Electrocatalytic reduction of 2, 6-dinitrophenol on polycongo red decorated glassy carbon electrode for sensing application

被引：6

作者：

Asiri, Abdullah M. ^{[1
,2
]}

Adeosun, Waheed A. ^{[1
,2
]}

Marwani, Hadi M. ^{[1
,2
]}

机构：

[1] King Abdulaziz Univ, Ctr Excellence Adv Mat Res CEAMR, POB 80203, Jeddah 21589, Saudi Arabia

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, POB 80203, Jeddah 21589, Saudi Arabia

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2020年 / 8卷 / 05期

关键词：

Poly-congo-red; Conducting polymer; 2; 6-Dinitrophenol; Electrochemical sensor; Electrodeposition; Water pollutant monitoring; GRAPHENE OXIDE; CONGO RED; ELECTROCHEMICAL-BEHAVIOR; ACID; DINITROPHENOLS; NANOPARTICLES; SENSOR; NITRO;

D O I：

10.1016/j.jece.2020.104378

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

2, 6-dinitrophenol (2, 6-DNP) is a toxic chemical with significant negative impact on human health and ecosystem (aquatic lives). Hence, efficient monitoring of this pollutant is key in environmental management. Therefore, this study reported in-situ deposition of polycongo red (PCR) film by electrochemical approach for detection and monitoring of 2, 6-DNP. The synthesized PCR film was characterized by field emission scanning electron microscopy, Fourier transform infrared spectroscopy (FT-IR), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. Being a conducive polymer, PCR film electrocatalyzed reduction of 2, 6-DNP to 2, 6-diaminophenol. The synthesized PCR film displayed satisfactory response towards sensing of 2, 6-DNP with limit of detection (LOD) of 0.1 mu M (S/N = 3) and linear range of 0.5 mu M to 65 mu M. Also, the responses of PCR film towards sensing of 2, 6-DNP was repeatable, reproducible, interference-free with short response time. Lastly, the proposed 2, 6-DNP sensor was satisfactorily used for detection of 2, 6-DNP in environmental real samples.

引用

页数：9

共 38 条

[21]

Kuskur CM, 2018, ANAL BIOANAL ELECTRO, V10, P658

[22] Adsorption of congo red dye from aqueous solutions by prepared activated carbon with oxygen-containing functional groups and its regeneration [J].