MOF-199中多孔结构和不饱和金属位对CH3I吸附的协同影响

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-08-05 DOI:10.1007/s10967-025-10299-5

Yao Liu, Yiming Wang, Jie Liu, Ju Shangguan, Song Yang, Chao Yang, Kunjun Wang

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引用次数: 0

摘要

本研究考察了MOF-199吸附CH3I的孔结构和金属中心。引入苯甲酸构建缺陷改变了微孔体积，表明微孔结构增强了碘甲烷吸附过程。对金属中心的研究表明，不饱和金属位点在吸附中起主导作用，Cu⁺对于强化学吸附至关重要。在134 ppm和303 K条件下，MOF-199对CH3I的吸附量为156.7 mg/g。热力学和动力学分析分别表明，该过程主要受化学吸附和颗粒内扩散控制。

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The synergistic influence of porous structure and unsaturated metal sites in MOF-199 on CH3I adsorption

In this study, MOF-199 is investigated for CH₃I adsorption by pore structure and metal centers. The introduction of benzoic acid to construct defects alters the micropore volume, indicating that the microporous structure enhances the iodomethane adsorption process. Studies on metal centers have demonstrated that unsaturated metal sites play a dominant role in adsorption, with Cu⁺ being crucial for strong chemisorption. Under conditions of 134 ppm and 303 K, MOF-199 achieves a CH₃I adsorption capacity of 156.7 mg/g. Thermodynamic and kinetic analyses respectively indicate that the process is predominantly governed by chemisorption and controlled by intraparticle diffusion.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.