Abstract
The present study has been developed to evaluate the feasibility of the metal–organic framework (MOF) as adsorbent for nitrate removal from aqueous solution. The MOF-5 was prepared by solution and solvothermal methods via the self-assembly of primary building blocks using zinc acetate dehydrate and benzene-1,4-dicarboxylate (BDC) at two different conditions, room temperature and 90 °C temperature and with or without tri-ethylamine (TEA) as capping agent. The samples were characterized by Fourier transform infrared spectroscopy, X-ray diffraction analysis, scanning electron microscopy, BET surface area, and UV–Vis spectroscopy. The study of nitrate adsorption was carried out at room temperature on the higher surface area of MOF-5 in pH from 2 to 11, whereas significant difference of nitrate adsorption was observed in acidic pH. Based on the results, nano-sized MOF-5 was demonstrated the potential utility for nitrate removal from water solution.
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