Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (6): 1384.doi: 10.7503/cjcu20200021

• Material Chemistry • Previous Articles     Next Articles

A Photoresponsive Azobenzene-functionalized Covalent Organic Framework

LI Shanshan,ZHAO Wenjuan,LI Hui,FANG Qianrong*()   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2020-01-10 Online:2020-06-10 Published:2020-03-06
  • Contact: Qianrong FANG E-mail:qrfang@jlu.edu.cn
  • Supported by:
    † National Natural Science Foundation of China(21571079)

Abstract:

Covalent organic frameworks(COFs) with high specific surface area, regular structure, and modi-fiable pore channels, are crystalline porous organic polymers and have been widely used in various fields. Azobenzene derivatives with light isomerization characteristics are important stimulus-responsive materials. Herein we report a method of postsynthetic modification for the preparation of photothermal responsive azobenzene-functionalized COF, denoted as JUC-501(JUC=Jilin University China), which based on introducing small azobenzene molecules into the channels of COF(JUC-500). Under ultraviolet irradiation and heating conditions, the COF with azobenzene in the pores will undergo reversible cis-trans isomerization reaction and exhibits excellent reversible capture and release properties for methyl orange(MO).

Key words: Covalent organic frameworks, Azobenzene, Photothermal response, Methyl orange, Reversible capture and release

CLC Number: 

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