Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin
The adsorption of Cd(II) and Pb(II) by squid melanin was investigated. At a metal ion concentration of 2 mM/L, the biosorption efficiency of melanin reached 95% for Cd(II) and Pb(II). The maximum content of bound Cd(II) and Pb(II) was 0.93 mM/g and 0.65 mM/g, respectively. Temperature had no obvious...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2009/901563 |
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| author | Shiguo Chen Changhu Xue Jingfeng Wang Hui Feng Yuming Wang Qin Ma Dongfeng Wang |
| author_facet | Shiguo Chen Changhu Xue Jingfeng Wang Hui Feng Yuming Wang Qin Ma Dongfeng Wang |
| author_sort | Shiguo Chen |
| collection | DOAJ |
| description | The adsorption of Cd(II) and Pb(II) by squid melanin was investigated. At a metal ion concentration of 2 mM/L, the biosorption efficiency of melanin reached 95% for Cd(II) and Pb(II). The maximum content of bound Cd(II) and Pb(II) was 0.93 mM/g and 0.65 mM/g, respectively. Temperature had no obvious effect on the adsorption of the metals, and in a pH range of 4.0–7.0, the adsorption yield was high and stable. Macrosalts such as NaCl, MgCl2, and CaCl2 had no obvious effect on the binding of Pb(II) but greatly diminished the adsorption of Cd(II), which indicated that different functional groups in squid melanin are responsible for their adsorption. IR analysis of metal ion-enriched squid melanin demonstrated that the possible functional groups responsible for metal binding were phenolic hydroxyl (OH), carboxyl (COOH), and amine groups (NH). This study reports a new material for the removal of heavy metals from low-strength wastewater. |
| format | Article |
| id | doaj-art-df3ea00e29c047a4a2cc99c29936c539 |
| institution | Kabale University |
| issn | 1565-3633 1687-479X |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-df3ea00e29c047a4a2cc99c29936c5392025-02-03T06:01:36ZengWileyBioinorganic Chemistry and Applications1565-36331687-479X2009-01-01200910.1155/2009/901563901563Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami MelaninShiguo Chen0Changhu Xue1Jingfeng Wang2Hui Feng3Yuming Wang4Qin Ma5Dongfeng Wang6College of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaCollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaCollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaDepartment of Food Science and Technology, Oregon State University, Corvallis, OR 97331-4501, USACollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaCollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaCollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, ChinaThe adsorption of Cd(II) and Pb(II) by squid melanin was investigated. At a metal ion concentration of 2 mM/L, the biosorption efficiency of melanin reached 95% for Cd(II) and Pb(II). The maximum content of bound Cd(II) and Pb(II) was 0.93 mM/g and 0.65 mM/g, respectively. Temperature had no obvious effect on the adsorption of the metals, and in a pH range of 4.0–7.0, the adsorption yield was high and stable. Macrosalts such as NaCl, MgCl2, and CaCl2 had no obvious effect on the binding of Pb(II) but greatly diminished the adsorption of Cd(II), which indicated that different functional groups in squid melanin are responsible for their adsorption. IR analysis of metal ion-enriched squid melanin demonstrated that the possible functional groups responsible for metal binding were phenolic hydroxyl (OH), carboxyl (COOH), and amine groups (NH). This study reports a new material for the removal of heavy metals from low-strength wastewater.http://dx.doi.org/10.1155/2009/901563 |
| spellingShingle | Shiguo Chen Changhu Xue Jingfeng Wang Hui Feng Yuming Wang Qin Ma Dongfeng Wang Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin Bioinorganic Chemistry and Applications |
| title | Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin |
| title_full | Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin |
| title_fullStr | Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin |
| title_full_unstemmed | Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin |
| title_short | Adsorption of Pb(II) and Cd(II) by Squid Ommastrephes bartrami Melanin |
| title_sort | adsorption of pb ii and cd ii by squid ommastrephes bartrami melanin |
| url | http://dx.doi.org/10.1155/2009/901563 |
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