Research on Visible Light Photocatalytic Performance of Tungsten Doped TiO2

2011 ◽  
Vol 236-238 ◽  
pp. 399-402
Author(s):  
Dao Xin Wu ◽  
Zhou Lan Yin ◽  
Qi Yuan Chen ◽  
Jie Li ◽  
Ke Long Huang
Keyword(s):  
Methyl Orange ◽  
Low Temperature ◽  
Visible Light ◽  
Crystalline State ◽  
Photocatalytic Performance ◽  
Catalyst Concentration ◽  
Tetrabutyl Titanate ◽  
Photodegradation Efficiency ◽  
Rutile Titania ◽  
Visible Light Photocatalytic

In this paper, W-doped rutile titania was prepared by low temperature hydrolysis using Tetrabutyl titanate. Powers were characterized by XRD、DRS、PL. At 1073K, Doped concentration have been in a certain range, Tungsten could be doped into the lattice of rutile TiO2in the way of replacement, which would cause no change in rutile TiO2crystalline state with sunlight as the light source, pH=2.0, catalyst concentration was 1.0g.L-1, concentration of methyl orange was 5.0mg.L-1. It has been shown that Tungsten doped TiO2powders(1.0%,1073K) has been the most photodegradation efficiency, and the degradation efficiency was 96.8% after 12h.

Coupling with a narrow-band-gap semiconductor for the enhancement of visible-light photocatalytic activity: preparation of Bi2OxS3−x/Nb6O17 and application to the degradation of methyl orange

2016 ◽  
Vol 45 (35) ◽  
pp. 13944-13950 ◽  
Author(s):  
Gang Yan ◽  
Hongfei Shi ◽  
Huaqiao Tan ◽  
Wanbin Zhu ◽  
Yonghui Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Performance ◽  
Narrow Band ◽  
Visible Light Photocatalytic Activity ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

A new 2D sheet composite Bi2OxS3−x/Nb6O17 has been prepared, which shows good visible light photocatalytic performance for the degradation of methyl orange.

Study on Photocatalytic Properties of Vanadium Doped Rutile TiO2

2012 ◽  
Vol 550-553 ◽  
pp. 192-195
Author(s):  
Dao Xin Wu ◽  
Hai Xia Tong ◽  
Chang Bin Xia
Keyword(s):  
Fluorescence Spectra ◽  
Diffuse Reflection ◽  
Catalyst Concentration ◽  
Raw Material ◽  
Tetrabutyl Titanate ◽  
Diffraction Spectrum ◽  
X Ray Diffraction ◽  
X Ray ◽  
Photodegradation Efficiency ◽  
Rutile Titania

Vanadium doped rutile titania was prepared by low temperature hydrolysis using Tetrabutyl titanate as raw material. Powers were characterized by X-ray diffraction spectrum (XRD)、diffuse reflection spectra(DRS)、fluorescence spectra (FS). At 1073K, Doped concentration have been in a certain range, Vanadiumcould be doped into the lattice of rutile TiO2in the way of replacement, which would cause no change in rutile TiO2crystalline state with sunlight as the light source, pH=6.0, catalyst concentration was 1.0g.L-1, concentration of methyl orange was 5.0mg.L-1. It has been shown that Vanadium doped TiO2powders(1.0%,1073K) has been the most photodegradation efficiency, and the degradation efficiency was 97.2% after 6h.

Enhanced visible light absorption and photocatalytic activity of [KNbO3]1−x[BaNi0.5Nb0.5O3−δ]x synthesized by sol–gel based Pechini method

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 82409-82416 ◽  
Author(s):  
Ping Wu ◽  
Guoming Wang ◽  
Ruizhi Chen ◽  
Yixin Guo ◽  
Xueming Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Low Temperature ◽  
Visible Light ◽  
Light Absorption ◽  
Photocatalytic Performance ◽  
Pechini Method ◽  
Sol Gel ◽  
Visible Light Absorption ◽  
Gel Method ◽  
Visible Light Photocatalytic

[KNbO3]1−x[BaNi0.5Nb0.5O3−δ]x were synthesized by Pechini sol–gel method at low temperature. Visible light photocatalytic performance of this material was evaluated.

Pt/POMs/TiO2 composite nanofibers with an enhanced visible-light photocatalytic performance for environmental remediation

2019 ◽  
Vol 48 (35) ◽  
pp. 13353-13359 ◽  
Author(s):  
Hongfei Shi ◽  
Tingting Zhao ◽  
Yue Zhang ◽  
Huaqiao Tan ◽  
Wenhui Shen ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Bisphenol A ◽  
Visible Light ◽  
Environmental Remediation ◽  
Composite Nanofibers ◽  
Photocatalytic Performance ◽  
Highly Efficient ◽  
Visible Light Photocatalytic

Pt/PMo12/TiO2 composite nanofibers have been prepared and exhibit a highly efficient visible-light photocatalytic performance for removing methyl orange, tetracycline, Bisphenol A and Cr(vi).

Low-Temperature Synthesis of Visible Light Driven TiO2 Microcrystal

2012 ◽  
Vol 512-515 ◽  
pp. 1927-1932
Author(s):  
Si Man Liu ◽  
Deng Liang He
Keyword(s):  
Methyl Orange ◽  
Low Temperature ◽  
Visible Light ◽  
Control Agent ◽  
Raw Material ◽  
Tetrabutyl Titanate ◽  
Visible Radiation ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Visible Light Driven

The TiO2microcrystal was prepared under low temperature using tetrabutyl titanate as raw material. The TiO2catalyst was characterized by XRD, SEM, TEM, FITR, and PL. At the same time, the degradation performance of TiO2microcrystal on methyl orange was studied in ordinary sunlight conditions. The experiments show that TiO2microcrystal at 85°C with 50 mL nitric acid as a crystal control agent can be obtained. Meanwhile, the light absorption of catalyst can be extended to the visible light; the methyl orange can be degraded within 100 min under visible radiation.

Study on Synthesis and Photocatalytic Activity of Titanium Dioxide/Tungsten Oxide

2011 ◽  
Vol 233-235 ◽  
pp. 2832-2835
Author(s):  
Dao Xin Wu ◽  
Zhou Lan Yin ◽  
Qi Yuan Chen ◽  
Jie Li ◽  
Ke Long Huang
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Low Temperature ◽  
Tungsten Oxide ◽  
Light Source ◽  
Catalyst Concentration ◽  
Degradation Efficiency ◽  
Photodegradation Efficiency ◽  
Hydrolysis Process

Originated from(C4H9O)4Ti, TiO2was synthesized by low temperature hydrolysis process in this paper. After being prepared by decomposing ammonium tungstate and covering on the surface of TiO2, TiO2/WO3were characterized by XRD, DRS, FS. With sunlight as the light source, pH=5.0, catalyst concentration was 1.0g.L-1, concentration of methyl orange was 5.0mg.L-1.It has been shown that TiO2/WO3powders(15%,873K) has the most photodegradation efficiency, and the degradation efficiency of 95% after 4 hours.

scholarly journals Construction of Ag3PO4/SnO2 Heterojunction on Carbon Cloth with Enhanced Visible Light Photocatalytic Degradation

2020 ◽  
Vol 10 (9) ◽  
pp. 3238
Author(s):  
Min Liu ◽  
Guangxin Wang ◽  
Panpan Xu ◽  
Yanfeng Zhu ◽  
Wuhui Li
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Photogenerated Electron ◽  
Carbon Cloth ◽  
Electron Hole ◽  
Step Process ◽  
Photogenerated Electrons ◽  
Rapid Transfer ◽  
Visible Light Photocatalytic

In this study, the Ag3PO4/SnO2 heterojunction on carbon cloth (Ag3PO4/SnO2/CC) was successfully fabricated via a facile two-step process. The results showed that the Ag3PO4/SnO2/CC heterojunction exhibited a remarkable photocatalytic performance for the degradation of Rhodamine B (RhB) and methylene blue (MB), under visible light irradiation. The calculated k values for the degradation of RhB and MB over Ag3PO4/SnO2/CC are 0.04716 min−1 and 0.04916 min−1, which are higher than those calculated for the reactions over Ag3PO4/SnO2, Ag3PO4/CC and SnO2/CC, respectively. The enhanced photocatalytic activity could mainly be attributed to the improved separation efficiency of photogenerated electron-hole pairs, after the formation of the Ag3PO4/SnO2/CC heterojunction. Moreover, carbon cloth with a large specific surface area and excellent conductivity was used as the substrate, which helped to increase the contact area of dye solution with photocatalysts and the rapid transfer of photogenerated electrons. Notably, when compared with the powder catalyst, the catalysts supported on carbon cloth are easier to quickly recycle from the pollutant solution, thereby reducing the probability of recontamination.

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