A Multi-Functional In(III)-Organic Framework for Acetylene Separation, Carbon Dioxide Utilization, and Antibiotic
Yong-Zhi Li1, Gang-Ding Wang1, Yu-Ke Lu1
1Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education (Northwest University), College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China.
Abstract:
The reaction of In3+ ions with 2,5-di(2H-tetrazol-5-yl) terephthalic acid (H4dtztp) affords a 3D indium-organic framework, [In(dtztp)0.5(OH)(H2O)]·H2O (1) with a (3,6)-connected net. 1 shows good thermal (300 °C) and chemical stabilities (various organic solvents and acidic/basic solutions) and excellent water tolerance (7 days at room temperature or in boiling water). The acetylene (C2H2) sorption behavior of 1 indicates significant separation selectivity over CH4, as confirmed by breakthrough experiments on the realistic gas mixtures. Meanwhile, the MOF with the Lewis and Brønsted acidic bifunctional catalytic sites catalyzes the CO2 conversion with different epoxides with high yields. The fluorescent properties reveal the efficient probing performance of 1 for nitrofurantoin (NFT) and metronidazole (MDZ) in water with a low detection limit (ppm).
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