TY - JOUR
T1 - Metal organic frameworks MIL-100(Fe) as an efficient adsorptive material for phosphate management
AU - Nehra, Monika
AU - Dilbaghi, Neeraj
AU - Singhal, Nitin Kumar
AU - Hassan, Ashraf Aly
AU - Kim, Ki Hyun
AU - Kumar, Sandeep
N1 - Publisher Copyright:
© 2018 Elsevier Inc.
PY - 2019/2
Y1 - 2019/2
N2 - 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 (R2 = 0.99). MIL-100(Fe) offered an absolute phosphate adsorption performance with a partition co-efficient of 15.98 mg g−1 µM−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.
AB - 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 (R2 = 0.99). MIL-100(Fe) offered an absolute phosphate adsorption performance with a partition co-efficient of 15.98 mg g−1 µM−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.
KW - Adsorption
KW - Environment
KW - Metal organic framework
KW - Phosphate
KW - Removal Efficiency
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U2 - 10.1016/j.envres.2018.11.013
DO - 10.1016/j.envres.2018.11.013
M3 - Article
C2 - 30476746
AN - SCOPUS:85056817386
SN - 0013-9351
VL - 169
SP - 229
EP - 236
JO - Environmental Research
JF - Environmental Research
ER -