| 초록 |
Diclofenac (DCF) is a major emerging water pollutants, according to the EU and US-EPA. It can potentially cause gastrointestinal problems and liver malfunction. What makes it particularly dangerous is its wide use in the human population which breeds acute abuse and water pollution. Hence, the development of robust and ultra-sensitive analytical tools is necessary to monitor DCF levels in waste and drinking water. Herein, we have synthesized different heterojunctions of manganese oxide (MnOx) and iron oxide (FeOx) within 1D carbon nanofiber (CNF) and evaluated their catalytic ability towards DCF electrooxidation and detection. The physicochemical properties of MnOx/FeOx/CNF are characterized using SEM, TEM, XRD, XPS, TGA, and BET analysis. Our results show that interfacial electron structure modulation promotes efficient electron transfer kinetics which coincidentally is the rate limiting step for effective DCF detection and not DCF adsorption capacity nor electroactive surface area. |
