Porous Azo-Bridged Porphyrin-Phthalocyanine Network with High Iodine Capture Capability

Hui Li; Xuesong Ding; Bao-Hang Han

doi:10.1002/chem.201602337

Porous Azo-Bridged Porphyrin-Phthalocyanine Network with High Iodine Capture Capability

Chemistry. 2016 Aug 8;22(33):11863-8. doi: 10.1002/chem.201602337. Epub 2016 Jul 14.

Authors

Hui Li^{1

2}, Xuesong Ding³, Bao-Hang Han⁴

Affiliations

¹ CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
² University of Chinese Academy of Sciences, Beijing, 100049, China.
³ CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China. dingxs@nanoctr.cn.
⁴ CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China. hanbh@nanoctr.cn.

PMID: 27412919
DOI: 10.1002/chem.201602337

Abstract

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.

Keywords: gas adsorption; iodine; phthalocyanine; porous polymers; porphyrins.