walled and multi-walled carbon nanotubes: Kinetics, adsorption, mechanism and optimization studies

Dehghani, M.; Mostofi, M.; Alimohammadi, M.; McKay, G.; Yetilmezsoy, K.; Albadarin, A.; Heibati, B.; AlGhouti, M.; Mujawar, Mubarak; Sahu, J.

doi:10.1016/j.jiec.2015.12.010

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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

2016

Type

Journal Article

Metadata

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Citation

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

DOI

10.1016/j.jiec.2015.12.010

ISSN

1226-086X

School

Curtin Sarawak

URI

http://hdl.handle.net/20.500.11937/50819

Collection

Curtin Research Publications

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.