Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres
Condensed tannin was solidified onto chitosan microspheres to prepare chitosan-tannin (CT) composite micro- spheres with a simple preparation method to study its performance in adsorbing copper (Cu2+) and lead ions (Pb2+) in aqueous media. The study investigated the influence of the mass ratio of ta...
Published in: | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES |
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Main Authors: | , , , , , , , , , |
Format: | Article |
Language: | English |
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ELSEVIER
2024
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Online Access: | https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001359183200001 |
author |
Wang Liang; Chen Xinyi; Xi Xuedong; Lee Seng Hua; Lum Wei Chen; Huang Yuxiang; Du Guanben; Zhou Xiaojian; Zhang Jun |
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Wang Liang; Chen Xinyi; Xi Xuedong; Lee Seng Hua; Lum Wei Chen; Huang Yuxiang; Du Guanben; Zhou Xiaojian; Zhang Jun Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres Biochemistry & Molecular Biology; Chemistry; Polymer Science |
author_facet |
Wang Liang; Chen Xinyi; Xi Xuedong; Lee Seng Hua; Lum Wei Chen; Huang Yuxiang; Du Guanben; Zhou Xiaojian; Zhang Jun |
author_sort |
Wang |
spelling |
Wang, Liang; Chen, Xinyi; Xi, Xuedong; Lee, Seng Hua; Lum, Wei Chen; Huang, Yuxiang; Du, Guanben; Zhou, Xiaojian; Zhang, Jun Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES English Article Condensed tannin was solidified onto chitosan microspheres to prepare chitosan-tannin (CT) composite micro- spheres with a simple preparation method to study its performance in adsorbing copper (Cu2+) and lead ions (Pb2+) in aqueous media. The study investigated the influence of the mass ratio of tannin and chitosan, pH value, adsorption time, and initial concentrations of Cu2+ and Pb2+ on the adsorption capacity of Cu2+ and Pb2+ ions. Additionally, the study examined the adsorption isotherms and kinetics of Cu2+ and Pb2+ on CT composite microspheres. The adsorption process aligns more closely with the fitting results of the Langmuir model. The maximum capacity for saturated monolayer adsorption of CT composite microspheres for Cu2+ and Pb2+ was 37.6 and 52.9 mg/g, respectively. The adsorption process of CT composite microspheres for Cu2+ and Pb2+ was primarily driven by single-layer chemical adsorption. In addition, metal ions adsorbed onto CT composite microspheres can be released by treating them with a dilute solution of strong acid. Furthermore, the CT composite microspheres exhibited impressive removal efficiencies of 82 % and 95 % for Cu2+ and Pb2+ respectively, even at low concentrations of 2 mg/L. The CT composite microspheres have the ability to easily separate the adsorbed Cu2+ and Pb2+ ions. ELSEVIER 0141-8130 1879-0003 2024 282 10.1016/j.ijbiomac.2024.137438 Biochemistry & Molecular Biology; Chemistry; Polymer Science WOS:001359183200001 https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001359183200001 |
title |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
title_short |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
title_full |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
title_fullStr |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
title_full_unstemmed |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
title_sort |
Efficient removal of low concentrations of copper and lead ions in water using chitosan-condensed tannin composite microspheres |
container_title |
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES |
language |
English |
format |
Article |
description |
Condensed tannin was solidified onto chitosan microspheres to prepare chitosan-tannin (CT) composite micro- spheres with a simple preparation method to study its performance in adsorbing copper (Cu2+) and lead ions (Pb2+) in aqueous media. The study investigated the influence of the mass ratio of tannin and chitosan, pH value, adsorption time, and initial concentrations of Cu2+ and Pb2+ on the adsorption capacity of Cu2+ and Pb2+ ions. Additionally, the study examined the adsorption isotherms and kinetics of Cu2+ and Pb2+ on CT composite microspheres. The adsorption process aligns more closely with the fitting results of the Langmuir model. The maximum capacity for saturated monolayer adsorption of CT composite microspheres for Cu2+ and Pb2+ was 37.6 and 52.9 mg/g, respectively. The adsorption process of CT composite microspheres for Cu2+ and Pb2+ was primarily driven by single-layer chemical adsorption. In addition, metal ions adsorbed onto CT composite microspheres can be released by treating them with a dilute solution of strong acid. Furthermore, the CT composite microspheres exhibited impressive removal efficiencies of 82 % and 95 % for Cu2+ and Pb2+ respectively, even at low concentrations of 2 mg/L. The CT composite microspheres have the ability to easily separate the adsorbed Cu2+ and Pb2+ ions. |
publisher |
ELSEVIER |
issn |
0141-8130 1879-0003 |
publishDate |
2024 |
container_volume |
282 |
container_issue |
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doi_str_mv |
10.1016/j.ijbiomac.2024.137438 |
topic |
Biochemistry & Molecular Biology; Chemistry; Polymer Science |
topic_facet |
Biochemistry & Molecular Biology; Chemistry; Polymer Science |
accesstype |
|
id |
WOS:001359183200001 |
url |
https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001359183200001 |
record_format |
wos |
collection |
Web of Science (WoS) |
_version_ |
1818940500885897216 |