TY - JOUR
T1 - A novel photoelectrochemical sensor based on g-C3N4@CdS QDs for sensitive detection of Hg2+
AU - Li, Zhongping
AU - Dong, Wenxia
AU - Du, Xiaoyu
AU - Wen, Guangming
AU - Fan, Xiujun
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1
Y1 - 2020/1
N2 - Graphite carbonitride (g-C3N4) is one of the ideal metal-free semiconductors for photocatalysis, quantum dots are excellent photoelectrically active materials, and both have broad application prospects in photoelectrochemical (PEC) devices. In this work, a novel photoelectrochemical (PEC) sensor was latest employed based on the complex of g-C3N4 and CdS QD (g-C3N4@CdS) fixated on a tin oxyfluoride (FTO) electrode for discovering Hg2+. The PEC system showed a good linear range of 20–550 nM, with a detection limit of 12 nM. The possible mechanism is signal shutdown strategy based on a lower sedimentation equilibrium constant of HgS. Thus, the g-C3N4@CdS based PEC sensor had positive effect on solving some issues, such as complicated operation, in the detection of Hg2+.
AB - Graphite carbonitride (g-C3N4) is one of the ideal metal-free semiconductors for photocatalysis, quantum dots are excellent photoelectrically active materials, and both have broad application prospects in photoelectrochemical (PEC) devices. In this work, a novel photoelectrochemical (PEC) sensor was latest employed based on the complex of g-C3N4 and CdS QD (g-C3N4@CdS) fixated on a tin oxyfluoride (FTO) electrode for discovering Hg2+. The PEC system showed a good linear range of 20–550 nM, with a detection limit of 12 nM. The possible mechanism is signal shutdown strategy based on a lower sedimentation equilibrium constant of HgS. Thus, the g-C3N4@CdS based PEC sensor had positive effect on solving some issues, such as complicated operation, in the detection of Hg2+.
KW - CdS quantum dots (CdS QDs)
KW - Graphite carbonitride (g-CN)
KW - Hg
KW - Photoelectrochemical
UR - https://www.scopus.com/pages/publications/85073376347
U2 - 10.1016/j.microc.2019.104259
DO - 10.1016/j.microc.2019.104259
M3 - 文章
AN - SCOPUS:85073376347
SN - 0026-265X
VL - 152
JO - Microchemical Journal
JF - Microchemical Journal
M1 - 104259
ER -