Aminoalcohol-functionalization of Alkali Palm Oil Fiber and Application as Electrochemical Sensor for 2-nitrophenol Determination

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 mu M (S/N=3). Finally, the sensor has been selective and successfully applied to the 2-NP detection in real water samples.

Automated summary

In this study, a simple and fast electrochemical method based on aminoalcohol-functionalized palm oil fiber modified carbon paste electrode was developed for the electroanalysis of 2-nitrophenol. The modified electrode showed a more sensitive response towards the reduction of 2-nitrophenol and allowed for the detection of low concentrations. The sensor was selective and successfully applied to the detection of 2-nitrophenol in real water samples.