Simultaneous capture of trace benzene and SO2 in a robust Ni(II)-pyrazolate framework

• DOI: 10.1038/s41467-024-51522-3
• Publication Date: 2024-08-23T13:34:12Z
• Authors: Guang-Rui Si; Xiang-Jing Kong; Tao He; Zhengqing Zhang; Jian-Rong Li
• Keywords: Trace gas; Hazardous air pollutants

Benzene and SO2, coexisting as hazardous air pollutants in some cases, such coke oven emissions, have led to detrimental health environmental effects. Physisorbents offer promise capturing benzene while their performance compromises at low concentration. Particularly, the simultaneous capture of trace SO2 under humid conditions is attractive but challenging. Here, we address this issue by constructing a robust pyrazolate metal-organic framework (MOF) sorbent featuring rich accessible Ni(II) sites with affinity water good stability. This material achieves high uptake 5.08 mmol g–1 10 Pa, surpassing previous benchmarks. More importantly, it exhibits an adsorption capacity ~0.51 for ppm ~1.21 250 30% relative humidity. work demonstrates that pioneering MOF enables highlighting potential physisorbents industrial effluent remediation, even presence moisture. coexist pollutants. Here authors synthesized can simultaneously amounts conditions.