Electrospun nanofibers of chitosan/polyvinyl alcohol/UiO-66/nanodiamond: Versatile adsorbents for wastewater remediation and organic dye removal

• DOI: 10.1016/j.cej.2022.141176
• Publication Date: 2022-12-30T12:13:25Z
• Authors: Farhad Ahmadijokani; Hossein Molavi; Addie Bahi; Stefan Wuttke; Milad Kamkar; Orlando J. Rojas; Frank Ko; Mohammad Arjmand
• Keywords: Nanodiamond; Polyvinyl Alcohol; Electrospinning; Methyl blue

The appeal of metal–organic frameworks (MOFs) in wastewater treatment is tempered by their polycrystalline, powdery state, and challenges associated with deployment. In the case UiO-66, one most stable widely-used MOFs, a low tendency for removing some organic contaminants has been observed on top mentioned issues. To address these challenges, herein, we take two complementary steps, i.e., hybridization UiO-66 nanodiamond (ND) followed integration hybrid nanoparticles electrospun polymeric nanofibers based chitosan/polyvinyl alcohol (PVA). We present electrospinning polymer/MOFs as promising technique to fabricate highly efficient adsorbents water remediation. use chitosan/PVA (ECPN) versatile host MOF that remove cationic methylene blue anionic Congo red dyes. Four nanofiber composites containing thermally oxidized (TOND), ND, [email protected] are utilized unravel effect type loading dye adsorption capacity. It shown incorporation small ECPN significantly enhaces maximum More importantly, rationally engineered exhibit best performance adsorption; instance, an 80 % increase capacity, from 769 1429 mg/g, recorded loaded compared unfilled ECPN. On that, designed adsorbent showed appreciable regeneration ability after 6 adsorption–desorption cycles. All all, this study offers new generation advanced materials emerging streams.