期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 245, 期 -, 页码 160-163出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2016.10.019
关键词
Metal-organic frameworks; UiO-66; Nanocrystals; Luminescent sensing
资金
- National Natural Science Foundation of China [51402261, 51602301, 51672251, 11674239, 61307069]
- Science Foundation of Zhejiang Sci-Tech University (ZSTU) [13012138-Y]
- Zhejiang Provincial Top Key Academic Discipline of Textile Science and Engineering
- Open Fund of Top priority disciplines in colleges and universities in Zhejiang Province, China [2015KF20]
Zr-based MOF structure UiO-66 exhibits unprecedented high thermal and chemical stability, making it to be one of the most used MOFs in various applications. Yet, the poor photoluminescent (PL) properties of UiO-66 limit its applications in luminescent sensing. Herein, a new benzimidazole-functionalized UiO-66 nanocrystal (UiO-66-BI) was successfully fabricated via microwave synthesis. UiO-66-BI displayed octahedral nanocrystal morphology with a diameter smaller than 200 nm and could disperse well in water and common organic solvents. UiO-66-BI demonstrated extended optical absorption in the visible-light region and efficiently improved PL emission compared with UiO-66 pristine. The sensing properties of UiO-66-BI nanocrystals towards different ions were studied, and the results demonstrated that UiO-66-BI showed excellent selective luminescent sensing of Fe3+ ions in water.
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