Loading and release mechanisms of MOF-5 @ BTA-X (X =-CH3/-NH2/-CO (CH2)6CH3): Experimental and theoretical investigations

被引：10

作者：

Cao, Jiaojiao ^{[1
]}

Guo, Chengbin ^{[1
]}

Chen, Zhenyu ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Key Lab Mat Chem Energy Convers & Storage, Minist Educ, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Wuhan 430074, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2023年 / 666卷

基金：

中国国家自然科学基金;

关键词：

MOF-5; BTA; Delivery; EIS; Theoretical calculation; COPPER CORROSION-INHIBITOR; METAL-ORGANIC FRAMEWORK; BENZOTRIAZOLE; ADSORPTION; NANOPARTICLES; DELIVERY; REMOVAL; XPS; CARRIER; HYBRID;

D O I：

10.1016/j.colsurfa.2023.131274

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of MOF-5 @BTA-X (X =-CH3/-NH2/-CO(CH2)6CH3) anticorrosion composites was fabricated through loading benzotriazole derivatives in a metal-organic framework (i.e., MOF-5). Their crystal structures and morphologies were characterized by single-crystal X-ray diffraction analysis, Fourier transform infrared spec-troscopy, and transmission electron microscopy. The loading-releasing mechanisms between MOF-5 and BTA derivatives were revealed by experiments and theoretical calculations. Their anticorrosion performance for copper was also evaluated by electrochemical impedance spectroscopy and potentiodynamic polarization in 0.5 M NaCl. The corrosion product was analyzed via scanning electron microscopy and X-ray photoelectron spec-troscopy. The results indicated that the loading capacities followed the order of MOF-5 @BTA-NH2 > MOF-5 @BTA-CH3 > MOF-5 @BTA-CO(CH2)6CH3. The release rates followed the order of MOF-5 @BTA-NH2 < MOF-5 @BTA-CH3 < MOF-5 @BTA-CO(CH2)6CH3. Furthermore, the results of theoretical calculations indicated that the differences in loading capacities depended on the polarity of the functional group. Meanwhile, the strong binding force decreased the release rate.

引用

页数：14

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