TY - JOUR
T1 - Constructing carbon dots and CdTe quantum dots multi-functional composites for ultrasensitive sensing and rapid degrading ciprofloxacin
AU - Liu, Xiqing
AU - Wang, Tao
AU - Lu, Yang
AU - Wang, Wenjuan
AU - Zhou, Zhiping
AU - Yan, Yongsheng
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/6/15
Y1 - 2019/6/15
N2 - The sensitive monitoring and rapid removal antibiotics residues are great challenges and hugely significant for the environmental protection. In this work, a green and facile strategy was obtained for the fabrication of highly fluorescent carbon dots (CDs) through hydrothermal treatment of osmanthus fragrans leaves as carbon source and polyethyleneimine as nitrogen source. Then the prepared blue CDs were combined with red CdTe quantum dots (QDs) for constructing MIPs@CdTe/CDs@SiO2 was applied to selectively and sensitively assay ciprofloxacin (CIP) and TiO2/CDs/CdTe QDs as photocatalyst for the degradation of CIP. Under optimum conditions, MIPs@CdTe/CDs@SiO2 has exhibited lower detection limit of 0.0127 nM with the linear range of 0–60 nM, and successfully applied to monitor CIP in human urine samples. Moreover, the TiO2/CDs/CdTe QDs also displayed good photocatalytic degradation of activity to CIP under sunlight irradiation. This present work which was rational constructed materials based on CDs and CdTe QDs illustrates the great practicability and potential to rapid and efficient determination and removal environmental pollutants in the future.
AB - The sensitive monitoring and rapid removal antibiotics residues are great challenges and hugely significant for the environmental protection. In this work, a green and facile strategy was obtained for the fabrication of highly fluorescent carbon dots (CDs) through hydrothermal treatment of osmanthus fragrans leaves as carbon source and polyethyleneimine as nitrogen source. Then the prepared blue CDs were combined with red CdTe quantum dots (QDs) for constructing MIPs@CdTe/CDs@SiO2 was applied to selectively and sensitively assay ciprofloxacin (CIP) and TiO2/CDs/CdTe QDs as photocatalyst for the degradation of CIP. Under optimum conditions, MIPs@CdTe/CDs@SiO2 has exhibited lower detection limit of 0.0127 nM with the linear range of 0–60 nM, and successfully applied to monitor CIP in human urine samples. Moreover, the TiO2/CDs/CdTe QDs also displayed good photocatalytic degradation of activity to CIP under sunlight irradiation. This present work which was rational constructed materials based on CDs and CdTe QDs illustrates the great practicability and potential to rapid and efficient determination and removal environmental pollutants in the future.
KW - Carbon dots
KW - Ciprofloxacin
KW - Fluorescent detection
KW - Molecular imprinting
KW - Photocatalytic degradation
KW - Ratiometric fluorescence sensor
UR - https://www.scopus.com/pages/publications/85063475431
U2 - 10.1016/j.snb.2019.03.094
DO - 10.1016/j.snb.2019.03.094
M3 - 文章
AN - SCOPUS:85063475431
SN - 0925-4005
VL - 289
SP - 242
EP - 251
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
ER -