Multifunctional Aspartic Based MOF for Reduction of Methyl Orange and Antimicrobial Activity

Herein, a multifunctional Aspartic-based MOF was designed via a solvothermal route with different cobalt metal precursors such as acetate, sulfate and chloride and designated as LAsp-MOF-Co (–A, –S and –Cl), respectively. The synthesized MOFs were structurally analyzed through FTIR. The morphology exhibited flower-like needle-shaped crystals arranged randomly, and particles agglomerated around the surface. The chemical composition and spectra confirm the metal incorporation in the MOFs. XRD measurements revealed the crystalline nature of the material. The MOF was subjected to catalytic reduction of carcinogenic Methyl Orange and demonstrated excellent efficiency (97%) in reducing the dye with a rate constant of 1.01 min⁻¹. Antimicrobial activity was also performed, and LAsp-MOF-Co (S) showed the best anti-bacterial activity against Staphylococcus aureus (ZOI of 25.0 ± 0.50 mm) and Pseudomonas aeruginosa (ZOI of 27.50 ± 0.25 mm) as well as activity against fungal strain Candida albicans (ZOI 26.00 ± 1.00 mm). The synthesized MOFs can be employed in water treatment infested with microbial strains and dye. Graphical Abstract: (Figure presented.).