Graphitic carbon nitride as electrode sensing material for tetrabromobisphenol-A determination

被引：68

作者：

Zhao, Qiang ^{[1
,2
,3
]}

Wu, Weixiang ^{[1
,2
,3
]}

Wei, Xiaoyun ^{[1
,2
,3
]}

Jiang, Shunli ^{[1
,2
,3
]}

Zhou, Tong ^{[1
,2
,3
]}

Li, Qing ^{[4
]}

Lu, Qing ^{[1
,2
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Key Lab Environm & Hlth, Minist Educ, 13 Hangkong Rd, Wuhan 430030, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Minist Environm Protect, 13 Hangkong Rd, Wuhan 430030, Hubei, Peoples R China

[3] Huazhong Univ Sci & Technol, State Key Lab Environm Hlth Incubating, Sch Publ Hlth, Tongji Med Coll, 13 Hangkong Rd, Wuhan 430030, Hubei, Peoples R China

[4] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Hubei, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 248卷

基金：

中国国家自然科学基金;

关键词：

Graphitic carbon nitride; Tetrabromobisphenol-A; pH-dependent interaction; Electrochemical determination; Environmental samples analysis; BROMINATED FLAME RETARDANTS; METAL-FREE ELECTROCATALYSTS; HYDROGEN-PEROXIDE; GRAPHENE; TBBPA; NANOSHEETS; REDUCTION; PERFORMANCE; PHASE; WATER;

D O I：

10.1016/j.snb.2017.04.002

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Graphitic carbon nitride (g-C3N4), a green and cost-efficient semiconductor, is considered to be inconveniently applied in the field of electrochemistry due to its bad electrochemical activity. In this study, g-C3N4 was found to enhance the electrochemical response of tetrabromobisphenol-A (TBBPA) at glassy carbon electrode and then employed as a sensing material for further sensitive determination. The active mechanism, the discrepant electrochemical properties of the obtained g-C3N4 products and the pH dependent interaction between g-C3N4 and TBBPA during the analysis process were investigated. For the investigation, g-C3N4 was synthesized at different temperatures and characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), Raman spectroscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Moreover, the electrochemical properties of g-C3N4 after electrode modification were evaluated by electrochemical impedance spectroscopy (EIS) and chrono-coulometry. Finally, TBBPA was quantified with the modified electrode in the range of 0.02 mu M-1 mu M with a detection limit of 5 nM. The presented properties of the modified electrode also enable its application in environmental samples detection. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：673 / 681

页数：9

共 60 条

[1] An overview of commercially used brominated flame retardants, their applications, their use patterns in different countries/regions and possible modes of release [J].