Synthesis of Novel g-C3N4/Bi2WO6 Composite with High Visible Light Photocatalytic Activity

2012 ◽  
Vol 557-559 ◽  
pp. 957-960 ◽  
Author(s):  
Lei Ge ◽  
Chang Cun Han ◽  
Jing Liu
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Doping Amount ◽  
Visible Light Photocatalytic Activity ◽  
Composite Photocatalysts ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic ◽  
Composite Samples ◽  
Efficient Transfer

The synthesis of g-C3N4/Bi2WO6composite materials with varying the g-C3N4content was reported in this investigation. The composite samples were characterized by various techniques. The photocatalytic activity of the g-C3N4/Bi2WO6products has been investigated by the degradation of methyl orange dye under visible light irradiation. The UV-vis absorption spectra show that the absorption edge of the composite sample shifts to longer wavelengths with increasing the doping amount of g-C3N4. It is revealed that the g-C3N4/Bi2WO6composite photocatalysts exhibit remarkably enhanced photocatalytic performance for the degradation of methyl orange. The high visible light photocatalytic activity of g-C3N4/Bi2WO6can be attributed to the efficient transfer and separation of charge carriers in the interface between g-C3N4and Bi2WO6particles.

Coupling with a narrow-band-gap semiconductor for the enhancement of visible-light photocatalytic activity: preparation of Bi2OxS3−x/Nb6O17 and application to the degradation of methyl orange

2016 ◽  
Vol 45 (35) ◽  
pp. 13944-13950 ◽  
Author(s):  
Gang Yan ◽  
Hongfei Shi ◽  
Huaqiao Tan ◽  
Wanbin Zhu ◽  
Yonghui Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Performance ◽  
Narrow Band ◽  
Visible Light Photocatalytic Activity ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

A new 2D sheet composite Bi2OxS3−x/Nb6O17 has been prepared, which shows good visible light photocatalytic performance for the degradation of methyl orange.

Dramatic visible light photocatalytic degradation due to the synergetic effects of TiO2 and PDA nanospheres

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64446-64449 ◽  
Author(s):  
Xiaosong Zhou ◽  
Bei Jin ◽  
Jin Luo ◽  
Xuyao Xu ◽  
Lingling Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Photocatalytic Activity ◽  
Synergetic Effects ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

Dramatic visible light photocatalytic activity was obtained for the degradation of methyl orange using TiO2 photocatalysts modified with polydopamine (PDA) nanospheres.

Facile synthesis of AC@TiO2-S with improved visible light photocatalytic activity and recyclability through a controllable sol–gel approach

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56808-56814 ◽  
Author(s):  
Zhiying Duan ◽  
Zhichao Wang ◽  
Chufeng Sun ◽  
Lianbiao Zhao ◽  
Yanbin Wang
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Light Irradiation ◽  
Facile Synthesis ◽  
Visible Light Photocatalytic Activity ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

AC@TiO2-S prepared by controlled sol–gel approach exhibits improved photocatalytic activity over AC@TiO2-G prepared by sol–gel approach for the degradation of methyl orange under visible light irradiation and has excellent recyclability.

Visible-Light Photocatalytic Property of Titanate Nanotubes Sensitized by Several Porphyrins

2011 ◽  
Vol 239-242 ◽  
pp. 2403-2406
Author(s):  
Xiang Qing Li ◽  
Li Fang Liu ◽  
Shi Zhao Kang ◽  
Jin Mu ◽  
Guo Dong Li
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Fluorescence Spectra ◽  
Photocatalytic Property ◽  
Titanate Nanotubes ◽  
Visible Light Absorption ◽  
Visible Light Photocatalytic Activity ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

The visible-light photocatalytic activity of titanate nanotubes (TiNTs) sensitized by 5,10,15,20-tetraphenylporphyrin (TPP), 5,10,15,20-tetraphenylporphyrin manganese (MnTPP), 5,10,15,20-tetraphenylporphyrin nickel (NiTPP) and 5,10,15,20-tetraphenylporphyrin zinc (ZnTPP), respectively, was investigated by the photocatalytic degradation of methyl orange (MO) as a probe reaction. The results showed that the central ions of porphyrins had an important influence on the photocatalytic activity of the samples. The activity was in the order of TiNTs-ZnTPP > TiNTs-TPP > TiNTs-NiTPP > TiNTs-MnTPP. Combined the result of absorption spectra with that of fluorescence spectra, it was demonstrated that various visible-light absorption and photoelectron transfer caused by the central ions of porphyrins were the decisive factor for the visible-light photocatalytic activity of the sensitized TiNTs.

Preparation of Ag/AgCl/TiO2-XCX Plasmonic Photo-Catalyst with Enhanced Visible-Light Photocatalytic Activity

2011 ◽  
Vol 356-360 ◽  
pp. 506-509
Author(s):  
Long Hui Nie ◽  
Bin Hu ◽  
Jiu Xin Jiang
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Synthesis Process ◽  
Photo Catalyst ◽  
Visible Light Photocatalytic Activity ◽  
Plasmonic Photocatalyst ◽  
Visible Light Driven ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

A new visible-light-driven plasmonic photocatalyst Ag/AgCl/TiO2-XCX was prepared by a two-step synthesis process. The bandgap of the synthesized sample was 2.87 eV. In the degradation of methyl orange (MO) solution under the visible light (l>420 nm), the Ag/AgCl/TiO2-X CX shows higher photocatalytic activity than TiO2-X C X . The apparent ratio constant (kapp) value of Ag/AgCl/TiO2-XCX was about 9.7 times that TiO2-XCX.

Effect of Co-Doped La3+/Halogen on Visible Light Photocatalytic Activity of TiO2

2011 ◽  
Vol 239-242 ◽  
pp. 1923-1928
Author(s):  
Qian Lin Chen ◽  
Yuan Wang ◽  
Chun Yan Zhong ◽  
Yu Guo
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Surface Area ◽  
Visible Light Photocatalytic Activity ◽  
Co Doping ◽  
Hydrolysis Method ◽  
Degradation Ratio ◽  
Co Doped ◽  
Visible Light Photocatalytic

La3+/halogen (F-, Cl-and Br-) co-doped TiO2was synthesized by alkoxide hydrolysis method. The prepared La3+/halogen TiO2photocatalysts with anatase phases and rutile phases were characterized with XRD, EDS, TEM and surface area analytic technology. Methyl orange was used as model pollutants to evaluate its visible light photocatalytic activity. The results showed that the co-doping of La3+and halogen ions improved the surface area of TiO2. Compared with 450°C and 650°C, La3+/Cl-and La3+/Br-co-doped TiO2calcined at 550°C exhibited much higher photocatalytic activity. The optimal doping ratio of La3+/F-, La3+/Cl-and La3+/Br-was 0.4, 0.6, and 0.5 ((wt%)/(wt%)), respectively. Moreover, the degradation ratio of methyl orange on La3+/halogen co-doped TiO2with the optimal ratio were all higher than the maximum degradation ratio on La3+, F-, Cl-and Br-doped TiO2prepared by the same method.

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