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

Hang Qi; Xiao Jiang; Dayong Zhou; Beiwei Zhu; Lei Qin; Chun Ma; Yihang Ong; Yoshiyuki Murata

doi:10.1007/s12221-013-1134-z

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

Hang Qi, Xiao Jiang, Dayong Zhou, Beiwei Zhu, Lei Qin, Chun Ma, Yihang Ong, Yoshiyuki Murata

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

7 Citations (Scopus)

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(NO₃)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 %.

Original language	English
Pages (from-to)	1134-1140
Number of pages	7
Journal	Fibers and Polymers
Volume	14
Issue number	7
DOIs	https://doi.org/10.1007/s12221-013-1134-z
Publication status	Published - Jul 2013

Keywords

Antarctic krill shells
Chitosan
Heavy metals
Hydroxyapatite
Preparation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Polymers and Plastics

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10.1007/s12221-013-1134-z

Cite this

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title = "Removal of heavy metals in aqueous solution using Antarctic krill chitosan/hydroxyapatite composite",

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(NO3)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 %.",

keywords = "Antarctic krill shells, Chitosan, Heavy metals, Hydroxyapatite, Preparation",

author = "Hang Qi and Xiao Jiang and Dayong Zhou and Beiwei Zhu and Lei Qin and Chun Ma and Yihang Ong and Yoshiyuki Murata",

note = "Funding Information: This work was supported by National Projects of the 863 Plan (No. 2011AA090801) and Program for Liaoning Excellent Talents in University (LJQ2011056).",

year = "2013",

month = jul,

doi = "10.1007/s12221-013-1134-z",

language = "English",

volume = "14",

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T1 - Removal of heavy metals in aqueous solution using Antarctic krill chitosan/hydroxyapatite composite

AU - Qi, Hang

AU - Jiang, Xiao

AU - Zhou, Dayong

AU - Zhu, Beiwei

AU - Qin, Lei

AU - Ma, Chun

AU - Ong, Yihang

AU - Murata, Yoshiyuki

N1 - Funding Information: This work was supported by National Projects of the 863 Plan (No. 2011AA090801) and Program for Liaoning Excellent Talents in University (LJQ2011056).

PY - 2013/7

Y1 - 2013/7

N2 - 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(NO3)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 %.

AB - 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(NO3)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 %.

KW - Antarctic krill shells

KW - Chitosan

KW - Heavy metals

KW - Hydroxyapatite

KW - Preparation

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

Abstract

Keywords

ASJC Scopus subject areas

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