title: Facile hydrothermal preparation of titanium dioxide decorated reduced graphene oxide nanocomposite.
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.
authors: Low Dimensional Materials Research Center, Physics Department, University of Malaya, Kuala Lumpur.
authors: Betty Yea Sze
authors: BY
authors: Chang
authors: Nay Ming
authors: NM
authors: Huang
authors: Mohd Nor
authors: MN
authors: An'amt
authors: Abdul Rahman
authors: AR
authors: Marlinda
authors: Yusoff
authors: Y
authors: Norazriena
authors: Muhamad Rasat
authors: MR
authors: Muhamad
authors: Ian
authors: I
authors: Harrison
authors: Hong Ngee
authors: HN
authors: Lim
authors: Chin Hua
authors: CH
authors: Chia
mesh_terms: D055664:Electrochemical Techniques; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D008628:Mercury / Q000032:analysis; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011189:Potassium Chloride / Q000737:chemistry; D013696:Temperature; D013818:Thermogravimetry; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C009495:titanium dioxide; D011189:Potassium Chloride; D006108:Graphite; D014025:Titanium; D008628:Mercury