TY  - JA
AU  - Guohua Dong
AU  - Kun Lang
AU  - He Ouyang
AU  - Wenzhi Zhang
AU  - Liming Bai
AU  - Shijie Chen
AU  - Zhuanfang Zhang
AU  - Yueyue Gao
AU  - Zhonghua Mu
AU  - Xiaodan Zhao
TI  - Facile synthesis of N, P-doped carbon dots from maize starch via a solvothermal approach for the highly sensitive detection of Fe3+
SN  - 2046-2069
PY  - 2020///
CY  - United Kingom
PB  - Royal Society of Chemistry
KW  - AGROVOC
KW  - Carbon
KW  - Nanomaterials
KW  - Fluorescence
N1  - Peer review; Open Access
N2  - Nitrogen/phosphorus-doped carbon dots (N, P-CDs) with a quantum yield as high as 76.5% were synthesized by carbonizing maize starch via a facile ethanol solvothermal approach. Transmission electron microscopy (TEM) measurement shows that the as-prepared N, P-CDs displayed a quasi-spherical shape with a mean size of ca. 2.5 nm. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy disclosed the presence of –OH, –NH2, –COOH, and –CO functional groups over the surface of N, P-CDs. On the basis of excellent fluorescent properties with strong blue fluorescence emission at 445 nm upon excitation at 340 nm, these N, P-CDs were adopted as a fluorescent probe towards the effective detection of Fe3+ ions in water. The limit of detection (LOD) was as low as 0.1 μmol L−1 and showed a better linear relationship in the range of 0.1 ∼ 50 μmol L−1. In conclusion, these synthesized N, P-CDs can be efficiently used as a promising candidate for the detection of Fe3+ ions in some practical samples
UR  - https://doi.org/10.1039/D0RA06209J
T2  - RSC Advances
DO  - https://doi.org/10.1039/D0RA06209J
ER  -