TY - JOUR
T1 - Boron and nitrogen Co-doped carbon nanoparticles as photoluminescent probes for selective and sensitive detection of picric acid
AU - Sadhanala, Hari Krishna
AU - Nanda, Karuna Kar
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/6/11
Y1 - 2015/6/11
N2 - Here, we report the synthesis of boron and nitrogen Co-doped carbon nanoparticles (BN-CNPs) by a hydrothermal method using sucrose, boric acid, and urea as the precursors. The BN-CNPs show excellent photoluminescence with a quantum yield of ∼14.2% in aqueous solution and can be used as photoluminescent probes for selective and sensitive detection of picric acid (PA). PA quenches the photoluminescence signal remarkably, while other explosives cause a little quenching confirming the high selectivity of BN-CNPs. The sensitivity toward PA sensing is high at pH 7 and increases with temperature. The detection limit as well as the sensitivity are shown to improve by adding NaCl to the PA. The low detection limit can be as low as 10 nM at room temperature and pH 7, which indicates the BN-CNPs are superior as compared to other luminescent probes reported in the literature.
AB - Here, we report the synthesis of boron and nitrogen Co-doped carbon nanoparticles (BN-CNPs) by a hydrothermal method using sucrose, boric acid, and urea as the precursors. The BN-CNPs show excellent photoluminescence with a quantum yield of ∼14.2% in aqueous solution and can be used as photoluminescent probes for selective and sensitive detection of picric acid (PA). PA quenches the photoluminescence signal remarkably, while other explosives cause a little quenching confirming the high selectivity of BN-CNPs. The sensitivity toward PA sensing is high at pH 7 and increases with temperature. The detection limit as well as the sensitivity are shown to improve by adding NaCl to the PA. The low detection limit can be as low as 10 nM at room temperature and pH 7, which indicates the BN-CNPs are superior as compared to other luminescent probes reported in the literature.
UR - http://www.scopus.com/inward/record.url?scp=84931269276&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.5b04140
DO - 10.1021/acs.jpcc.5b04140
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AN - SCOPUS:84931269276
SN - 1932-7447
VL - 119
SP - 13138
EP - 13143
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 23
ER -