Facile and Ultrasensitive Determination of 4-Nitrophenol Based on Acetylene Black Paste and Graphene Hybrid Electrode

Nanomaterials

Dongchu Chen¹  Peihong Deng²  Yiyong Wu³  Quanguo He³  Yaling Tian³  Guangli Li³  Jun Liu³ 

[1] Key Laboratory of functional Organometallic Materials of Hunan Provincial Universities;Key Laboratory of Functional Metal-Organic Compounds of Hunan Province;School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China;

关键词: 4-Nitrophenol;    nanomolar detection;    water resources protection;    graphene;    acetylene black;    voltammetric sensor;   

DOI  :  10.3390/nano9030429

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown