Detection and capture of highly toxic H2S in porous cage-like materials: MOFs, COFs and POCs

Abstract

Hydrogen sulfide (H2S) is a corrosive and toxic gas produced naturally and mostly by industrial activity. Hence, the capture and detection of this gas is imperative, and investigations have flourished over the past decades. Adsorption by porous materials (molecular cages) has presented a novel alternative for this problem. Materials like Metal-Organic Frameworks, Covalent-Organic Frameworks, and Porous-Organic Cages offer properties such as large surface area and tunable pore sizes that can interact effectively with H2S. Capture and detection using these materials present new lines of investigation that could substitute other methods in the future. This review summarizes examples of these materials for the capture and detection of the toxic gas H2S and highlights the importance of continuing these lines of study for short-term remediation.