Supramolecular Fixation of Three Amines using Cobalt Tetraphenyl- porphyrin for SO2 Removal  

钴卟啉对三种胺的固定用于SO2的脱除

作　　者：蓝公家 张建斌[1] 赵天翔[1] 许秋霞[1] 魏雄辉[2] 

机构地区：[1]内蒙古工业大学化工学院,呼和浩特010051 [2]北京大学化学与分子工程学院应用化学系,北京100871

出　　处：《Chinese Journal of Chemical Physics》2014年第5期616-620,I0004,共6页化学物理学报（英文）

摘　　要：In this work, supramolecular fixation of three amines, including aniline, ethylenediamine, and diethylamine, using cobalt tetraphenylporphyrin （CoTPP） for SO2 removal was studied using UV-Vis and fluorescence measurements. The UV-Vis spectra showed that increasing amines concentrations resulted in bathochromic shift for CoTPP Soret absorption band （B band）. Once SO2 was introduced, it competed with CoTPP for aniline, ethylenediamine, and diethylamine, which eventually led to the release of CoTPP and the change of solution colour/absorption band. After that, the CoTPP was regenerated and got back to the first state. The fluorescence spectra offered that CoTPP interacted with aniline, ethylenediamine, and diethylamine to form 1：1 molecular adducts. The interactions of CoTPP with aniline, ethylenediamine, and diethylamine were entropy-driven. The interaction of CoTPP with aniline and diethylamine was endothermic, and that with ethylenediamine was exothermic. Ethylenediamine presented a stronger binding constant value for CoTPP, so it was considered as a potential agent for SO2 removal.

关 键 词：Amine SO2 Supramolecular fixation Cobalt tetraphenylporphyrin 

分 类 号：O[理学]