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Metal organic frameworks MIL-100(Fe) as an efficient adsorptive material for phosphate management

Title
Metal organic frameworks MIL-100(Fe) as an efficient adsorptive material for phosphate management
Author
김기현
Keywords
Adsorption; Phosphate; Metal organic framework; Removal Efficiency; Environment
Issue Date
2019-02
Publisher
Elsevier Inc.
Citation
Environmental Research, v. 169, Page. 229-236
Abstract
The excessive discharge of phosphate in water bodies is one of the primary factors causing eutrophication. Therefore, its removal is of significant research interest. The present study deals with the development and performance of highly effective phosphate-adsorbent. Here, we have synthesized MIL-100(Fe) metal-organic frameworks as a facile strategy to effectively remove phosphate from eutropic water samples. The adsorbent was characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), and wavelength dispersive X-ray fluorescence (WDXRF). The phosphate adsorption performance of MIL-100(Fe) was evaluated with the help of different batch experiments relating to the effect of adsorbent/adsorbate concentrations and the solution pH. The MOF offered a maximum adsorption capacity of 93.6 mg g(-1) for phosphate from aqueous solutions with Langmuir isotherm model (R-2 = 0.99). MIL-100(Fe) offered an absolute phosphate adsorption performance with a partition co-efficient of 15.98 mg g(-1) mu M-1 at pH 4 and room temperature conditions. Final experiments with real water samples were also performed to examine the effectiveness of MIL-100(Fe) for phosphate adsorption even in the presence of other ions. These findings support the potential utility of MIL-100(Fe) as nanoadsorbent in phosphate removal for water management.
URI
https://www.sciencedirect.com/science/article/pii/S0013935118305954?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/103740
ISSN
0013-9351; 1096-0953
DOI
10.1016/j.envres.2018.11.013
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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