Adsorption of Cd (II) on chitosan–silica hybrid aerogel from aqueous solution

Kelechi Ebisike; Afamefuna Elvis Okoronkwo; Kenneth Kanayo Alaneme

doi:10.1016/j.eti.2019.100337

Adsorption of Cd (II) on chitosan–silica hybrid aerogel from aqueous solution

Kelechi Ebisike, Afamefuna Elvis Okoronkwo, Kenneth Kanayo Alaneme

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

Chitosan–silica hybrid aerogel was applied in aqueous solution for Cd ²⁺ removal. The resulting aerogel was subjected to pH, contact time, and metal recovery studies. Data obtained was subjected to kinetic and isotherm studies. The optimum conditions for Cd ²⁺ adsorption was established to be at a pH of 3 and contact time of 180 min. Pseudo second order kinetic model with R ² value above 0.9 was best fit to the study whereas Langmuir model is the preferred isotherm for the data as the dimensionless constant separation factor calculated fell between 0 and 1. Parameters influencing the adsorption process were also investigated.

Original language	English
Article number	100337
Journal	Environmental Technology and Innovation
Volume	14
DOIs	https://doi.org/10.1016/j.eti.2019.100337
Publication status	Published - May 2019
Externally published	Yes

Keywords

Adsorption
Cadmium
Chitosan–silica hybrid aerogel
Heavy metals
Isotherm
Kinetic

ASJC Scopus subject areas

General Environmental Science
Soil Science
Plant Science

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10.1016/j.eti.2019.100337

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title = "Adsorption of Cd (II) on chitosan–silica hybrid aerogel from aqueous solution",

abstract = " Chitosan–silica hybrid aerogel was applied in aqueous solution for Cd 2+ removal. The resulting aerogel was subjected to pH, contact time, and metal recovery studies. Data obtained was subjected to kinetic and isotherm studies. The optimum conditions for Cd 2+ adsorption was established to be at a pH of 3 and contact time of 180 min. Pseudo second order kinetic model with R 2 value above 0.9 was best fit to the study whereas Langmuir model is the preferred isotherm for the data as the dimensionless constant separation factor calculated fell between 0 and 1. Parameters influencing the adsorption process were also investigated.",

keywords = "Adsorption, Cadmium, Chitosan–silica hybrid aerogel, Heavy metals, Isotherm, Kinetic",

author = "Kelechi Ebisike and Okoronkwo, {Afamefuna Elvis} and Alaneme, {Kenneth Kanayo}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

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doi = "10.1016/j.eti.2019.100337",

language = "English",

volume = "14",

journal = "Environmental Technology and Innovation",

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T1 - Adsorption of Cd (II) on chitosan–silica hybrid aerogel from aqueous solution

AU - Ebisike, Kelechi

AU - Okoronkwo, Afamefuna Elvis

AU - Alaneme, Kenneth Kanayo

PY - 2019/5

Y1 - 2019/5

N2 - Chitosan–silica hybrid aerogel was applied in aqueous solution for Cd 2+ removal. The resulting aerogel was subjected to pH, contact time, and metal recovery studies. Data obtained was subjected to kinetic and isotherm studies. The optimum conditions for Cd 2+ adsorption was established to be at a pH of 3 and contact time of 180 min. Pseudo second order kinetic model with R 2 value above 0.9 was best fit to the study whereas Langmuir model is the preferred isotherm for the data as the dimensionless constant separation factor calculated fell between 0 and 1. Parameters influencing the adsorption process were also investigated.

AB - Chitosan–silica hybrid aerogel was applied in aqueous solution for Cd 2+ removal. The resulting aerogel was subjected to pH, contact time, and metal recovery studies. Data obtained was subjected to kinetic and isotherm studies. The optimum conditions for Cd 2+ adsorption was established to be at a pH of 3 and contact time of 180 min. Pseudo second order kinetic model with R 2 value above 0.9 was best fit to the study whereas Langmuir model is the preferred isotherm for the data as the dimensionless constant separation factor calculated fell between 0 and 1. Parameters influencing the adsorption process were also investigated.

KW - Adsorption

KW - Cadmium

KW - Chitosan–silica hybrid aerogel

KW - Heavy metals

KW - Isotherm

KW - Kinetic

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DO - 10.1016/j.eti.2019.100337

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SN - 2352-1864

VL - 14

JO - Environmental Technology and Innovation

JF - Environmental Technology and Innovation

M1 - 100337

ER -

Adsorption of Cd (II) on chitosan–silica hybrid aerogel from aqueous solution

Abstract

Keywords

ASJC Scopus subject areas

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