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- W2049315954 abstract "Here we report a new strategy for preparation of water-soluble photoluminescent carbon quantum dots (CQDs) from petroleum coke. Petroleum coke was oxidized first in mixed concentrated H2SO4 and HNO3, and then functionalized by hydrothermal ammonia treatment. The as-made CQDs and nitrogen-doped CQDs (N-CQDs) were characterized by UV–Vis absorption spectroscope, fluorescence spectroscope, transmission electron microscope, atomic force microscope, Raman spectrometer, X-ray powder diffractometer, X-ray photoelectron spectroscope and Fourier transform infrared spectrometer. The results show that the quantum yield of CQDs increases greatly from 8.7 to 15.8%, and the fluorescent lifetime increases from 3.86 to 6.11 ns after the hydrothermal treatment in ammonia. Moreover, the fluorescent color of N-CQDs can be tuned through the amount of doped nitrogen. Both CQDs and N-CQDs are water-soluble, and have uniform particle distribution, strong luminescence, and highly fluorescent sensitivity to pH in a range of 2.0–12.0. The uniform size distribution and nitrogen-doping of N-CQDs help to lead to high yield of radiative recombination, resulting in improved fluorescence properties. This work offers a simple pathway to produce high quality and enhanced photoluminescent CQDs from petroleum coke." @default.
- W2049315954 created "2016-06-24" @default.
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- W2049315954 date "2014-11-01" @default.
- W2049315954 modified "2023-10-11" @default.
- W2049315954 title "Preparation of functionalized water-soluble photoluminescent carbon quantum dots from petroleum coke" @default.
- W2049315954 cites W1965114351 @default.
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- W2049315954 cites W1973139588 @default.
- W2049315954 cites W1981664052 @default.
- W2049315954 cites W1983572892 @default.
- W2049315954 cites W1984990803 @default.
- W2049315954 cites W1986410538 @default.
- W2049315954 cites W1991246251 @default.
- W2049315954 cites W1991475368 @default.
- W2049315954 cites W1992799161 @default.
- W2049315954 cites W1992927340 @default.
- W2049315954 cites W1996672400 @default.
- W2049315954 cites W2001757270 @default.
- W2049315954 cites W2001989638 @default.
- W2049315954 cites W2002054856 @default.
- W2049315954 cites W2005772594 @default.
- W2049315954 cites W2008882088 @default.
- W2049315954 cites W2016810565 @default.
- W2049315954 cites W2017611256 @default.
- W2049315954 cites W2018391113 @default.
- W2049315954 cites W2020762330 @default.
- W2049315954 cites W2025946022 @default.
- W2049315954 cites W2032255372 @default.
- W2049315954 cites W2032407751 @default.
- W2049315954 cites W2043633210 @default.
- W2049315954 cites W2047816702 @default.
- W2049315954 cites W2049876233 @default.
- W2049315954 cites W2051555740 @default.
- W2049315954 cites W2052544945 @default.
- W2049315954 cites W2057097501 @default.
- W2049315954 cites W2070565913 @default.
- W2049315954 cites W2074802901 @default.
- W2049315954 cites W2084704674 @default.
- W2049315954 cites W2093765687 @default.
- W2049315954 cites W2095211759 @default.
- W2049315954 cites W2097951284 @default.
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- W2049315954 cites W2107743917 @default.
- W2049315954 cites W2111330887 @default.
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- W2049315954 cites W2123036307 @default.
- W2049315954 cites W2125934194 @default.
- W2049315954 cites W2128713406 @default.
- W2049315954 cites W2130660680 @default.
- W2049315954 cites W2132691526 @default.
- W2049315954 cites W2133020370 @default.
- W2049315954 cites W2135627479 @default.
- W2049315954 cites W2135984381 @default.
- W2049315954 cites W2153005473 @default.
- W2049315954 cites W2160718460 @default.
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- W2049315954 cites W2168935072 @default.
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- W2049315954 cites W2330147221 @default.
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- W2049315954 cites W2950418024 @default.
- W2049315954 cites W4237487151 @default.
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- W2049315954 doi "https://doi.org/10.1016/j.carbon.2014.07.029" @default.
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