Hydro-modulator induced defective structure and hieratical pores in UiO-66 for efficient adsorption and catalysis

被引:0
|
作者
Lu, Deshuang [2 ,3 ]
Cheng, Zhonghan [2 ,3 ]
Klomkliang, Nikom [5 ]
Koo-amornpattana, Wanida [1 ]
Verpoort, Francis [2 ,4 ,6 ]
Chaemchuen, Somboon [1 ,2 ]
机构
[1] Mahidol Univ, Fac Engn, Dept Chem Engn, Nakhon Pathom 73170, Thailand
[2] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[3] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[4] Peoples Friendship Univ Russia, RUDN Univ, Joint Inst Chem Res FFMiEN, 6 Miklukho Maklaya Str, Moscow 117198, Russia
[5] Suranaree Univ Technol, Sch Chem Engn, Nakhon Ratchasima 30000, Thailand
[6] Natl Res Tomsk Polytech Univ, Lenin Ave 30, Tomsk 634050, Russia
关键词
UiO-66; Hierarchical structure; Coordination chemistry; Defect structure; Adsorption; Catalyst; METAL-ORGANIC FRAMEWORKS; REMOVAL; GROWTH; TIO2; ACID;
D O I
10.1016/j.mtchem.2024.102420
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Organic linkers are typically controlled to create the micropore structure when synthesizing metalorganic frameworks (MOFs). However, developing a hierarchical pore structure is beneficial for improving the efficiency of MOFs in various applications. This study investigates a green strategy using a water modulator that competes with the terephthalic ligand to coordinate with zirconium clusters, thereby accessing open sites for hierarchical micro- and mesopores in UiO-66. Using a hydro-modulator induced the formation of a mesoporous structure and enhanced the hydrophilic properties of UiO-66-X due to the presence of hydroxyl groups. Also, model calculations using density functional theory (DFT) support the observed structural chemical geometry. The advantages of a hierarchical pore structure, increased hydrophilicity, and the presence of open sites in the robust structure of UiO-66-X led to a significant enhancement in both antibiotic adsorption and the catalytic activity of ring-opening epoxide reactions compared to the pristine microporous UiO-66. Therefore, utilizing water as a green modulator presents a simple and environmentally friendly approach to introducing hierarchical pore structures in MOFs. It offers a promising strategy for enhancing their performance across various applications.
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页数:11
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