Bio-templated synthesis of hierarchically ordered macro-mesoporous anatase titanium dioxide flakes with high photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15572-15578 ◽  
Author(s):  
Bing Li ◽  
Jianquan Zhao ◽  
Jing Liu ◽  
Xinyu Shen ◽  
Shaobo Mo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Templated Synthesis ◽  
Rose Petals

Hierarchically ordered macro-mesoporous anatase TiO2 flakes were synthesized by using rose petals and P123 as dual templates with high photocatalytic activity.

scholarly journals Stannic Oxide-Titanium Dioxide Coupled Semiconductor Photocatalyst Loaded with Polyaniline for Enhanced Photocatalytic Oxidation of 1-Octene

2007 ◽  
Vol 2007 ◽  
pp. 1-6 ◽  
Author(s):  
Hadi Nur ◽  
Izan Izwan Misnon ◽  
Lim Kheng Wei
Keyword(s):  
Electrical Conductivity ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Charge Separation ◽  
Photocatalytic Oxidation ◽  
High Photocatalytic Activity ◽  
Stannic Oxide ◽  
Aqueous Hydrogen Peroxide ◽  
Semiconductor Photocatalyst ◽  
Coupled Semiconductor

Stannic oxide-titanium dioxide (SnO2–TiO2) coupled semiconductor photocatalyst loaded with polyaniline (PANI), a conducting polymer, possesses a high photocatalytic activity in oxidation of 1-octene to 1,2-epoxyoctane with aqueous hydrogen peroxide. The photocatalyst was prepared by impregnation ofSnO2and followed by attachment of PANI onto aTiO2powder to give sample PANI-SnO2–TiO2. The electrical conductivity of the system becomes high in the presence of PANI. Enhanced photocatalytic activity was observed in the case of PANI-SnO2–TiO2compared to PANI-TiO2,SnO2–TiO2, andTiO2. A higher photocatalytic activity in the oxidation of 1-octene on PANI-SnO2–TiO2thanSnO2–TiO2, PANI-TiO2, andTiO2can be considered as an evidence of enhanced charge separation of PANI-SnO2–TiO2photocatalyst as confirmed by photoluminescence spectroscopy. It suggests that photoinjected electrons are tunneled fromTiO2toSnO2and then to PANI in order to allow wider separation of excited carriers.

High Photocatalytic Activity Nanomaterials Based on Titanium Dioxide

2019 ◽  
Vol 14 (5-6) ◽  
pp. 190-196
Author(s):  
E. A. Konstantinova ◽  
M. P. Kushnikov ◽  
V. B. Zaitsev ◽  
V. G. Kytin ◽  
A. V. Marikutsa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity

scholarly journals MODIFICATION OF TITANIUM DIOXIDE NANOMATERIALS BY SULFUR FOR PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE EVEN UNDER VISIBLE LIGHT

2018 ◽  
Vol 54 (2A) ◽  
pp. 164
Author(s):  
Nguyen Tan Lam
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Sodium Sulfate ◽  
High Photocatalytic Activity ◽  
Doped Titanium Dioxide ◽  
Modification Of Titanium ◽  
Very High

This paper presents a study on preparation of sulfur doped titanium dioxide using potassium fluorotitanate and sodium sulfate as precursors. The obtained results indicated that the doped TiO2 exhibited very high photocatalytic activity for degradation of methylene blue even under visible light. The increasing in the added sulfur amounts led to significantly increase in the degradation of methylene blue. When the S/TiO2 mole ratios increased from 10 to 25%, the degradation of methylene blue under compact light increased from 30.87% to 67.06%, respectively.

Templated synthesis of atomically thin platy hematite nanoparticles within a layered silicate exhibiting efficient photocatalytic activity

2018 ◽  
Vol 6 (12) ◽  
pp. 5166-5171 ◽  
Author(s):  
Durai Mani ◽  
Nao Tsunoji ◽  
Yusuke Yumauchi ◽  
Mukannan Arivanandhan ◽  
Ramasamy Jayavel ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Iron Oxides ◽  
Layered Silicate ◽  
High Photocatalytic Activity ◽  
Hematite Nanoparticles ◽  
Templated Synthesis ◽  
Co Catalysts

In contrast to usual iron oxides, atomically-thin hematite nanoplates synthesized within a layered silicate show significantly high photocatalytic activity without any co-catalysts.

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