Supercritical fluid mediated synthesis of highly exfoliated graphene/ZnO composite for photocatalytic hydrogen production

作者：Haldorai Yuvaraj; Shim Jae Jin^*

来源：Materials Letters, 2014, 133: 24-27.

DOI：10.1016/j.matlet.2014.06.150

• Grapheme
• ZnO
• Nanocomposite
• Supercritical fluid
• Hydrogen production

Reduced graphene oxide (RGO)/zinc oxide (ZnO) composite was synthesized via a simple and environmentally-friendly route using supercritical carbon dioxide. The structure and morphology of the resulting composite was characterized by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The nanocomposite exhibited enhanced photocatalytic activity for hydrogen (H-2) production from water photo-splitting because the ZnO nanoparticles on the RGO sheets can capture light energy and facilitate excited electron transfer for photocatalytic H-2 production via RGO, which acts as an efficient electron mediator.

• 出版日期2014-10-15