Synthesis and Photocatalytic Property of N-doped BiVO$lt;inf$gt;4$lt;/inf$gt; via Sol-Gel Method Using Corn Stem as Template

2014 ◽  
Vol 29 (8) ◽  
pp. 807
Author(s):  
WANG Min ◽  
NIU Chao ◽  
DONG Zhan-Jun ◽  
CHE Yin-Sheng ◽  
DONG Duo ◽  
...  
Keyword(s):  
Sol Gel ◽  
Photocatalytic Property ◽  
Gel Method ◽  
Sol Gel Method

Photocatalytic property of Cu2+-doped Bi2O3 films under visible light prepared by the sol–gel method

Vacuum ◽  
2014 ◽  
Vol 107 ◽  
pp. 204-207 ◽  
Author(s):  
Wei Qin ◽  
Jing Qi ◽  
Xiaohong Wu
Keyword(s):  
Visible Light ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Gel Method ◽  
Sol Gel Method

Effect of Transition Metal Ion Doping on the Photocatalytic Activities of TiO2 Synthesized by Sol-Gel Method

2012 ◽  
Vol 562-564 ◽  
pp. 260-264
Author(s):  
Min Zhong ◽  
Jing Jing Yu ◽  
Zhi Hao Wei ◽  
Ping Zhan Si
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Absorption Edge ◽  
Metal Ion ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Transition Metal Ions ◽  
Photocatalytic Properties ◽  
Gel Method ◽  
Sol Gel Method

Pure TiO2 , Ti 0.75 Fe0.25 O2, Ti0.75 Ni0.25 O2, Ti0.75 Co0.25 O2 nanocrystals were prepared by low temperature sol-gel method. The samples were characterized by using transmission electron microscope, X-ray diffractometer and ultraviolet-visible spectrophotometer to study the effect of transition metal ions on the photocatalytic properties of TiO2 nanocrystals. The results show that the pure TiO2 and Ti0.75 Fe0.25 O2, Ti0.75 Ni0.25 O2, Ti0.75 Co0.25 O2 nanocrystals were granular and the size of which is 3.5, 2.9, 3.6, 3.9 nm, respectively. The titania anatase phases appear in the pure TiO2 , the Ti0.75 Fe0.25 O2, Ti0.75 Ni0.25 O2, Ti0.75 Co0.25 O2. The absorption edge of Ti0.75 Fe0.25 O2occur red shift comparing with that of pure TiO2 and the absorption edge of Ti0.75 Fe0.25 O2and Ti0.75 Fe0.25 O2occur blue shift comparing with that of pure TiO2. The photocatalytic properties of pure TiO2, Ti0.75 Fe0.25 O2, Ti0.75 Fe0.25 O2, Ti0.75 Fe0.25 O2nanocrystals synthesized at low temperature by sol-gel method were investigated by degrading the methyl orange solution under ultraviolet irradiation. The degradation rate of Ti0.75 Fe0.25 O2is the highest (60%) and that of Ti0.75Co0.25O2 (10%) is the lowest among these catalysts after degradation for 120min.The result shows that the photocatalytic property ofTi0.75 Fe0.25 O2nanocrystals synthesized at low temperature is obviously better than that of pure TiO2 and Ti0.75 Fe0.25 O2, Ti0.75 Fe0.25 O2.

Synthesis and Photocatalytic Property of FeVO4 Photocatalyst by Sol-Gel Method

2011 ◽  
Vol 328-330 ◽  
pp. 1507-1511 ◽  
Author(s):  
Min Wang ◽  
Li Fang Zhang ◽  
Hai Yan Luan
Keyword(s):  
Photocatalytic Activity ◽  
Citric Acid ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Molar Ratio ◽  
Halogen Lamp ◽  
Experimental Conditions ◽  
Gel Method ◽  
Sol Gel Method ◽  
Photodegradation Rate

FeVO4 photocatalysts were synthesized by complexing Sol-Gel method using citric acid as chelate and characterized with X-ray diffraction (XRD), scanning electron microsoope(SEM, specific surface area (BET). The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange (MO) solution under visible light. It was found that the sample prepared with the molar ratio of citric acid to metal inons be 2:1, pH=7 and calcinated under 750°C for 4 hours was pure triclinic FeVO4 phase. In the experimental conditions used, the FeVO4 calcined at 750°C had highest photocatalytic activity with the photodegradation rate was about 85% or so in 150min under 250W halogen lamp.

scholarly journals Synthesis of CNT/In2O3 Nanocomposite by Sol-Gel Method and Its Photocatalytic Property

2013 ◽  
Vol 25 (10) ◽  
pp. 5798-5800 ◽  
Author(s):  
Xuejing Wang ◽  
Xinsheng Wang ◽  
Linfeng Hu
Keyword(s):  
Sol Gel ◽  
Photocatalytic Property ◽  
Gel Method ◽  
Sol Gel Method

Photocatalytic Property of Eu/BiVO4 Photocatalyst by Citric Acid Sol-Gel Method

2013 ◽  
Vol 28 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Min WANG ◽  
Qiong LIU ◽  
Ya-Jie SUN ◽  
Yin-Sheng CHE ◽  
Chen-Zhi JIANG
Keyword(s):  
Citric Acid ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Gel Method ◽  
Sol Gel Method

Preparation of TiO2-based powders with high photocatalytic activities

1997 ◽  
Vol 12 (3) ◽  
pp. 607-609 ◽  
Author(s):  
Tomoko Kasuga ◽  
Masayoshi Hiramatsu ◽  
Masayoshi Hirano ◽  
Akihiko Hoson ◽  
Kyoko Oyamada
Keyword(s):  
Specific Surface ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Reflection Spectra ◽  
Gel Method ◽  
Sol Gel Method ◽  
Surface Areas ◽  
Infrared Reflection ◽  
Photocatalytic Activities ◽  
Specific Surface Areas

TiO2-based powders doped with a small amount of SiO2 were prepared by a sol-gel method and subsequently were heated to precipitate fine anatase crystals. Although the obtained powders have large specific surface areas (≈200 m2 · g−1), they showed poorer activity in a photocatalytic property than the undoped TiO2 powders which have the area of 50 m2 · g−1. The SiO2-doped TiO2 powders were treated chemically with aqueous NaOH. Infrared reflection spectra showed that the treatment reduced the amount of SiO2 in the powders. The photocatalytic property of the powders was extremely improved by the treatment, and the powders showed higher activity than the undoped TiO2 powders.

Fe2O3 - TiO2 THIN FILMS PREPARED BY SOL-GEL METHOD

2011 ◽  
Vol 10 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Ramona-Crina Suciu ◽  
Marcela Corina Rosu ◽  
Teofil Danut Silipas ◽  
Emil Indrea ◽  
Violeta Popescu ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Gel Method ◽  
Sol Gel Method
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