Ultrastable Thorium Metal-Organic Frameworks for Efficient Iodine Adsorption

被引：125

作者：

Li, Zi-Jian ^{[1
,2
]}

Yue, Zenghui ^{[1
,2
]}

Ju, Yu ^{[1
,2
,3
]}

Wu, Xiaoling ^{[1
]}

Ren, Yiming ^{[4
]}

Wang, Shaofei ^{[4
]}

Li, Yongxin ^{[5
]}

Zhang, Zhi-Hui ^{[3
]}

Guo, Xiaofeng ^{[6
]}

Lin, Jian ^{[1
,2
]}

Wang, Jian-Qang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China

[3] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China

[4] China Acad Engn Phys, Inst Mat, Mianyang 621907, Sichuan, Peoples R China

[5] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore

[6] Washington State Univ, Dept Chem, Pullman, WA 99164 USA

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 07期

基金：

中国国家自然科学基金;

关键词：

VOLATILE IODINE; COORDINATION; CAPTURE; POLYMERS; SORPTION;

D O I：

10.1021/acs.inorgchem.9b03602

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two novel thorium-based metal-organic frameworks (MOFs), namely Th-SINAP-7 and Th-SINAP-8, have been synthesized via the solvothermal reactions of thorium nitrate and 1,4- or 2,6-naphthalenedicarboxylic acid in the presence of acid modulators. Bearing the rigid aromatic architectures, Th-SINAP-7 and Th-SINAP-8 exhibit exceptional chemical (from pH 1 to 12) and thermal stabilities (up to 520 degrees C), as well as ionizing radioresistance (2 X 10(5) Gy beta and gamma irradiations). The highly porous nature and conjugated pi-electrons of naphthalene on the organic linkers endow high affinity of both MOFs toward I-2 molecules owning to the charge transfer between pi-electrons of the host networks and the guest iodine molecules, as evidenced by combined techniques including of FTIR, PXRD, SEM-EDS, UV-vis spectroscopy, XPS, and Raman spectroscopy. Particularly, Th-SINAP-8 can efficiently remove >99% I-2 from cyclohexane solution and exhibit guest uptake of iodine vapor with an adsorption capacity of 473 mg/g.

引用

页码：4435 / 4442

页数：8

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