An article Highly improved adsorption performance of metal-organic frameworks CAU-1 for trace toluene in humid air via sequential internal and external surface modification WOS:000519528800075 published article about GASEOUS TOLUENE; HIGH-CAPACITY; INDOOR AIR; VOCS; SELECTIVITY; COMPOUND; REMOVAL; WATER; BREAKTHROUGH; STABILITY in [Zheng, Xianming; Liu, Shuai; Rehman, Sadia; Li, Zehui; Zhang, Pengyi] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China; [Zhang, Pengyi] Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China in 2020, Cited 46. The Name is Benzoic anhydride. Through research, I have a further understanding and discovery of 93-97-0. HPLC of Formula: C14H10O3
Trace volatile organic compounds (VOCs) such as aldehydes and aromatics significantly deteriorate the indoor air quality especially in newly-decorated buildings. The universal water vapor would greatly decrease the adsorption capacity of ad-sorbents for trace VOCs via competitive adsorption and capillary condensation. Herein, we developed a strategy to subsequently modify the internal and external surface of CAU-1, an aluminum-based metal-organic framework (MOF), to significantly improve its humidity resistance. First, anhydrides were used to transfer amino groups of CAU-1 into hydrophobic groups via amide reaction. Second, polydimethylsiloxane was used to form a hydorphobic coating on its external surface. The adsorption capacity of as-modified CAU-1 for 1 ppm toluene increased about 6 times under 50% relative humidity (RH) at 298 K, even much higher than those of common adsorbents including hydrophobic ZSM-5. In addition, it could be completely regenerated below 373 K, about 65 K lower than that required for regenerating ZSM-5 under the same condition, which not only greatly reduces the energy consumption but also improves the safety and feasibility of in-situ regeneration of adsorbents in indoor environment.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com