Trace surface fluorination and tungsten-intercalation cooperated dual modification induced photo-activity enhancement of titanium dioxide

2022 ◽  
Author(s):  
Yifan Xu ◽  
Zhongyuan Liu ◽  
Kunlun Wang ◽  
Chunyao Niu ◽  
Pengfei Yuan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Activity Enhancement ◽  
Surface Fluorination ◽  
And Tungsten

Heterogeneous photocatalytic and photosynthetic deposition of copper on Titanium dioxide and tungsten(VI) oxide powders

1979 ◽  
Vol 83 (17) ◽  
pp. 2248-2251 ◽  
Author(s):  
Harald. Reiche ◽  
Wendell W. Dunn ◽  
Allen J. Bard
Keyword(s):  
Titanium Dioxide ◽  
Oxide Powders ◽  
And Tungsten

Photocatalytic activity enhancement in doped titanium dioxide by crystal defects

2012 ◽  
Vol 41 (16) ◽  
pp. 4824 ◽  
Author(s):  
Kanakkanmavudi B. Jaimy ◽  
V. P. Safeena ◽  
Swapankumar Ghosh ◽  
Neha Y. Hebalkar ◽  
K. G. K. Warrier
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Crystal Defects ◽  
Activity Enhancement ◽  
Doped Titanium Dioxide

Effect of Surface Fluorination on the Electrochemical and Photoelectrocatalytic Properties of Nanoporous Titanium Dioxide Electrodes

Langmuir ◽  
2011 ◽  
Vol 27 (24) ◽  
pp. 15312-15321 ◽  
Author(s):  
Damián Monllor-Satoca ◽  
Teresa Lana-Villarreal ◽  
Roberto Gómez
Keyword(s):  
Titanium Dioxide ◽  
Surface Fluorination ◽  
Effect Of Surface ◽  
Nanoporous Titanium Dioxide

Effects of Surface Modification on the Photocatalytic Activity of TiO2

2010 ◽  
Vol 13 (3) ◽  
Author(s):  
Maria Vittoria Dozzi ◽  
Gian Luca Chiarello ◽  
Elena Selli
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Surface Modification ◽  
Surface Fluorination

AbstractThe photocatalytic activity of titanium dioxide modified by surface fluorination (F-TiO

scholarly journals Activity Enhancement of P25 Titanium Dioxide by Zinc Oxide for Photocatalytic Phenol Degradation

2021 ◽  
Vol 16 (2) ◽  
pp. 310-319
Author(s):  
Yehezkiel Steven Kurniawan ◽  
Leny Yuliati
Keyword(s):  
Zinc Oxide ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Rate Constant ◽  
Phenol Degradation ◽  
Reaction Rate Constant ◽  
X Ray Diffraction ◽  
Physical Mixing ◽  
Mixing Method ◽  
Activity Enhancement

As a benchmark photocatalyst, P25 titanium dioxide (TiO2) nanomaterial has been widely reported for its remarkable photocatalytic activity under ultraviolet (UV) irradiation. However, approaches to further improve the photocatalytic activity of the P25 TiO2 are still required. In the present work, we reported the activity enhancement of the P25 TiO2 up to more than five times higher rate constant for phenol degradation when the P25 TiO2 was coupled with zinc oxide (ZnO). The composites were prepared by a physical mixing method of P25 TiO2 and ZnO with various weight ratios of 1:0.5, 1:1, and 1:2. The composite materials were then characterized using X-ray diffraction (XRD), diffuse-reflectance ultraviolet-visible (DR UV-vis), Fourier transform infrared (FTIR), and fluorescence spectroscopies. All the composites gave better activity than the P25 TiO2, in which the TiO2/ZnO 1:1 composite material exhibited the highest first-order reaction rate constant (0.43 h−1). This remarkable enhanced degradation rate was much higher than that of the unmodified TiO2 (0.08 h−1) and ZnO (0.13 h-1). The fluorescence study revealed that the electron-hole recombination on the P25 TiO2 could be suppressed by the ZnO, which would be the reason for such activity enhancement. A study on the effect of the scavenger showed that the hydroxyl radicals played a crucial role in the photocatalytic phenol degradation. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 

Development of photochromic device with magnetron sputtered titanium dioxide and tungsten trioxide films

2017 ◽  
Vol 166 ◽  
pp. 204-211 ◽  
Author(s):  
Shankar Bogati ◽  
Rabin Basnet ◽  
Wolfgang Graf ◽  
Andreas Georg
Keyword(s):  
Titanium Dioxide ◽  
Tungsten Trioxide ◽  
And Tungsten
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