Imparting Superhydrophobicity to Porphyrinic Coordination Frameworks Using Organotin  

作　　者：Liang He Yu-Jun Guo Yi-Hong Xiao Er-Xia Chen Ming-Bu Luo Zeng-Hui Li Qipu Lin 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002 [2]University of Chinese Academy of Sciences,Beijing 100049 [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou,Fujian 350108

出　　处：《CCS Chemistry》2022年第7期2286-2293,共8页中国化学会会刊（英文）

基　　金：financially supported by the Strategic Priority Research Program of Chinese Academy of Sciences(grant no.XDB20000000);the National Natural Science Foundation of China(grant no.21501028);the Hundred-Talent Program of Fujian Province;the Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China(no.2021ZR138).

摘　　要：It is important to find a general strategy to construct water-stable metal-organic frameworks(MOFs).In this work,we report for the first time the synthesis of a series of water-stable MOFs based on porphyrin and organotin moieties.The organic part of organotin protects the coordination bond fromattack effectively using water molecules.The structures and properties of three new materials with different types of topological networks(SnTCPP-SQL,SnTCPP-PTS,and SnTCPP-SHE)are described.SnTCPP-PTS exhibited exceptional superhydrophobicity with a water contact angle of 170°and high chemical stability in an aqueous solution at pH ranging from1 to 13.SnTCPP-SHE had a superhydrophobicity with a water contact angle of 165°,ranked as one with the highest Brunauer-Emmett-Teller(BET)surface area of 3940 m^(2) g^(−1) among all reported hydrophobic frameworks.These results reveal a facile approach to impart hydrophobicity to MOFs.We have also described the preparation of a unique hydrophobic and functionality fabric coated by nanoscale crystallites of SnTCPP-PTS.These coated fabrics have highly efficient oil-water separation capability.This work describes the first effort of applying organotin-driven engineering for superhydrophobic MOFs,advancing a novel concept for establishing a strategy for MOF design with controlled wettability for practical applications.

关 键 词：ORGANOTIN Sn-MOFs porphyrin-MOFs HYDROPHOBICITY oil-water separation 

分 类 号：O62[理学—有机化学]