期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 1, 期 6, 页码 1105-1110出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2tc00359g
关键词
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资金
- National Natural Science Foundation of China [21275015, 20175009]
- State Key Project of Fundamental Research of China [2011CB932403]
- Program for New Century Excellent Talents in University of China [NCET-10-0213]
Via a facile one-pot strategy, polyaspartate (PASP) coated LaF3:Ce3+/Tb3+ luminescent nanocrystals have been successfully prepared. Based on the luminescence quenching of the PASP modified LaF3:Ce3+/Tb3+ nanocrystals by Fe3+, a simple and novel luminescent chemosensor for Fe3+ has been developed. High selectivity and sensitivity is observed over other cations, which is mainly attributed to the formation of a PASP-Fe3+ complex on the NP surface. The luminescence of the suspensions was gradually quenched with the addition of Fe3+ ion, with a linear range of 5 x 10(-7) to 1 x 10(-4) mol L-1.
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