Performance of nanoporous carbon material derived from Cocos nucifera: An approach for the recovery of nickel using continuous operation

[Display omitted] •A novel low-cost adsorbent that represents green technology for pollution treatment.•Activated carbon prepared from Exocarp of Cocos nucifera was characterized.•Continuous column adsorption was carried out for different operating parameters.•Modeling of breakthrough curves for the...

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Bibliographic Details
Published in:Materials letters 2020-03, Vol.262, p.127101, Article 127101
Main Authors: Anubriya, D., Mathangi, J.B., Helen Kalavathy, M.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Biomass
Characterization
Continuous adsorption
Economic conditions
Heavy metals
Materials science
Modelling
Nickel
Organic chemistry
Regeneration
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Summary:[Display omitted] •A novel low-cost adsorbent that represents green technology for pollution treatment.•Activated carbon prepared from Exocarp of Cocos nucifera was characterized.•Continuous column adsorption was carried out for different operating parameters.•Modeling of breakthrough curves for the removal of nickel has been analyzed.•Regeneration of the spent activated carbon and recovery of the metal ion. Heavy metals pollution has become one of the serious environmental problems nowadays. The removal of heavy metals from the environment is of special concern due to their persistence. Activated carbon (AC) was synthesized using Exocarp of Cocos nucifera (ECN) as the precursor with H3PO4 as the chemical activating agent with impregnation ratio of 1:1 and 2:1. The adsorption behaviour of Ni from aqueous systems onto AC prepared from ECN has been attempted for column studies under various operating conditions. The regeneration studies were carried out for four adsorption–desorption cycles. Based on the results, activated ECN (AECN) can be economically and effectively used as an adsorbent for the removal of Ni from wastewaters.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2019.127101