Graphene oxide/cellulose nanofibril composite: A high-performance catalyst for the fabrication of an electrochemical sensor for quantification of p-nitrophenol, a hazardous water pollutant

Xuan Wang; Ceren Karaman; Yaoli Zhang; Changlei Xia

doi:10.1016/j.chemosphere.2023.138813

Graphene oxide/cellulose nanofibril composite: A high-performance catalyst for the fabrication of an electrochemical sensor for quantification of p-nitrophenol, a hazardous water pollutant

Chemosphere. 2023 Aug:331:138813. doi: 10.1016/j.chemosphere.2023.138813. Epub 2023 Apr 29.

Authors

Xuan Wang¹, Ceren Karaman², Yaoli Zhang¹, Changlei Xia³

Affiliations

¹ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China.
² Department of Electricity and Energy, Vocational School of Technical Sciences, Akdeniz University, Antalya, 07070, Turkey; School of Engineering, Lebanese American University, Byblos, Lebanon. Electronic address: cerenkaraman@akdeniz.edu.tr.
³ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China. Electronic address: changlei.xia@njfu.edu.cn.

PMID: 37127202
DOI: 10.1016/j.chemosphere.2023.138813

Abstract

The detection and quantification of p-Nitrophenol in environmental samples are important for understanding the extent and impact of environmental pollution, protecting human health, ensuring regulatory compliance, and guiding remediation efforts. The main objective of this work was to investigate the electrochemical performance of a graphene oxide/cellulose nanofibril composite (GO/CNF) modified carbon paste electrode (GO/CNF/CPE) for the sensitive and reliable detection of p-nitrophenol in water samples. The transmission electron microscopy (TEM) technique was employed to enlighten the structure of nanocomposites. The electrochemical behavior of the fabricated electrochemical sensor was characterized via differential pulse voltammetry (DPV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS). Under optimized analytical conditions, the peak current of the analyte showed a wide linear relationship with its concentration in a range of 3.0 nM-210 μM with a low amount of the limit of detection (LOD) value of 0.8 nM determined by the DPV method. The proposed electrochemical sensor demonstrated excellent sensitivity, selectivity, and accuracy metrics in real sample analysis of p-nitrophenol.

Keywords: Catalyst; Graphene oxide/cellulose nanofibril; Waste water; p-Nitrophenol.

MeSH terms

Cellulose
Electrochemical Techniques / methods
Electrodes
Graphite* / chemistry
Humans
Nitrophenols / analysis
Water Pollutants* / analysis

Substances

4-nitrophenol
graphene oxide
Cellulose
Water Pollutants
Nitrophenols
Graphite