2003 Fiscal Year Final Research Report Summary
Molecular Imprinted Biomass for the Separation of Metal Ions
| Project/Area Number |
14550752
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
反応・分離工学
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| Research Institution | The University of Kitakyushu |
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Principal Investigator |
UEZU Kazuya The University of Kitakyushu, Dept.of Chemical Processes and Environments, Associate Professor, 国際環境工学部, 助教授 (40253497)
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| Co-Investigator(Kenkyū-buntansha) |
MORITA Hiroshi The University of Kitakyushu, Dept.of Chemical Processes and Environments, Lecturer, 国際環境工学部, 講師 (30321524)
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| Project Period (FY) |
2002 – 2003
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| Keywords | biosorption / molecular-recognizing material / molecular imprinting / microorganism / metal ion separation / biomass / function modification / adsorbent |
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| Research Abstract |
Adsorption performance of metal ion, lanthane, copper, and cobalt, by Rhizopus oligosporus (Rh.oligo.) fermentated in liquid media were investigated. Rh.oligo. P12 demonstrated the highest metal-adsorption amount, whose amount of metal adsorbed was 3.2 mmol/g-mycelia, among the Rh.oligo. species, which was comparable to the functional beads for conventional wastewater treatments. From the analysis of Freundlich and Scatchard plots, the several functional groups of Rh.oligo. P12 were concerned with the adsorption of metal. With increasing pH in metal solution, the amount of metal adsorbed was increased for lanthane and cobalt. The pH-dependence slope of lanthane and cobalt were 1/3 and 1/8, respectively, from which the interaction between metal and mycelia was speculated to be not via ionic interaction but via coordination interaction etc. The adsorption site of metal ions by Rh.oligo. would be their cell wall, and we have been modifying them by molecular imprinting for higher metal-adsorption fungi.
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