Facile and Ultrasensitive Determination of 4-Nitrophenol Based on Acetylene Black Paste and Graphene Hybrid Electrode
Quanguo He,
Yaling Tian,
Yiyong Wu,
Jun Liu,
Guangli Li,
Peihong Deng,
Dongchu Chen
Affiliations
Quanguo He
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Yaling Tian
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Yiyong Wu
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Jun Liu
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Guangli Li
School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Peihong Deng
Key Laboratory of Functional Metal-Organic Compounds of Hunan Province; Key Laboratory of functional Organometallic Materials of Hunan Provincial Universities; Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China
Dongchu Chen
School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China
4-nitrophenol (4-NP) is a hazardous waste and a priority toxic pollutant identified by US Environmental Protection Agency (EPA). Hence, in this paper, a voltammetric sensor was proposed for the direct and sensitive detection of 4-nitrophenol (4-NP) at nanomolar level in complex matrices by using graphene and acetylene black paste hybridized electrode (GR/ABPE). Under optimal conditions, the calibration curve demonstrates a linear relationship for 4-NP in the range from 20 nM to 8.0 μM and 8.0 μM to 0.1 mM separately with the detection limit of 8.0 nM. In addition to it, the performance of the GR/ABPE in practical applications was evaluated by detecting 4-NP in various water samples, and satisfactory recoveries were realized. Therefore, GR/ABPE may have a great potential application for facile and sensitive detection of 4-NP in complex matrices at nanomolar level.
