Kim Yung-Yoon, Uezu Kazuya
Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Kitakyushu 808-0135, Japan.
Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Kitakyushu 808-0135, Japan.
Sensors (Basel). 2021 Dec 23;22(1):91. doi: 10.3390/s22010091.
The detection and removal of volatile organic compounds (VOCs) are emerging as an important problem in modern society. In this study, we attempted to develop a new material capable of detecting or adsorbing VOCs by introducing a new functional group and immobilizing metal ions into a microfiber nonwoven fabric (MNWF) made through radiation-induced graft polymerization. The suitable metal complex was selected according to the data in "Cambridge Crystallographic Data Center (CCDC)". 4-picolylamine (4-AMP), designated as a ligand through the metal complex data of CCDC, was introduced at an average mole conversion rate of 63%, and copper ions were immobilized at 0.51 mmol/g to the maximum. It was confirmed that degree of grafting (dg) 170% 4-AMP-Cu MNWF, where copper ions are immobilized, can adsorb up to 50% of acetone gas at about 50 ppm, 0.04 mmol/g- 4-AMP-Cu-MNWF, at room temperature and at a ratio of copper ion to adsorbed acetone of 1:10.
挥发性有机化合物（VOCs）的检测与去除正成为现代社会中的一个重要问题。在本研究中，我们试图通过引入新的官能团并将金属离子固定到通过辐射诱导接枝聚合制成的微纤维无纺布（MNWF）中，来开发一种能够检测或吸附VOCs的新型材料。根据“剑桥晶体学数据中心（CCDC）”中的数据选择合适的金属配合物。通过CCDC的金属配合物数据指定为配体的4-吡啶甲胺（4-AMP）以63%的平均摩尔转化率引入，并且铜离子以最大0.51 mmol/g的量固定。已证实，固定有铜离子的接枝度（dg）为170%的4-AMP-Cu MNWF在室温下、铜离子与吸附丙酮的比例为1:10时，对于约百万分之50（50 ppm）的丙酮气体，吸附量可达0.04 mmol/g - 4-AMP-Cu-MNWF的50%。
