Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 19, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-017-3888-5
Keywords
Carbon dots; Cornstalk; Hydrothermal treatment; Fe2+; Hydrogen peroxide; Environmental effects
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Funding
- National Natural Science Foundation of China [21265014, 21365015, 21567021]
- University Science and Technology Research Project of Ningxia [NGY2015050]
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In this paper, the green synthesis of fluorescent carbon dots (CDs) via one- step hydrothermal treatment of cornstalk was investigated. This approach is facile, economical, and effective. The obtained CDs with an average diameter of 5.2 nm possess many excellent properties such as emitting blue fluorescence under UV light (365 nm), high monodispersity, good stability, excellent water dispersibility, and absolute quantum yield of 7.6%. Then, these CDs were used as sensing probes for the detection of Fe2+ and H2O2 with detection limits as low as 0.18 and 0.21 mu M, respectively. This sensing platform shows advantages such as high selectivity, good precision, rapid operation, and avoiding the precipitation of iron oxyhydroxides.
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