Synthesis, characterization, and adsorption kinetic studies of ethylenediamine modified cellulose for removal of Cd and pb

Stephen Makali Musyoka; Jane Catherine Ngila; Brenda Moodley; Lesley Petrik; Andrew Kindness

doi:10.1080/00032719.2010.539736

Synthesis, characterization, and adsorption kinetic studies of ethylenediamine modified cellulose for removal of Cd and pb

Stephen Makali Musyoka, Jane Catherine Ngila, Brenda Moodley, Lesley Petrik, Andrew Kindness

Chemical Sciences

University of KwaZulu-Natal

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

44 Citations (Scopus)

Abstract

Surface functionalization of cellulose using ethylenediamine was performed to improve its binding capacity for Cd and Pb. Adsorption kinetics at pH6.0 and 25° C revealed the Lang-muir model to better describe the binding phenomena based on linear regression correlation coefficient (R) values of 0.998 and 0.986 with adsorption capacities of 0.0136 and 0.0179 mmolg- ¹ for Cd and Pb, respectively, using raw cellulose and 0.128 and 0.242 mmolg- ¹ with ethylenediamine-modified cellulose. The Freundlich model gave binding capacities of 2.32 x 10- ³ and 2.08 x 10- ³ mmolg- ¹for Cd and Pb, with R values of 0.979 and 0.942, respectively.

Original language	English
Pages (from-to)	1925-1936
Number of pages	12
Journal	Analytical Letters
Volume	44
Issue number	11
DOIs	https://doi.org/10.1080/00032719.2010.539736
Publication status	Published - Jul 2011

Keywords

Adsorption kinetics
Ethylenediamine
Heavy metal removal
Langmuir isotherms
Modified cellulose
Surface functionalization

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Spectroscopy
Clinical Biochemistry
Biochemistry (medical)
Electrochemistry

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10.1080/00032719.2010.539736

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title = "Synthesis, characterization, and adsorption kinetic studies of ethylenediamine modified cellulose for removal of Cd and pb",

abstract = "Surface functionalization of cellulose using ethylenediamine was performed to improve its binding capacity for Cd and Pb. Adsorption kinetics at pH6.0 and 25° C revealed the Lang-muir model to better describe the binding phenomena based on linear regression correlation coefficient (R) values of 0.998 and 0.986 with adsorption capacities of 0.0136 and 0.0179 mmolg- 1 for Cd and Pb, respectively, using raw cellulose and 0.128 and 0.242 mmolg- 1 with ethylenediamine-modified cellulose. The Freundlich model gave binding capacities of 2.32 x 10- 3 and 2.08 x 10- 3 mmolg- 1for Cd and Pb, with R values of 0.979 and 0.942, respectively.",

keywords = "Adsorption kinetics, Ethylenediamine, Heavy metal removal, Langmuir isotherms, Modified cellulose, Surface functionalization",

author = "Musyoka, {Stephen Makali} and Ngila, {Jane Catherine} and Brenda Moodley and Lesley Petrik and Andrew Kindness",

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T1 - Synthesis, characterization, and adsorption kinetic studies of ethylenediamine modified cellulose for removal of Cd and pb

AU - Musyoka, Stephen Makali

AU - Ngila, Jane Catherine

AU - Moodley, Brenda

AU - Petrik, Lesley

AU - Kindness, Andrew

PY - 2011/7

Y1 - 2011/7

N2 - Surface functionalization of cellulose using ethylenediamine was performed to improve its binding capacity for Cd and Pb. Adsorption kinetics at pH6.0 and 25° C revealed the Lang-muir model to better describe the binding phenomena based on linear regression correlation coefficient (R) values of 0.998 and 0.986 with adsorption capacities of 0.0136 and 0.0179 mmolg- 1 for Cd and Pb, respectively, using raw cellulose and 0.128 and 0.242 mmolg- 1 with ethylenediamine-modified cellulose. The Freundlich model gave binding capacities of 2.32 x 10- 3 and 2.08 x 10- 3 mmolg- 1for Cd and Pb, with R values of 0.979 and 0.942, respectively.

AB - Surface functionalization of cellulose using ethylenediamine was performed to improve its binding capacity for Cd and Pb. Adsorption kinetics at pH6.0 and 25° C revealed the Lang-muir model to better describe the binding phenomena based on linear regression correlation coefficient (R) values of 0.998 and 0.986 with adsorption capacities of 0.0136 and 0.0179 mmolg- 1 for Cd and Pb, respectively, using raw cellulose and 0.128 and 0.242 mmolg- 1 with ethylenediamine-modified cellulose. The Freundlich model gave binding capacities of 2.32 x 10- 3 and 2.08 x 10- 3 mmolg- 1for Cd and Pb, with R values of 0.979 and 0.942, respectively.

KW - Adsorption kinetics

KW - Ethylenediamine

KW - Heavy metal removal

KW - Langmuir isotherms

KW - Modified cellulose

KW - Surface functionalization

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Synthesis, characterization, and adsorption kinetic studies of ethylenediamine modified cellulose for removal of Cd and pb

Abstract

Keywords

ASJC Scopus subject areas

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