Microwave-Assisted Synthesis of Graphene Oxide Nanoribbons Using Green Chemistry for the Electrochemical Detection
Huei-Ping Liou1*, Chia-Liang Sun1
1Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan
* presenting author:Huei-Ping Liou, email:cy6709@gmail.com
The process to create graphene nanoribbons (GNRs) from carbon nanotubes (CNTs) can be divided into several categories, including wet chemical methods, physicochemical methods, intercalation exfoliation, catalytic approaches, electrical methods, and so on. In many of the published examples, microwave heating has been shown to dramatically reduce reaction time, increase product yields, and enhance product purities by reducing unwanted side reactions compared with conventional heating methods. [1, 2] Following the trend of eco-conscious, using various methods to reduce the use of chemicals which would pollute the environment in any process is of great interests to scientists. In this study, we demonstrated that the addition of KNO3 besides KMnO4 can reduce the use of H2SO4 volume in our microwave-assisted process. [3, 4] Transmission electron microscopy (TEM) were used to examine the morphology and structure of our products. i.e. graphene oxide nanoribbons (GONRs), using much less acid than that in the original recipe. Furthermore, GONRs were adopted to modify the glassy carbon (GC) electrodes for the electrochemical detection of ascorbic acid (AA), dopamine (DA) and uric acid (UA).


Keywords: graphene nanoribbon , microwave reactor, ascorbic acid, dopamine, uric acid