Role of the crystallite phase of TiO2 in graphene/TiO2 photocatalysis

被引：0
作者：
HongYu Xia
GuangQiang He
YuLin Min
Tao Liu
机构：
[1] Anqing Normal University,College of Chemistry and Chemical Engineering
[2] Shanghai University of Electric Power,College of Environmental and Chemical Engineering
来源：
Journal of Materials Science: Materials in Electronics | 2015年 / 26卷
关键词：
TiO2; Graphene Oxide; Rutile; Photocatalytic Activity; Benzoic Acid;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using chemisorption followed by annealing at different temperatures, TiO2 with different phases (anatase, rutile and mixed anatase/rutile) have been successfully assembled onto graphene sheet. The corresponding UV and visible induced photoactivities were evaluated using sensitized methyl orange and non-sensitized benzoic acid degradation as a probe reaction. The photocatalytic activities of TiO2 could be enhanced after assembled with graphene under UV and visible light irradiation both. However, Due to different charge transfer mechanism in UV and visible light irradiation system, the different crystallite phases of TiO2 acted different roles, hence displayed hierarchical enhancement phenomenon.
引用
收藏
页码：3357 / 3363
页数：6
相关论文
共 168 条
  • [1] Li N(2011)Battery performance and photocatalytic activity of mesoporous anatase TiO Adv. Funct. Mater. 21 1717-1722
  • [2] Liu G(2009) nanospheres/graphene composites by template-free self-assembly ACS Nano 3 907-914
  • [3] Zhen C(2010)Self-assembled TiO Nano Res. 3 701-705
  • [4] Li F(2011)–graphene hybrid nanostructures for enhanced Li-ion insertion New J. Chem. 35 353-359
  • [5] Zhang LL(2010)TiO J. Mater. Chem. 20 2801-2806
  • [6] Cheng HM(2011) nanocrystals grown on graphene as advanced photocatalytic hybrid materials J. Phys. Chem. C 115 10694-10701
  • [7] Wang DH(2010)Preparation of graphene–TiO Appl. Phys. Lett. 96 083113-894
  • [8] Choi DW(2010) composites with enhanced photocatalytic activity ACS Nano 4 887-4690
  • [9] Li J(2011)Graphene/TiO Electrochim. Acta 56 4685-286
  • [10] Yang ZG(2006) nanocomposites: synthesis, characterization and application in hydrogen evolution from water photocatalytic splitting Nature 442 282-1171
12345678910