A Hydrolytically Stable Vanadium(IV) Metal–Organic Framework with Photocatalytic Bacteriostatic Activity for Autonomous Indoor Humidity Control

• Published in: Angewandte Chemie International Edition 2020-03, Vol.59 (10), p.3905-3909
• Main Authors: Ma, Dou, Li, Ping, Duan, Xiangyu, Li, Jiazhen, Shao, Pengpeng, Lang, Zhongling, Bao, Lixia, Zhang, Yuanyuan, Lin, Zhengguo, Wang, Bo
• Format: Article
• Language: English
• Subjects: Adsorbed water; Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; Bacteriostats; Breeding; Catalysis; Control stability; Density Functional Theory; Escherichia coli - drug effects; Humidity; Humidity control; Hydrolysis; indoor humidity control; Light; Metal-organic frameworks; Metal-Organic Frameworks - chemistry; Metal-Organic Frameworks - pharmacology; Microbial Sensitivity Tests; Moisture control; Particle Size; Photocatalysis; photocatalytic bacteriostasis; Photochemical Processes; Porosity; Recyclability; Surface Properties; Vanadium; Vanadium - chemistry; Vanadium - pharmacology; Water - chemistry; Water harvesting; water sorption; Water uptake; water-stable MOFs; Work capacity
• ISSN: 1433-7851; 1521-3773
• DOI: 10.1002/anie.201914762

Metal–organic frameworks (MOFs) with long‐term stability and reversible high water uptake properties can be ideal candidates for water harvesting and indoor humidity control. Now, a mesoporous and highly stable MOF, BIT‐66 is presented that has indoor humidity control capability and a photocatalytic bacteriostatic effect. BIT‐66 (V3(O)3(H2O)(BTB)2), possesses prominent moisture tunability in the range of 45–60 % RH and a water uptake and working capacity of 71 and 55 wt %, respectively, showing good recyclability and excellent performance in water adsorption–desorption cycles. Importantly, this MOF demonstrates a unique photocatalytic bacteriostatic behavior under visible light, which can effectively ameliorate the bacteria and/or mold breeding problem in water adsorbing materials. BIT‐66, V3(O)3(H2O)(BTB)2 features moisture tunability in the range of 45–60 % RH. It shows good recyclability and excellent performance in water adsorption–desorption cycles. This MOF has unique photocatalytic bacteriostatic behavior under visible light, which can effectively ameliorate the bacteria and/or mold breeding problem in water‐adsorbing materials.