• 文献标题:   Enhanced Raman Effect of Solvothermal Synthesized Reduced Graphene Oxide/Titanium Dioxide Nanocomposites
  • 文献类型:   Article
  • 作  者:   AYALAFONSECA LA, AMIEVA EJC, RODRIGUEZGONZALEZ C, ANGELESCHAVEZ C, DE LA ROSA E, CASTANO VM, SALAS P
  • 作者关键词:   methanolwater solvothermal synthesi, nanocomposite, raman enhancement, reduced graphene oxide, titanium dioxide
  • 出版物名称:   CHEMISTRYSELECT
  • ISSN:   2365-6549
  • 通讯作者地址:   Univ Nacl Autonoma Mexico
  • 被引频次:   0
  • DOI:   10.1002/slct.202000335
  • 出版年:   2020

▎ 摘  要

Highly functionalized reduced graphene oxide (rGO) sheets, decorated with homogenously distributed titanium dioxide (TiO2) nanoparticles, were obtained by optimizing the conditions of a facile solvothermal synthesis route with methanol-water as solvent. These materials show a Raman enhancement apparently at the rGO/TiO2 interface. Conventional and High Resolution Transmission Electron microscopy (HRTEM) and X-ray diffraction (XRD) show single crystal TiO2 NPs below 6 nm with an anatase crystalline phase. Fourier Transform Infrared (FT-IR) spectroscopy shows a significant chemical reduction of the graphene oxide. Thermal analysis also confirms the efficient functionalization and in-situ reduction of the graphene oxide sheets. The results show that under mild conditions, the solvent mixture achieves a higher functionalization than pure solvents.