Preparation of poly(4-vinylpyridine)-functionalized magnetic Al-MOF for the removal of naproxen from aqueous solution

• Published in: Journal of hazardous materials 2020-02, Vol.383, p.121144, Article 121144
• Main Authors: Li, Yuanshuai, Wang, Yuting, He, Liyan, Meng, Lezu, Lu, Haijun, Li, Xiaoli
• Format: Article
• Language: English
• Subjects: Adsorption; Al-MOF-Fe3O4@P4VP; Anti-Inflammatory Agents, Non-Steroidal - isolation & purification; Magnetic nanomaterial; Magnetics; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Naproxen; Naproxen - isolation & purification; Polyvinyls - chemistry; Spectroscopy, Fourier Transform Infrared; Wastewater treatment; Water Pollutants, Chemical - isolation & purification
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2019.121144

Synthesis route of Al-MOF-Fe3O4@P4 V P. [Display omitted] •P4 V P-functionalized Al-MOF was developed as an adsorbent for the removal of naproxen from aqueous solution.•Al-MOF-Fe3O4@P4 V P had large surface area, porous structure and magnetic separation performance.•Al-MOF-Fe3O4@P4 V P exhibited high adsorption capacity and fast kinetics for naproxen.•The novel adsorbent was easily separated with a magnet and exhibited good reusability and stability.•Possible adsorption mechanism of naproxen on Al-MOF-Fe3O4@P4 V P was proposed. In this work, a novel poly(4-vinylpyridine)-functionalized magnetic Al-MOF (Al-MOF-Fe3O4@P4VP) was synthesized successfully as an adsorbent for the adsorption of naproxen from aqueous solution. The resulting adsorbent was characterized with scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, vibrating sample magnetometer (VSM), BET surface area and X-ray photoelectron spectroscopy (XPS). Al-MOF-Fe3O4@P4VP had high surface area (123.68 m2/g), porous structure, rough surface and magnetic property. The maximum adsorption capacity of Al-MOF-Fe3O4@P4VP for naproxen could reach up to 31.67 mg/g and the adsorption process was well described by the Freundlich isotherm. The adsorption rate of naproxen on Al-MOF-Fe3O4@P4VP was very fast and the kinetics could be well modeled by the pseudo-second-order model. The adsorbent exhibited good adsorption ability even after ten adsorption-desorption cycles. Al-MOF-Fe3O4@P4VP had the characteristics of high removal efficiency, fast adsorption speed, good reusability and easy separation, making it a novel environment-friendly and effective magnetic nanomaterial in adsorbing naproxen from wastewater.