(Ga1-xZnx)(Ni1-xOx)-rGO composites with enhanced photocatalytic performance for visible-light driven water splitting

作者：Li, Xuedong; Zhang, Qinghong^*; Wang, Hognzhi; Li, Yaogang

来源：Applied Surface Science, 2015, 358: 57-62.

DOI：10.1016/j.apsusc.2015.08.222

• (Ga1-xZnx)(N1-xOx)
• (Ga1-xZnx)(N1-xOx)-rGO
• Photocatalyst
• Water splitting
• H-2 production

(Ga1-xZnx)(N1-xOx)-rGO (reduced graphene oxide) composites photocatalysis with different GO contents were prepared by hydrothermal method and subsequent nitridation. (Ga1-xZnx)(N1-xOx)-rGO composites were characterized via XRD, SEM, XPS, Raman spectra, and N-2 adsorption-desorption isothermals. The rGO sheets in the nanocomposite photocatalyst are decorated with (Ga1-xZnx)(N1-xOx) nanoparticles. Compared with bare (Ga1-xZnx)(N1-xOx), the (Ga1-xZnx)(N1-xOx)-rGO showed higher specific surface area and mobility of charge carriers and enhanced photocatalytic activity for visible-light driven water splitting. The photocatalyst with 30 wt.% original GO shows the best activity, that the rate of H2 production is almost 4.5 times higher than that of bare (Ga1-xZnx)(N1-xOx)-rGO particles. Herein, the results provide new insights into (Ga1-xZnx)(N1-xOx)-rGO composite as high performance photocatalyst and their potential application in visible-light driven water splitting H-2 production.

• 出版日期2015-12-15
• 单位东华大学