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Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study

Copper adsorption onto calcium alginate encapsulated magnetic sorbent is studied in this paper. The objective of this study was to qualitatively and quantitatively elucidate the copper binding onto the sorbent. The adsorption increases from around 0 to almost 100% as the initial pH is increased from...

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Main Authors: Soh-Fong, Lim, Yu-Ming, Zheng, Shuai-Wen, Zou, Chen, J.Paul
Format: E-Article
Language:English
Published: American Chemical Society 2008
Subjects:
TN Mining engineering. Metallurgy
Online Access:http://ir.unimas.my/id/eprint/9574/1/Characterization%20of%20Copper%20Adsorption%20onto%20an%20Alginate%20Encapsulated%20Magnetic%20Sorbent%28abstract%29.pdf
http://ir.unimas.my/id/eprint/9574/
http://pubs.acs.org/doi/abs/10.1021/es7021889
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spelling my.unimas.ir.95742015-11-09T04:07:01Z http://ir.unimas.my/id/eprint/9574/ Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study Soh-Fong, Lim Yu-Ming, Zheng Shuai-Wen, Zou Chen, J.Paul TN Mining engineering. Metallurgy Copper adsorption onto calcium alginate encapsulated magnetic sorbent is studied in this paper. The objective of this study was to qualitatively and quantitatively elucidate the copper binding onto the sorbent. The adsorption increases from around 0 to almost 100% as the initial pH is increased from 2 to 5. A maximum adsorption capacity of 0.99 mmol g−1 is achieved. The FT-IR and XPS studies show that the C—O in carboxyl group of alginate directly attaches to the copper ion that leads to most of the adsorption. A mathematical model is developed, and it includes ion exchange between the calcium and the copper, coordination reaction between the functional group and the copper, as well as surface complex formation between the iron oxide and the copper. The model is capable of describing and predicting effects of various key operational parameters on the adsorption process, such as initial pH, metal concentration, and dosage of sorbent. American Chemical Society 2008 E-Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9574/1/Characterization%20of%20Copper%20Adsorption%20onto%20an%20Alginate%20Encapsulated%20Magnetic%20Sorbent%28abstract%29.pdf Soh-Fong, Lim and Yu-Ming, Zheng and Shuai-Wen, Zou and Chen, J.Paul (2008) Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study. Environmental Science & Technology, 42 (7). pp. 2551-2556. http://pubs.acs.org/doi/abs/10.1021/es7021889 DOI: 10.1021/es7021889
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic TN Mining engineering. Metallurgy
spellingShingle TN Mining engineering. Metallurgy
Soh-Fong, Lim
Yu-Ming, Zheng
Shuai-Wen, Zou
Chen, J.Paul
Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
description Copper adsorption onto calcium alginate encapsulated magnetic sorbent is studied in this paper. The objective of this study was to qualitatively and quantitatively elucidate the copper binding onto the sorbent. The adsorption increases from around 0 to almost 100% as the initial pH is increased from 2 to 5. A maximum adsorption capacity of 0.99 mmol g−1 is achieved. The FT-IR and XPS studies show that the C—O in carboxyl group of alginate directly attaches to the copper ion that leads to most of the adsorption. A mathematical model is developed, and it includes ion exchange between the calcium and the copper, coordination reaction between the functional group and the copper, as well as surface complex formation between the iron oxide and the copper. The model is capable of describing and predicting effects of various key operational parameters on the adsorption process, such as initial pH, metal concentration, and dosage of sorbent.
format E-Article
author Soh-Fong, Lim
Yu-Ming, Zheng
Shuai-Wen, Zou
Chen, J.Paul
author_facet Soh-Fong, Lim
Yu-Ming, Zheng
Shuai-Wen, Zou
Chen, J.Paul
author_sort Soh-Fong, Lim
title Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
title_short Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
title_full Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
title_fullStr Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
title_full_unstemmed Characterization of Copper Adsorption onto an Alginate Encapsulated Magnetic Sorbent by a Combined FT-IR, XPS, and Mathematical Modeling Study
title_sort characterization of copper adsorption onto an alginate encapsulated magnetic sorbent by a combined ft-ir, xps, and mathematical modeling study
publisher American Chemical Society
publishDate 2008
url http://ir.unimas.my/id/eprint/9574/1/Characterization%20of%20Copper%20Adsorption%20onto%20an%20Alginate%20Encapsulated%20Magnetic%20Sorbent%28abstract%29.pdf
http://ir.unimas.my/id/eprint/9574/
http://pubs.acs.org/doi/abs/10.1021/es7021889
_version_ 1644510762553573376
score 13.211869

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