Affiliation:
1. Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, School of Chemistry and Environmental Engineering Sichuan University of Science and Engineering Zigong China
2. Department of Chemistry, College of Sciences King Saud University Riyadh Saudi Arabia
3. Department of Chemistry, Faculty of Science University of Lucknow Lucknow India
4. School of Materials and Environmental Engineering Shenzhen Polytechnic University Shenzhen China
Abstract
A new Cobalt(II)‐based metal–organic framework (MOF) with composition [Co2(μ2‐OH)(L)(bib)·H2O·2DMA]n (1) (H3L = 5‐[4′‐carboxylphenoxy] isophthalic acid, bib = 1, 4‐bis[1‐imidazolyl]benzene, DMA = dimethylacetamide) has been solvothermally synthesized and characterized. The MOF exhibits unprecedented topology with Schläfli symbol (43)2(4.66.1686) and display optical band gap of 3.68 eV and hence utilized as photocatalyst to photodegrade antibiotics such as metronidazole, tinidazole, nitrofurantoin, and dimetridazole. Among these antibiotics, it displays exceptional photocatalytic degradation of nitrofurantoin. Additional studies suggest that at pH 5 and 5 mg/L dosage of 1, 99.66% of nitrofurantoin decomposes at its 40 ppm concentration. Further, mechanistic pathway for light‐driven nitrofurantoin decomposition has been explored by utilizing experimental, namely, radical trapping experiments and computational techniques employing density of states and Hirshfeld surface analyses.
Funder
Special Project for Research and Development in Key areas of Guangdong Province
King Saud University