Ionic liquid-assisted hydrothermal synthesis of Bi2WO6–reduced graphene oxide composites with enhanced photocatalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63238-63245 ◽  
Author(s):  
Hua Lv ◽  
Yumin Liu ◽  
Jiayuan Hu ◽  
Zijin Li ◽  
Yan Lu

Due to the synergistic contributions of graphene and ionic liquid, the as-prepared RGO–Bi2WO6 samples exhibited the remarkably enhanced photocatalytic activities under visible light irradiation.

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23809-23815 ◽  
Author(s):  
Shanshan Zhu ◽  
Yuming Dong ◽  
Xiaofeng Xia ◽  
Xiang Liu ◽  
Hexing Li

Mo-doped TiO2 nanowires/reduced graphene oxide composites with improved visible-light photocatalytic activity were first synthesized, the photocatalytic mechanism was also discussed.


2017 ◽  
Vol 41 (22) ◽  
pp. 13382-13390 ◽  
Author(s):  
Xiang Liu ◽  
Yidan Shi ◽  
Yuming Dong ◽  
Hexing Li ◽  
Yongmei Xia ◽  
...  

W-Doped TiO2 nanoparticles/reduced graphene oxide composites have been synthesized for the first time. The mechanism of their high photocatalytic activity for MB has been identified and discussed.


2018 ◽  
Vol 5 (8) ◽  
pp. 180613 ◽  
Author(s):  
Haijin Liu ◽  
Peiyao Li ◽  
Haokun Bai ◽  
Cuiwei Du ◽  
Dandan Wei ◽  
...  

Anatase TiO 2 with {001} facets is much more active than that with {101} facets, which has been verified via experiments and theoretical calculations. Graphene has garnered much attention since it was initially synthesized, due to its unique properties. In this study, reduced graphene oxide (RGO)/{001} faceted TiO 2 composites were fabricated via a solvothermal method. The composites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectrophotometry, photoluminescence and Raman analysis. The results revealed that the graphene oxide was reduced during the preparation process of the {001} faceted TiO 2 , and combined with the surface of {001} TiO 2 . The photocatalytic activities of the composites were evaluated through the degradation of basic violet, under both white light ( λ > 390 nm) and visible light ( λ = 420 nm) irradiation. The results indicated that the photocatalytic activities of the {001} faceted TiO 2 were significantly improved following the incorporation of RGO, particularly under visible light irradiation. Theoretical calculations showed that the band structure of the {001} faceted TiO 2 was modified via graphene hybridization, where the separation of photoinduced electron–hole pairs was promoted; thus, the photocatalytic activity was enhanced.


RSC Advances ◽  
2015 ◽  
Vol 5 (58) ◽  
pp. 47117-47124 ◽  
Author(s):  
Zongkuan Yue ◽  
Dongmei Chu ◽  
Hui Huang ◽  
Jie Huang ◽  
Ping Yang ◽  
...  

A novel heterogeneous hybrid composed of Nb2O5 microspheres and reduced graphene oxide as photocatalyst exhibits superior photocatalytic activity and stability.


RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2479-2488 ◽  
Author(s):  
Liyuan Kuang ◽  
Wen Zhang

Carbon doped TiO2 anchored to reduced graphene oxide formed a hybrid nanocomposite (C-TiO2/rGO) that exhibited greater photocatalytic activity and stability.


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