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Hierarchical Ti-MOF Microflowers for Synchronous Removal and Fluorescent Detection of Aluminum Ions

文献类型：期刊论文

作者Zhou, Jianguo1,3,4; Song, Jieyao2,4; Ma, Guangqiang5; Li, Yongjian4; Wei, Yanan4; Liu, Fei4; Zhou, Hongjian1,2,3,4
刊名BIOSENSORS-BASEL
出版日期2022-11-01
卷号12
关键词luminescence metal-organic frameworks hierarchical nanostructures fluorescent sensors metal ions
DOI10.3390/bios12110935
通讯作者Zhou, Hongjian(hjzhou@issp.ac.cn)
英文摘要Bifunctional luminescence metal-organic frameworks with unique nanostructures have drawn ongoing attention for simultaneous determination and elimination of metal ions in the aqueous environment, but still remain a great challenge. In this work, three-dimensional hierarchical titanium metal-organic framework (Ti-MOF) microflowers were developed by a secondary hydrothermal method for not only highly sensitive and selective detection of Al(III), but also simultaneously efficient decontamination. The resulting Ti-MOF microflowers with a diameter of 5-6 mu m consisted of nanorods with a diameter of similar to 200 nm and a length of 1-2 mu m, which provide abundant, surface active sites for determination and elimination of Al(III) ions. Because of their substantial specific surface area and superior fluorescence characteristics, Ti-MOF microflowers are used as fluorescence probes for quantitative determination of Al(III) in the aqueous environment. Importantly, the specific FL enhancement by Al(III) via a chelation-enhanced fluorescence mechanism can be utilized for selective and quantitative determination of Al(III). The Al(III) detection has a linear range of 0.4-15 mu M and a detection limit as low as 75 nM. By introducing ascorbic acid, interference of Fe(III) can be avoided to achieve selective detection of Al(III) under various co-existing cations. It is noteworthy that the Ti-MOF microflowers exhibit excellent adsorption capacity for Al(III) with a high adsorption capacity of 25.85 mg g(-1). The rapid adsorption rate is consistent with a pseudo-second order kinetic model. Ti-MOF is a promising contender as an adsorbent and a fluorescent chemical sensor for simultaneous determination and elimination of Al(III) due to its exceptional water stability, high porosity, and intense luminescence.
WOS关键词METAL-ORGANIC FRAMEWORK ; AQUEOUS-MEDIA ; SENSITIVE DETECTION ; AL3+ IONS ; SENSOR ; PROBE ; CHEMOSENSOR ; NANOCLUSTERS ; EQUILIBRIUM ; ADSORPTION
资助项目National Natural Science Foundation of China[51502296] ; National Natural Science Foundation of China[51872291] ; Key research and development projects of Anhui Province[202104a06020028] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP012] ; presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJZX202019]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation
语种英语
出版者MDPI
WOS记录号WOS:000885815500001
资助机构National Natural Science Foundation of China ; Key research and development projects of Anhui Province ; Collaborative Innovation Program of Hefei Science Center, CAS ; presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131673]  
专题中国科学院合肥物质科学研究院
通讯作者Zhou, Hongjian
作者单位1.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
3.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China
4.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Inst Solid State Phys,HFIPS, Key Lab Mat Phys,Anhui Key Lab Nanomat & Nanotech, Hefei 230031, Peoples R China
5.Xian Univ Architecture & Technol, Sch Mech & Elect Engn, Xian 710055, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Jianguo,Song, Jieyao,Ma, Guangqiang,et al. Hierarchical Ti-MOF Microflowers for Synchronous Removal and Fluorescent Detection of Aluminum Ions[J]. BIOSENSORS-BASEL,2022,12.
APA Zhou, Jianguo.,Song, Jieyao.,Ma, Guangqiang.,Li, Yongjian.,Wei, Yanan.,...&Zhou, Hongjian.(2022).Hierarchical Ti-MOF Microflowers for Synchronous Removal and Fluorescent Detection of Aluminum Ions.BIOSENSORS-BASEL,12.
MLA Zhou, Jianguo,et al."Hierarchical Ti-MOF Microflowers for Synchronous Removal and Fluorescent Detection of Aluminum Ions".BIOSENSORS-BASEL 12(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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