Co-Sol–Gel Preparation of Novel TiO2-Al2O3 Nanocomposite with Enhanced Photocatalytic Activity

2012 ◽  
Vol 16 (1) ◽  
pp. 332-335 ◽  
Author(s):  
Wenjie Zhang ◽  
Ruyuan Li ◽  
Bo Yang ◽  
Jiawei Bai
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Gel Preparation

Sol–gel preparation of TiO2–ZrO2 thin films supported on glass rings: Influence of phase composition on photocatalytic activity

2006 ◽  
Vol 502 (1-2) ◽  
pp. 125-131 ◽  
Author(s):  
María D. Hernández-Alonso ◽  
Isabel Tejedor-Tejedor ◽  
Juan M. Coronado ◽  
Javier Soria ◽  
Marc A. Anderson
Keyword(s):  
Thin Films ◽  
Photocatalytic Activity ◽  
Phase Composition ◽  
Sol Gel ◽  
Gel Preparation

Co-Sol-Gel Preparation of SiO2-Doped TiO2 on Adsorption and Photocatalytic Degradation of Methyl Orange

2011 ◽  
Vol 48-49 ◽  
pp. 345-348
Author(s):  
Li Li Yang ◽  
Yan Liang Qu ◽  
Wen Jie Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Adsorption Equilibrium ◽  
Irradiation Time ◽  
Sol Gel ◽  
Methyl Orange Degradation ◽  
Doped Tio2 ◽  
Degradation Rates ◽  
Gel Preparation ◽  
Degradation Of Methyl Orange

A co-sol-gel method was used to prepare SiO2-doped TiO2. The amount of ethyl silicate added into the precursor, calcination temperature and time, adsorption equilibrium, and photocatalytic activity of the material were investigated as the factor of degradation efficiency. With the optimum composition of the precursor, the prepared gel calcinated at 500 oC for 3 h showed the highest photocatalytic activity. After 30 min stirring to reach adsorption equilibrium, adsorption contributed less than 2% to the total decoloration of methyl orange on the SiO2-doped TiO2 material. Photocatalytic methyl orange degradation continued with increasing irradiation time. Methyl orange degradation rates after 30 min and 100 min were 31.1% and 96.9%, respectively.

Sol-Gel Preparation, Characterization, and Photocatalytic Activity of Macroporous TiO2 Thin Films

2010 ◽  
Vol 94 (4) ◽  
pp. 1191-1197 ◽  
Author(s):  
Jianxi Yao ◽  
Yiming Bai ◽  
Noufu Chen ◽  
Masahide Takahashi ◽  
Toshinobu Yoko
Keyword(s):  
Thin Films ◽  
Photocatalytic Activity ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Gel Preparation

Role of Calcination in Sol-Gel Preparation of 3%In-0.1%Gd-TiO2 and Photocatalytic Activity

2017 ◽  
Vol 13 (2) ◽  
pp. 208-214 ◽  
Author(s):  
Hong Li ◽  
Xiaobei Pei ◽  
Xijuan Chen ◽  
Wenjie Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Gel Preparation

Synthesis and Characterization of TiO2 Nanoparticles via Alternative Sol-Gel Preparation Routes

2015 ◽  
Vol 1087 ◽  
pp. 191-196 ◽  
Author(s):  
Emy Marlina Samsudin ◽  
Chan Wai Soo ◽  
Sharifah Bee Abd Hamid ◽  
Wan Jefrey Basiron ◽  
Chin Wei Lai ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Band Gap ◽  
Dye Degradation ◽  
Sol Gel ◽  
Molar Ratio ◽  
Reactive Black 5 ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystallite Structure ◽  
Gel Preparation

In this study, TiO2 nanoparticles were successfully synthesized using sol-gel technique by employing different mixing routes. The nanoparticles were characterized for field emission scanning electron microscopy, energy dispersive X-Ray spectroscopy, Fourier transformed infrared, Raman spectroscopy, x-ray diffraction and ultraviolet visible spectroscopy. It is apparent that different mixing sol-gel route significantly influenced the morphology, crystallite structure, particle and crystal size and band gap of TiO2, under similar molar ratio. The differences in physicochemical and optical properties of synthesized TiO2 greatly influenced its photocatalytic activity in reactive black 5 dye degradation. In overall, mixed crystal structures of anatase and rutile showed better photocatalytic activity for the degradation of reactive black 5 dye due to a narrower band gap, as opposed to single phase TiO2.

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