Sustainable cobalt (II) removal from wastewater using an electrospun Ag-MOF/polycaprolactone-chitosan nanofiber membrane: Optimization and regeneration performance.

A novel nanofiber membrane integrating a silver metal-organic framework (Ag-MOF), polycaprolactone (PCL), and chitosan (CS) was developed through electrospinning techniques to create the Ag-MOF/PCL-CS nanofiber membrane aimed at the real removal of cobalt (II) ions from aqueous solutions. The successful synthesis of this hybrid membrane was rigorously characterized using FT-IR, XRD, XPS, SEM-EDX, and nitrogen adsorption/desorption isotherms. Additionally, batch adsorption studies were conducted to assess various parameters, counting pH, initial Co(II) concentration, contact duration, temperature, and the dosage of the adsorbent.

Sustainable removal of Cd(II) using β-Cyclodextrin/Polyethylenimine hydrogel beads embedded with silver-MOFs: Synthesis, characterization, mechanism, and process optimization.

This research focuses on the development of a biopolymeric hydrogel adsorbent that is both environmentally friendly and highly effective. It is specifically designed to remove cadmium (II) ions from various water sources and industrial wastewater. The innovative adsorbent, designated as Ag-MOF/CD-PEI hydrogel beads, was formulated by embedding a silver based metal-organic framework (Ag-MOF) within a β-cyclodextrin (CD) and polyethylenimine (PEI) structure, which was chemically crosslinked with epichlorohydrin.

Novel bivalent transition metal complexes based on a 2-amino-3-hydroxypyridine Schiff base ligand: synthesis elucidation, antimicrobial evaluation, antioxidant and molecular docking studies.

Cu(II), Co(II), Ni(II), Mn(II), and UO(II) complexes have been prepared and studied using a Schiff base generated from 2,4-dihydroxybenzaldehyde and 2-amino-3-hydroxypyridine. Various spectroscopic methods have inferred the complexes' shape and bonding type. The Schiff base and its metal complexes were examined for antibacterial activity against bacteria including Pseudomonas aeruginosa, Bacillus cereus, Escherichia coli, and Staphylococcus aureus, as well as fungi such as Fusarium oxysporum, Aspergillus niger, and Candida albicans.

Efficient removal of Pb(II) ions from wastewater via a vanadium metal-organic framework encapsulated with biopolymer carboxymethyl cellulose/polyethylenimine through synthesis, characterization, and Box-Behnken optimization.

This research focused on developing a new bio-based composite adsorbent for efficiently eliminating Pb(II) ions from water. The composite material, referred to as VMCP, was created by incorporating a vanadium-based metal-organic framework (V-MOF) into a matrix made of carboxymethyl cellulose (CMC) and polyethylenimine (PEI), which was then crosslinked using epichlorohydrin. Various analysis techniques including XRD, XPS, SEM-EDX, FT-IR.