Facile hydrothermal preparation of titanium dioxide decorated reduced graphene oxide nanocomposite
Open Access
- 1 July 2012
- journal article
- Published by Taylor & Francis Ltd in International Journal of Nanomedicine
- Vol. 7, 3379-3387
- https://doi.org/10.2147/ijn.s28189
Abstract
A simple single-stage approach, based on the hydrothermal technique, has been introduced to synthesize reduced graphene oxide/titanium dioxide nanocomposites. The titanium dioxide nanoparticles are formed at the same time as the graphene oxide is reduced to graphene. The triethanolamine used in the process has two roles. It acts as a reducing agent for the graphene oxide as well as a capping agent, allowing the formation of titanium dioxide nanoparticles with a narrow size distribution (~20 nm). Transmission electron micrographs show that the nanoparticles are uniformly distributed on the reduced graphene oxide nanosheet. Thermogravimetric analysis shows the nanocomposites have an enhanced thermal stability over the original components. The potential applications for this technology were demonstrated by the use of a reduced graphene oxide/titanium dioxide nanocomposite-modified glassy carbon electrode, which enhanced the electrochemical performance compared to a conventional glassy carbon electrode when interacting with mercury(II) ions in potassium chloride electrolyte.Keywords
This publication has 31 references indexed in Scilit:
- Graphene goes undercoverNature Chemistry, 2009
- Superior Thermal Conductivity of Single-Layer GrapheneNano Letters, 2008
- Detection of individual gas molecules adsorbed on grapheneNature Materials, 2007
- Graphene Thickness Determination Using Reflection and Contrast SpectroscopyNano Letters, 2007
- Atomic Structure of Graphene on SiO2Nano Letters, 2007
- The structure of suspended graphene sheetsNature, 2007
- Effect of Disorder on Transport in GraphenePhysical Review Letters, 2006
- Two-dimensional gas of massless Dirac fermions in grapheneNature, 2005
- Experimental observation of the quantum Hall effect and Berry's phase in grapheneNature, 2005
- Electric Field Effect in Atomically Thin Carbon FilmsScience, 2004