A New Porphyrin-based Covalent Organic Framework with High Iodine Capture Capacity and I-doping Enhanced Conductivity.

Li, Yan; Cui, Guoxin; Cai, Xue; Yun, Guan; Zhao, Yongzheng; Jiang, Li; Cui, Shuxin; Zhang, Jinghan; Liu, Minghao; Zeng, Weiqi; Wang, Zhenlu; Jiang, Jian

Li, Yan; Cui, Guoxin; Cai, Xue; Yun, Guan; Zhao, Yongzheng; Jiang, Li; Cui, Shuxin; Zhang, Jinghan; Liu, Minghao; Zeng, Weiqi; Wang, Zhenlu; Jiang, Jian.

Afiliação

Li Y; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Cui G; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Cai X; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Yun G; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Zhao Y; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Jiang L; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Cui S; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Zhang J; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Liu M; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Zeng W; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.
Wang Z; Institute of Physical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun, 130021, China.
Jiang J; Heilongjiang Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang, 157011, P. R. China.

Chemistry ; 30(15): e202303688, 2024 Mar 12.

Article em En | MEDLINE | ID: mdl-38102885

ABSTRACT

ABSTRACT

Covalent organic frameworks (COFs) are porous organic materials with well-defined and uniform structure. The material is an excellent candidate as a solid adsorbent for iodine adsorption. In the present study, we report the synthesis of COF with porphyrin moiety, TF-TA-COF, by solvothermal reaction, which was characterized by XRD, solid-state 13 C NMR, IR, TGA, and nitrogen adsorption-desorption analysis. TF-TA-COF showed a high specific surface area of 443âm2 g-1 , and exhibited good adsorption performance for iodine vapor, with an adsorption capacity of 2.74âg g-1 . XPS and Raman spectrum indicated that a hybrid of physisorption and chemisorption took place between host COF and iodine molecules. The electric properties of iodine-loaded TF-TA-COF were also studied. After doped with iodine, the conductivity of the material increased by more than 5 orders of magnitude. The photoconductivity of I2 -doped COF was also studied and TF-TA-COF showed doping-enhanced photocurrent generation.

Palavras-chave

COF; conductivity; iodine adsorption; iodine doping; photocurrent

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Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: Chemistry Assunto da revista: QUIMICA Ano de publicação: 2024 Tipo de documento: Article