Aminoalcohol‐functionalization of Alkali Palm Oil Fiber and Application as Electrochemical Sensor for 2‐Nitrophenol Determination
Marcel Cédric Deussi Ngaha, Victor Kougoum Tchieda, Arnaud Kamdem Tamo, Giscard Doungmo, Evangéline Njanja, Ignas Kenfack Tonlé
Abstract
Abstract A simple and fast electrochemical method based on aminoalcohol‐functionalized palm oil fiber modified carbon paste electrode (TEA‐POF/CPE) has been used for the electroanalysis of 2‐nitrophenol (2‐NP). The aminoalcohol‐functionalized palm oil fiber (TEA‐POF) was prepared by chemical grafting of triethanolamine (TEA) onto the surface of alkali material. The grafted material was characterized by some physico‐chemical techniques. The electrochemical results showed that the TEA‐POF/CPE exhibited more sensitive response towards the 2‐NP reduction and allowed to estimate a low detection limit of 1.26 μM (S/N=3). Finally, the sensor has been selective and successfully applied to the 2‐NP detection in real water samples.