期刊
CHEMICAL SCIENCE
卷 7, 期 6, 页码 3564-3568出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc00085a
关键词
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资金
- State Basic Research Project of China [2014CB931802]
- National Natural Science Foundation of China [21271081, 91122029, 21320102001]
Hydrophilic N-doped carbogenic nanodots (denoted as CNDs) have been prepared from a N-methylpiperazine-templated zeolite precursor by calcination and NaOH treatment. The isolated CNDs exhibit tunable photoluminescence according to the concentration and pH value of aqueous dispersions of the CNDs. Fine-tuning of the fluorescence emission wavelength across the entire visible spectrum can be easily achieved by varying the concentration of the CND dispersions. Meanwhile, both the emission wavelength and intensity of the photoluminescence can be tuned by controlling the pH value of the CND dispersion. The pyrolysis of organic templates confined in nanoporous zeolites represents a new approach to controlling the optical properties of CNDs, which may open more opportunities in applications such as multimodal sensing and full-color displays.
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