Novel synthesis of quaternary nanocomposites based on chemical vapor grown graphene for photocatalytic hydrogen evolution

作者：Ye Shu; Oh Won Chun^*

来源：Fullerenes, Nanotubes, and Carbon Nanostructures, 2016, 24(8): 487-493.

DOI：10.1080/1536383X.2016.1188283

• graphene
• Pd
• Pt
• XRD
• TEM
• Raman
• H-2 evolution

Pd-Pt/graphene-TiO2 nanocomposites were synthesized via a facile ultrasonic and hydrothermal method. For the functionalization of graphene, large area graphene obtained by chemical vapor deposition method was oxidized by 3-chloroperoxybenzoic acid. The functionalized graphene oxide was decorated with TiO2. And then, Pt and Pd nanoparticles were dispersed on graphene surface, simultaneously. The characterizations of as-prepared samples were studied by X-ray diffraction (XRD), transmission electron microscope (TEM), Raman, specific surface area (BET) and with energy dispersive X-ray (EDX). The photocatalytic activity of the Pd-Pt/graphene-TiO2 nanocomposite catalyst was evaluated by H-2 evolution under UV light. Pd-Pt/graphene-TiO2 (Pd-Pt/G-TiO2) exhibited higher photocatalytic activities than control experimental group samples (TiO2, G-TiO2, Pd/G-TiO2 and Pt/G-TiO2) under UV light irradiation.

• 出版日期2016