A 3D Covalent Organic Framework with Exceptionally High Iodine Capture Capability

被引：294

作者：

Wang, Chang ^{[1
]}

Wang, Yu ^{[1
]}

Ge, Rile ^{[1
]}

Song, Xuedan ^{[4
]}

Xing, Xueqing ^{[5
]}

Jiang, Qike ^{[1
]}

Lu, Hui ^{[1
]}

Hao, Ce ^{[4
]}

Guo, Xinwen ^{[4
]}

Gao, Yanan ^{[1
,3
,4
]}

Jiang, Donglin ^{[2
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China

[2] Japan Adv Inst Sci & Technol, Field Environm & Energy, Sch Mat Sci, 1-1 Asahidai Nomi, Nomi 9231292, Japan

[3] Hainan Univ, Key Lab, Minist Educ Adv Mat Trop Isl Resources, 58 Renmin Ave, Haikou 570228, Hainan, Peoples R China

[4] Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China

[5] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, 39 Yuquan Rd, Beijing 100049, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2018年 / 24卷 / 03期

基金：

中国国家自然科学基金;

关键词：

adsorbent; covalent organic framework; iodine; nuclear energy; porous materials; VOLATILE IODINE; CARBON-DIOXIDE; ELECTRICAL-CONDUCTIVITY; PROTON CONDUCTION; ACTIVATED CARBONS; SINGLE-CRYSTAL; ADSORPTION; POLYMERS; SORPTION; STORAGE;

D O I：

10.1002/chem.201705405

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using porous materials to cope with environmental issues is promising but remains a challenge especially for removing the radioactive vapor wastes in fission because of harsh adsorption conditions. Here we report a new, stable covalent organic framework (COF) as a porous platform for removing iodine vapor-a major radioactive fission waste. The three-dimensional COF consists of a diamond topology knotted by adamantane units, creates ordered one-dimensional pores and are highly porous. The COF enables the removal of iodine vapor via charge transfer complex formation with the pore walls to achieve exceptional capacity. Moreover, the 3D COF is "soft" to trigger structural fitting to iodine while retaining connectivity and enables cycle use for many times while retaining high uptake capacity. These results set a new benchmark for fission waste removal and suggest the great potential of COFs as a designable porous material for challenging world-threatening pollution issues.

引用

页码：585 / 589

页数：5

共 51 条

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