dc.citation.conferencePlace |
KO |
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dc.citation.conferencePlace |
Suwon |
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dc.citation.title |
123rd General Meeting of the Korean Chemical Society |
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dc.contributor.author |
Seong, Junmo |
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dc.contributor.author |
Lah, Myoung Soo |
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dc.contributor.author |
Han, Seungwan |
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dc.date.accessioned |
2024-02-01T00:36:44Z |
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dc.date.available |
2024-02-01T00:36:44Z |
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dc.date.created |
2019-12-24 |
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dc.date.issued |
2019-04-18 |
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dc.description.abstract |
N-Acethyl-L-cysteine (AcC)-grafted MOF-808 was prepared by exchanging formates at Zr metal centers of MOF-808 exposed in the solvent pore. Since MOF-808 has six formates per Zr6O4(OH)4 cluster, N-Acethyl-L-cysteine with thiol residue can be introduced into the pore up to six molecules by exchanging formate with N-Acethyl-L-cysteine. The amount of N-Acethyl-L-cysteine molecules was confirmed by NMR and the presence of thiol group was confirmed by FT-IR. Heavy metal adsorption process of AcC-grafted MOF-808 followed pseudo 2nd order kinetic model. AcC-grafted MOF-808 showed 95.9% removal of Cd2+ and its Kd value is 2.31×104, which is moderate compared to other porous systems. The maximum uptake of Cd2+ was 225.1 mg/g, which is the highest value among MOFsystems. In addition, AcC-grafted MOF-808 showed excellent selectivity for Cd2+ and Pb2+ over other alkali and transition metal ions. |
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dc.identifier.bibliographicCitation |
123rd General Meeting of the Korean Chemical Society |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/79983 |
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dc.publisher |
Korean Chemical Society |
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dc.title |
Enhancement of selective heavy metal adsorption ability due to amino acid in MOF-808 |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2019-04-17 |
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