Li Hui, Ding Xuesong, Han Bao-Hang
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Chemistry. 2016 Aug 8;22(33):11863-8. doi: 10.1002/chem.201602337. Epub 2016 Jul 14.
We report a highly efficient iodine adsorbent achieved by rational design of a porous azo-bridged porphyrin-phthalocyanine network (AzoPPN), which was synthesized by a catalyst-free coupling reaction between free-base 5,10,15,20-tetrakis(4-nitrophenyl)-porphyrin and nickel tetraaminophthlocyanine. AzoPPN has a permanent porous structure and plenty of porphyrin and phthalocyanine units in the skeleton as effective sorption sites. It displays excellent adsorption of iodine vapor up to 290 wt. % and also shows remarkable capability as adsorbent for iodine in solution. This strategy of combining physisorption with chemisorption in one adsorbent will pave the way for the development of new materials for iodine capture.
我们报道了一种通过合理设计多孔偶氮桥联卟啉 - 酞菁网络（AzoPPN）实现的高效碘吸附剂，该网络是通过游离碱5,10,15,20 - 四（4 - 硝基苯基）卟啉与四氨基镍酞菁之间的无催化剂偶联反应合成的。AzoPPN具有永久多孔结构，且骨架中有大量卟啉和酞菁单元作为有效的吸附位点。它对碘蒸气的吸附性能优异，吸附量高达290 wt. %，并且对溶液中的碘也显示出显著的吸附能力。这种在一种吸附剂中结合物理吸附和化学吸附的策略将为碘捕获新材料的开发铺平道路。
