期刊
RSC ADVANCES
卷 9, 期 50, 页码 29474-29481出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra05716a
关键词
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资金
- National Natural Science Foundation of China [21705103]
- Applied Basic Research Project of Shanxi Province [201801D221392]
- Graduate Education Innovation Project of Shanxi Province [2018SY057]
- Collaborative Innovation Center for Shanxi Advanced Permanent Materials and Technology [2019-05]
- 1331 Engineering of Shanxi Province
Ultrathin nickel-metal-organic framework (Ni-MOF) nanobelts, [Ni-20(C5H6O4)(20)(H2O)(8)]center dot 40H(2)O (Ni-MIL-77), have been exploited successfully for the fabrication of a non-enzymatic urea sensor. Ni-MOF ultrathin nanobelts in alkaline media can be used as an efficient catalyst for urea electrooxidation. As a non-enzymatic urea sensor, Ni-MOF ultrathin nanobelts exhibit a high sensitivity of 118.77 mu A mM(-1) cm(-2), wide linear range of 0.01-7.0 mM, and low detection limit of 2.23 mu M (S/N = 3). The selectivity, stability and reliability of ultrathin Ni-MOF nanobelts towards urea oxidation are also investigated. Moreover, Ni-MOF ultrathin nanobelts were further used to detect urea in human body fluids. All these findings confirm that the urea sensor based on Ni-MOF ultrathin nanobelts is successfully prepared and promising for applications in medical diagnostics and environmental monitoring.
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