NDLI: Removal of heavy metals in aqueous solution using Antarctic krill chitosan/hydroxyapatite composite

Content Provider	Springer Nature Link
Author	Qi, Hang Jiang, Xiao Zhou, Dayong Zhu, Beiwei Qin, Lei Ma, Chun Ong, Yihang Murata, Yoshiyuki
Copyright Year	2013
Abstract	Discarded Antarctic krill shells can be used to prepare chitosan and adsorption materials in an attempt to save resource and protect environment. The optimal conditions of composite materials preparation were as follows: mass ratio of CS and HA was 2:1 at 40 °C, pH 10–10.5, volume ratio of chitosan and Ca(NO$_{3}$)$_{2}$ was 2:1 over a period of 1 day. Under these conditions, the Cr (VI) removal rate was about 75±8 %. SEM, TEM, XRD, FTIR, DT-TGA analysis indicated that CS/HA composite was made up of CS and HA and it possessed good mechanical strength and thermal stability. The ability to remove Cd (II), Cr (III) and Cu (II) in aqueous was high, and the optimal conditions were as follows: a contact time of 60 min at 35 °C and pH 6–7. The removal rates of all three heavy metals were above 90 %.
Starting Page	1134
Ending Page	1140
Page Count	7
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	14
Issue Number	7
e-ISSN	18750052
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-10-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antarctic krill shells Chitosan Hydroxyapatite Preparation Heavy metals Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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Removal of heavy metals in aqueous solution using Antarctic krill chitosan/hydroxyapatite composite