Sol-gel Preparation of TiO2-Al2O3 Composite Materials to Promote Photocatalytic Activity

2015 ◽  
Vol 5 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Wenjei Zhang ◽  
Chuanguo Li ◽  
Ruyuan Li
Keyword(s):  
Photocatalytic Activity ◽  
Composite Materials ◽  
Sol Gel ◽  
Al2o3 Composite ◽  
Gel Preparation

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

Porous TiO2-Al2O3 Photocatalyst: The Effects of Calcination Time

2012 ◽  
Vol 496 ◽  
pp. 165-168 ◽  
Author(s):  
Wen Jie Zhang ◽  
Hong Liang Xin
Keyword(s):  
Composite Materials ◽  
Average Pore Size ◽  
Sol Gel ◽  
Specific Area ◽  
Maximum Activity ◽  
Calcination Time ◽  
Average Pore ◽  
Porous Tio2 ◽  
Al2o3 Composite ◽  
Ft Ir

Porous TiO2-Al2O3 composite materials were prepared through sol-gel method after calcination at 500 oC for different time. FT-IR spectra of porous TiO2-Al2O3 composite materials revealed that the samples are composed of Al2O3 and TiO2. The sample calcinated for 2.5 h had the maximum specific area of 128.9 m2•g-1. High pore volume and average pore size were possessed by the samples calcinated for 1 h and 3 h. While being calcinated at 500 oC, photocatalytic activities of the materials increased at first and then dropped down with the increasing calcination time. The sample calcinated for 3 h showed the maximum activity of 35%.

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
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