Graphene Oxide Quantum Dots Derived from Coal for Bioimaging: Facile and Green Approach
SCIENTIFIC REPORTS(2019)
摘要
Graphene oxide quantum dots (GOQDs) are usually prepared using expensive carbon precursors such as carbon nanotubes (CNT) or graphene under the strong acidic condition, which requires an additional purifying process. Here, we first develop a facile pulsed laser ablation in liquid (PLAL) technique for preparing GOQDs using earth-abundant and low-cost coal as a precursor. Only ethanol and coal are used to produce GOQDs with excellent optical properties. The prepared GOQDs exhibit excellent optoelectronic properties which can be successfully utilized in bioimaging applications.
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关键词
Nanophotonics and plasmonics,Synthesis of graphene,Science,Humanities and Social Sciences,multidisciplinary
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