Removal of emerging contaminants from water by using Fe-MOF composite as a sorbent

• Published in: Journal of the Iranian Chemical Society Vol. 18; no. 12; pp. 3249 - 3255
• Main Authors: Chang, Fouzia, Memon, Najma, Memon, Shahabuddin, Chang, Abdul Sattar
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2021; Springer Nature B.V
• Subjects: Adsorbents; Adsorption; Analytical Chemistry; Aqueous solutions; Biochemistry; Chemical analysis; Chemistry; Chemistry and Materials Science; Composite materials; Contaminants; Infrared analysis; Infrared spectroscopy; Inorganic Chemistry; Iron oxides; Metal-organic frameworks; Nanoparticles; Organic Chemistry; Original Paper; Physical Chemistry; Sorbents; Kinetics; Adsorption; Fe-BTC; Composite; Emerging contaminants; Pharmaceuticals
• ISSN: 1735-207X; 1735-2428
• DOI: 10.1007/s13738-021-02264-2

This study aims to solve the problem of water contamination. Fe-MOF composite material was prepared by the solvothermal method. Fe 3 O 4 core–shell magnetic nanoparticles covered with metal–organic frameworks (MOFs). The resulting composite Fe 3 O 4 @MIL-100 (Fe) was characterized with elemental analysis, FT-IR, SEM, EDS, and UV–Vis spectroscopy. For the removal of selected emerging contaminants from the aqueous solutions, various parameters were optimized (pH, concentration, adsorbent amount, and time) by using adsorbent Fe 3 O 4 @MIL-100 (Fe) with batch experiment. From results, it was concluded that the percent removal of selected drugs increases up to 85% within 3 h of contact time by increasing the amount of adsorbent. It helps to eliminate emerging contaminants from water at (pH 4 and 6). The drug adsorption was facilitated by electrostatic interactions, H-bonding, and π–π interaction represented in mechanisms. Pseudo-second-order kinetics and Freundlich models were used to explain the adsorption. Fe 3 O 4 @MIL-100 (Fe) adsorbent gives good percent removal and results compared with the literature.