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| Type |
Poster Presentation |
| Area |
Inorganic Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 18일 (목요일) 11:00~12:30 |
| Code |
INOR.P-28 |
| Subject |
Eco-sustainable Fe3O4 Nanoparticles Embedded Metal-Organic Framework Composite for Facile Removal of Aqueous Lead |
| Authors |
DooJin Lee, Gyungse Park1, Minyoung Yoon*
Department of Nano Chemistry, Gachon University Global Campus, Korea
1Department of Chemistry, Kunsan National University, Korea
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| Abstract |
Aquatic remediation using metal-organic frameworks (MOFs) has recently been proved to be an efficient technology. Designing MOFs with good stability and quick recyclable separation is still a critical challenge. Herein, a simple embedding biopolymer coated Fe₃O₄ NPs (PFe3O4 NPs) in NH₂-MIL-125(Ti) was successfully demonstrated, which was further used for the efficient aquatic scavenging application. The high-resolution transmission electron microscopy (HRTEM) images illustrate that the PFe₃O₄ NPs were uniformly embedded onto the surface of the MOF and thermogravimetric analysis (TGA) shows the high thermal stability of the composite. The composite was applied for the removal of Pb(II) from aqueous solution. The effect of various parameters like pH, contact time, initial metal ion concentration, interfering ions, and temperature on the adsorption capacity of the nanoporous composite were examined. The Langmuir model for adsorption reveals the best fitting with a maximum adsorption capacity of 561.7 mg·g-1 at pH 5 and 298 K. In addition, increasing the PFe₃O₄ precursor on nanoporous MOF decreases the recovery time (21 s), and enhances the adsorption process. The MOF composite can be recycled six times without obvious loss of the Pb(II) adsorption capacity, which is significant for its future practical use in treating industrial waste discharge and catalysis. Details of this work will be presented. |
| E-mail |
younha4352@gmail.com |
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123rd General Meeting of the KCS