Constructing Stable and Porous Covalent Organic Frameworks for Efficient Iodine Vapor Capture

被引：47

作者：

Zhai, Lipeng ^{[1
]}

Han, Diandian ^{[1
]}

Dong, Jinhuan ^{[2
]}

Jiang, Wenqian ^{[3
]}

Nie, Riming ^{[4
]}

Yang, Xiubei ^{[1
]}

Luo, Xiaolong ^{[5
]}

Li, Zhongping ^{[4
]}

机构：

[1] Zhongyuan Univ Technol, Ctr Adv Mat Res, Henan Key Lab Funct Salt Mat, Zhengzhou 450007, Peoples R China

[2] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Mol & Nano Probes,Minist Educ,Inst Mol &, Collaborat Innovat Ctr Functionalized Probes Chem, Jinan 250014, Peoples R China

[3] Donghua Univ, Coll Mat Sci & Engn, 2999 North Renmin Rd, Shanghai 201620, Peoples R China

[4] Ulsan Natl Inst Sci & Technol, Sch Energy & Chem Engn, 50 UNIST, Ulsan 44919, South Korea

[5] Changchun Univ Technol, Adv Inst Mat Sci, Sch Chem & Biol, Changchun 130012, Peoples R China

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2021年 / 42卷 / 13期

基金：

中国国家自然科学基金;

关键词：

covalent organic frameworks; iodine vapor capture; porosity; stability; GAS-STORAGE; HIGHLY EFFICIENT; VOLATILE IODINE; CRYSTALLINE; ADSORPTION; POLYMERS;

D O I：

10.1002/marc.202100032

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Covalent organic frameworks (COF) with periodic porous structures and tunable functionalities are a new class of crystalline polymers connected via strong covalent bonds. Constructing COF materials with high stability and porosity is attracting and essential for COFs' further functional exploration. In this work, two new covalent organic frameworks (TTA-TMTA-COF and TTA-FMTA-COF) with high surface area, large pore volume, and excellent chemical stability toward harsh conditions are designed and synthesized by integrating the methoxy functional groups into the networks. Both two COFs are further employed for iodine removal since radioactive iodine in nuclear waste has seriously threatened the natural environment and human health. TTA-TMTA-COF and TTA-FMTA-COF can capture 3.21 and 5.07 g g(-1) iodine, respectively. Notably, the iodine capture capacity for iodine of TTA-FMTA-COF does not show any decline after being recycled five times. These results demonstrate both COFs possess ultrahigh capacity and excellent recyclability.

引用

页数：7