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CdS/Ti₃C₂ heterostructure–based photoelectrochemical platform for sensitive and selective detection of trace amount of Cu²⁺

Ye, Cui and Xu, Fan and Ullah, Fateh and Wang, Minqiang (2022) CdS/Ti₃C₂ heterostructure–based photoelectrochemical platform for sensitive and selective detection of trace amount of Cu²⁺. Analytical and Bioanalytical Chemistry, 414 (12). pp. 3571-3580. ISSN 1618-2642. doi:10.1007/s00216-021-03870-y. https://resolver.caltech.edu/CaltechAUTHORS:20220126-933583800

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Abstract

Photoelectrochemical (PEC) detection as a potential development strategy for Cu²⁺ ion sensor has arisen extensive attention. Herein, CdS/Ti₃C₂ heterostructure was synthesized by electrostatically driven assembly and hydrothermal method. On the basis of a CdS/Ti₃C₂ heterostructure, a novel anodic PEC sensing platform was constructed for highly sensitive detection of trace amount of Cu²⁺. Carrier transport at the interface of CdS/Ti₃C₂ heterostructure was tremendously improved, due to the generation of effective Schottky junctions. Under visible light irradiation, the CdS/Ti₃C₂ heterostructure-modified PEC platform exhibits great anode photocurrent signal, and the formation of CuₓS reduces the PEC response with the presence of Cu²⁺ as a representative analyte. Thus, the linear response of Cu²⁺ ranges from 0.1 nM to 10 µM and the limits of detection (LOD, 0.05 nM) are obtained, which is lower than that of WHO’s Guidelines for Drinking-water Quality (30 μM). This idea of component reconstitution provides a new paradigm for the design of advanced PEC sensors.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/s00216-021-03870-yDOIArticle
https://rdcu.be/cFL8sPublisherFree ReadCube access
ORCID:
AuthorORCID
Ye, Cui0000-0001-7689-6825
Alternate Title:CdS/Ti3C2 heterostructure–based photoelectrochemical platform for sensitive and selective detection of trace amount of Cu2+
Additional Information:© Springer-Verlag GmbH Germany, part of Springer Nature 2021. Received 15 November 2021; Revised 20 December 2021; Accepted 23 December 2021; Published 04 January 2022. This work was supported by the National Natural Science Foundation of China (Grant No. 21904116), Natural Science Foundation of Zhejiang Provincial (LY22B050007), and the China Postdoctoral Science Foundation (2021M692863). The authors declare no competing interests.
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China21904116
Natural Science Foundation of Zhejiang ProvinceLY22B050007
China Postdoctoral Science Foundation2021M692863
Subject Keywords:Ti3C2 MXene; Photoelectrochemical; Schottky junction; Cu (II) sensing
Issue or Number:12
DOI:10.1007/s00216-021-03870-y
Record Number:CaltechAUTHORS:20220126-933583800
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220126-933583800
Official Citation:Ye, C., Xu, F., Ullah, F. et al. CdS/Ti3C2 heterostructure–based photoelectrochemical platform for sensitive and selective detection of trace amount of Cu2+. Anal Bioanal Chem 414, 3571–3580 (2022). https://doi.org/10.1007/s00216-021-03870-y
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113117
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Jan 2022 19:06
Last Modified:27 Apr 2022 19:28

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