Capture of toxic gases in MOFs: SO₂, H₂S, NH₃ and NO_x

Abstract

MOFs are promising candidates for the capture of toxic gases since their adsorption properties can be tuned as a function of the topology and chemical composition of the pores. Although...

High Water Adsorption MOFs with Optimized Pore‐Nanospaces for Autonomous Indoor Humidity Control and Pollutants Removal

“…Theh azardous gases and vapors,i ncluding VOCs like formaldehyde and benzene derivatives and toxic gases like NH 3 and SO 2 ,have long been threaten to human health. [5,15,56] However,the capture of these industrial relevant pollutants is ac hallenging issue because the commercial adsorbents like activated carbon have limited adsorption capacity and low selectivity against water competition. [15,35,57] Particularly, development of efficient absorbents that can tolerate adsorption of both polar and nonpolar pollutants in the presence of water vapor without degradation is of extreme importance to improve the living environment.…”

“…Forschungsartikel 420 8 8C(Supplementary Figures 4,5,11 and 21). Thechemical stability is evaluated by checking PXRD profiles after immersing representative MOFs in water, acid and basic solutions (Figure 3a).…”

“…[1] TheA merican Society of Heating,R efrigerating, and Air-Conditioning Engineers (ASHRAE) recommended the most habitable range of 45-65 %R H, [2,3] and Arundel et al proposed an optimal range of 40-60 %R Hf or minimization of adverse health effects (Figure 1). [4] Moreover, the indoor pollutants such as volatile organic compounds (VOCs) and toxic gases become an ever-growing threat to the safety of human life, [5][6][7] which are generable from building materials,o ffice equipment and daily necessities.I nf actories like chemical plants,p rinting houses and smelteries,the situation is even serious. [7][8][9] Consequently,itis demanded to develop next-generation adsorbents that are more effective than commercial zeolites,s ilica-gels and activated carbon with low energy efficiencyand selectivity, [10] so as to automatically and simultaneously control indoor humidity and remove indoor contaminants [5,11] to create comfortable and healthy working and living spaces.…”

“…[4] Moreover, the indoor pollutants such as volatile organic compounds (VOCs) and toxic gases become an ever-growing threat to the safety of human life, [5][6][7] which are generable from building materials,o ffice equipment and daily necessities.I nf actories like chemical plants,p rinting houses and smelteries,the situation is even serious. [7][8][9] Consequently,itis demanded to develop next-generation adsorbents that are more effective than commercial zeolites,s ilica-gels and activated carbon with low energy efficiencyand selectivity, [10] so as to automatically and simultaneously control indoor humidity and remove indoor contaminants [5,11] to create comfortable and healthy working and living spaces. 60 %R H, light green grid) and air-conditioning comfortable environments (ASHRAE range of 45-65 %RH, light green), and the implementable RH windows for humidificationa tlower RH (< 45 %, light blue) and dehumidification at higher RH (> 65 %, sandy brown).…”

Sulfur Dioxide Capture in Metal‐Organic Frameworks, Metal‐Organic Cages, and Porous Organic Cages

“…Many of these materials have demonstrated high SO 2 uptakes in the low‐pressure range, which is the utmost requirement in the FGD application. Though the literature is saturated with numerous works on MOFs for SO 2 capture, as summarized in a recent review from our group, [14] reports on MOCs and POCs are scarce. Thus, the present contribution focuses on the most valuable and recent contributions made in the domain of SO 2 capture in MOFs, MOCs, and POCs materials with utmost priority on their structure and functional groups driving the SO 2 capture process.…”