A light-driven photoelectrochemical sensor for highly selective detection of hydroquinone based on type-II heterojunction formed by carbon nanotubes immobilized in 3D honeycomb CdS/SnS2

被引：33

作者：

Huang, Linzi ^{[1
,4
]}

Wang, Chenxi ^{[1
,3
]}

Yang, Yaqi ^{[2
]}

Wang, Yilin ^{[1
]}

Li, Chunyan ^{[1
]}

Xie, Yixi ^{[2
]}

Zhao, Pengcheng ^{[1
,5
]}

Fei, Junjie ^{[1
,3
,4
,5
]}

机构：

[1] Xiangtan Univ, Coll Chem, Key Lab Environmentally Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China

[2] Xiangtan Univ, Key Lab Green Organ Synth & Applicat Hunan Prov, Xiangtan 411105, Peoples R China

[3] Xiangtan Univ, Hunan Inst Adv Sensing & Informat Technol, Xiangtan 411105, Peoples R China

[4] East China Normal Univ, Key Lab Polar Mat & Devices, Minist Educ, Shanghai 200241, Peoples R China

[5] Xiangtan Univ, Coll Chem, Xiangtan, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2023年 / 643卷

基金：

中国国家自然科学基金;

关键词：

Photoelectrochemical sensor; Hydroquinone; CdS; SnS2; Carbon nanotubes; Water samples; PHENOL; CHEMILUMINESCENCE; DEGRADATION; FABRICATION; WATER; OXIDE;

D O I：

10.1016/j.jcis.2023.03.141

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The ecological environment and public safety are seriously threatened by the typical phenolic contaminant hydroquinone (HQ). Here, using a straightforward physical mixing technique, we created an n-n heterojunction by uniformly immobilizing cadmium sulfide (CdS) nanoparticles on the surface of a three-dimensionally layered, flower-like structure made of tin sulfide (SnS2). Then, as photosensitizers, carbon nanotubes (CNTs) were added to the CdS/SnS2 complex to create a type-II heterostructure of CdS/SnS2/CNTs with synergistic effects. Subsequently, the detector HQ was bound to the modified photoelectrodes, which was accompanied by the hole oxidation of the bound HQ, leading to a significant increase in the photocurrent signal, thus allowing specific and sensitive detection of HQ. Under optimized detection conditions, the proposed photoelectrochemical sensor shows a wide detection range of 0.2 to 100 lM for HQ with a detection limit as low as 0.1 lM. The high accuracy of the sensor was demonstrated by comparison with the detection results of UV-vis spectrophotometry. In addition, the photoelectrochemical sensor exhibits good reproducibility, stability, selectivity, and specificity, providing a light-driven method to detect HQ. (c) 2023 Elsevier Inc. All rights reserved.

引用

页码：585 / 599

页数：15

共 56 条

[31] A promising electrochemical sensing platform based on ternary composite of polyaniline-Fe2O3-reduced graphene oxide for sensitive hydroquinone determination [J].