A F-ion assisted preparation route to improve the photodegradation performance of a TiO2@rGO system-how to efficiently utilize the photogenerated electrons in the target organic pollutants
Guo, LJ (Guo, Linjuan); Yang, Z (Yang, Zheng); Zu, BY (Zu, Baiyi); Lu, B (Lu, Bin); Dou, XC (Dou, Xincun)
2016
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:1Pages:358-365
Abstract

A comparison of the work function of reduced graphene oxide (rGO) and the conduction band position of TiO2 reveals that the density of TiO2 particles grown on rGO could affect the photodegradation efficiency of a TiO2@rGO heterojunction. Herein, with the introduction of F-ions into the preparation route, F-doped shaped TiO2 nanocrystals are densely and uniformly decorated on rGO sheets via the ice bath hydrolyzation method. Thus, more dye molecules are adsorbed on the surface of TiO2 and the photogenerated electrons in the excited dye molecules could be efficiently utilized to improve the overall photodegradation efficiency. The as-prepared F-doped TiO2@rGO heterojunction showed extremely high photocatalytic efficiency under UV-vis light irradiation compared with that of the commercial P25 and the mixture of F-TiO2 and rGO. It is proved that the ice bath hydrolyzation preparation route is crucial to improve the photodegradation efficiency of the final product since the pure TiO2@rGO heterojunction is also much more efficient than the mixture of F-TiO2 and rGO. The present work provides new insights into efficiently utilizing the photogenerated electrons in the target organic pollutants.

DOI10.1039/c5ra21948e
Indexed BySCI
WOS IDWOS:000367250900044
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4873
Collection中国科学院特殊环境功能材料与器件重点试验室
环境科学与技术研究室
Corresponding AuthorDou, XC (Dou, Xincun)
Affiliation1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Guo, LJ ,Yang, Z ,Zu, BY ,et al. A F-ion assisted preparation route to improve the photodegradation performance of a TiO2@rGO system-how to efficiently utilize the photogenerated electrons in the target organic pollutants[J]. RSC ADVANCES,2016,6(1):358-365.
APA Guo, LJ ,Yang, Z ,Zu, BY ,Lu, B ,&Dou, XC .(2016).A F-ion assisted preparation route to improve the photodegradation performance of a TiO2@rGO system-how to efficiently utilize the photogenerated electrons in the target organic pollutants.RSC ADVANCES,6(1),358-365.
MLA Guo, LJ ,et al."A F-ion assisted preparation route to improve the photodegradation performance of a TiO2@rGO system-how to efficiently utilize the photogenerated electrons in the target organic pollutants".RSC ADVANCES 6.1(2016):358-365.
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