Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)

Preparation of carboxymethyl chitosan microspheres and the adsorption of heavy metal cadmium

Authors
Wancui Xie, Ziqi Li, Meiqi Yang, Xihong Yang
Corresponding Author
Wancui Xie
Available Online November 2016.
DOI
10.2991/imst-16.2016.45How to use a DOI?
Keywords
carboxymethyl chitosan; bead; heavy metal; cadmium; adsorption.
Abstract

Cadmium pollution is a serious environmental and agricultural issue. As such, an adsorbent material with convenient recovery must be used to adsorb excess cadmium. In this study, carboxymethyl chitosan (CMCS) microspheres were prepared under controlled conditions. The structure, acid/alkali resistance, and thermal properties of these microspheres were assessed. The adsorption properties of the prepared CMCS microspheres were also studied through graphite furnace atomic absorption spectrometry. Factors affecting adsorption efficiency were discussed. Results showed that the optimum preparation conditions included the following: 5% CMCS solution, 0.15 mol-L 1 hydrochloric acid solution, and 0.625% glutaraldehyde cross-linking solution with bathing beads in a 40°C water bath for 1 h and in a 60°C water bath for 2 h. The optimal dosage, adsorption time, and pH of the fabricated CMCS microspheres are 5 g, 2 h, and 5, respectively. The initial concentration of cadmium chloride is 0.2 g-L 1. The adsorption rate of CMCS microspheres on the simulated cadmium ions in aqueous solution is higher than 64% under the optimal condition.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

Volume Title
Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)
Series
Advances in Intelligent Systems Research
Publication Date
November 2016
ISBN
978-94-6252-269-5
ISSN
1951-6851
DOI
10.2991/imst-16.2016.45How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Wancui Xie
AU  - Ziqi Li
AU  - Meiqi Yang
AU  - Xihong Yang
PY  - 2016/11
DA  - 2016/11
TI  - Preparation of carboxymethyl chitosan microspheres and the adsorption of heavy metal cadmium
BT  - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)
PB  - Atlantis Press
SP  - 305
EP  - 313
SN  - 1951-6851
UR  - https://doi.org/10.2991/imst-16.2016.45
DO  - 10.2991/imst-16.2016.45
ID  - Xie2016/11
ER  -