Preparation and Photocatalytic Performance of SO42-/CeO2-TiO2/HTLC

2014 ◽  
Vol 1073-1076 ◽  
pp. 3-7
Author(s):  
Ru Jun Xue ◽  
Chun Yang Chen ◽  
Shu Fen Cheng ◽  
Min Zhou
Keyword(s):  
Methyl Orange ◽  
Synergistic Effect ◽  
Visible Light ◽  
Active Component ◽  
Photocatalytic Performance ◽  
Experimental Results ◽  
Catalyst Precursor ◽  
Simulated Sunlight ◽  
Absorption Intensity ◽  
Decolorization Rate

Catalyst precursor was prepared with the Fe-Al hydrotalcite as the support, Ce-doped TiO2 as the active component. Then SO42-/CeO2-TiO2/HTLC photocatalyst was obtained by SO42- -modification with soak method. Catalysts were characterized by means of XRD, SEM-EDS and UV-Vis DRS. With methyl orange as model pollutant, the photocatalytic performance of the catalysts was determined. Experimental results showed that the absorption intensity for visible light of the CeO2-TiO2 particle was stronger than that of TiO2 particle; moreover there was a synergistic effect between SO42- and CeO2-TiO2/HTLC, thus the absorption intensity for visible light of SO42-/CeO2-TiO2/HTLC photocatalyst was enhanced further. The decolorization rate for methyl orange of modified SO42-/15%(CeO2-TiO2)/HTLC photocatalyst reached 93% after irradiation under simulated sunlight for 2 hours.

Excellent visible-light-driven photocatalytic performance of Cu2O sensitized NaNbO3heterostructures

2015 ◽  
Vol 39 (8) ◽  
pp. 6171-6177 ◽  
Author(s):  
Mingshan Fan ◽  
Bo Hu ◽  
Xu Yan ◽  
Chengjie Song ◽  
Tianjun Chen ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Catalytic Activities ◽  
Visible Light Driven ◽  
Degradation Of Methyl Orange

Heterostructure complexes of Cu2O/NaNbO3exhibited high catalytic activities on the degradation of methyl orange.

scholarly journals Facile Solvothermal Synthesis of Hollow BiOBr Submicrospheres with Enhanced Visible-Light-Responsive Photocatalytic Performance

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Linrui Hou ◽  
Yawei Niu ◽  
Fan Yang ◽  
Fengyue Ge ◽  
Changzhou Yuan
Keyword(s):  
Waste Water ◽  
Methyl Orange ◽  
Water Treatment ◽  
Visible Light ◽  
Solvothermal Synthesis ◽  
Photocatalytic Performance ◽  
Waste Water Treatment ◽  
Commercial Application ◽  
Visible Light Absorption ◽  
Photocatalytic Activities

In this work, hierarchical hollow BiOBr submicrospheres (HBSMs) were successfully prepared via a facile yet efficient solvothermal strategy. Remarkable effects of solvents upon the crystallinities, morphologies, and microstructures of the BiOBr products were systematically investigated, which revealed that the glycerol/isopropanol volumetric ratio played a significant role in the formation of hollow architecture. Accordingly, the underlying formation mechanism of the hollow submicrospheres was tentatively put forward here. Furthermore, the photocatalytic activities of the resulting HBSMs were evaluated in detail with photocatalytic degradation of the organic methyl orange under visible light irradiation. Encouragingly, the as-obtained HBSMs with striking recyclability demonstrated excellent visible-light-responsive photocatalytic performance, which benefits from their large surface area, effective visible light absorption, and unique hollow feature, highlighting their promising commercial application in waste water treatment.

Mesoporous Ag/TiO2nanocomposites with greatly enhanced photocatalytic performance towards degradation of methyl orange under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59297-59305 ◽  
Author(s):  
Zhengfeng Zhao ◽  
Yingzi Wang ◽  
Jing Xu ◽  
Yan Wang
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Uv Irradiation ◽  
Photocatalytic Performance ◽  
Degradation Of Methyl Orange

Mesoporous Ag/TiO2nanocomposites fabricated by dealloying/calcination show superior photocatalytic performance under visible light as well as UV irradiation.

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.

scholarly journals The synergistic effect between WO3 and g-C3N4 towards efficient visible-light-driven photocatalytic performance

2014 ◽  
Vol 38 (11) ◽  
pp. 5462-5469 ◽  
Author(s):  
Imran Aslam ◽  
Chuanbao Cao ◽  
Muhammad Tanveer ◽  
Waheed S. Khan ◽  
Muhammad Tahir ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Visible Light Driven

The photocatalyst showed efficient enhanced photocatalytic performance, which is about 3.65 and 3.72 times greater than pure WO3 and g-C3N4 respectively.

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.

scholarly journals Heterogeneous Deposition of Cu2O Nanoparticles on TiO2Nanotube Array Films in Organic Solvent

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Xinwen Huang ◽  
Zongjian Liu
Keyword(s):  
Methyl Orange ◽  
Ethylene Glycol ◽  
Organic Solvent ◽  
Visible Light ◽  
Electrochemical Method ◽  
Simulated Sunlight ◽  
Organic Solution ◽  
Nanotube Array ◽  
Cu2o Nanoparticles ◽  
Novel Method

A novel method for decoration of anodic TiO2nanotube array films (NAFs) with Cu2O nanoparticles has been reported. The method is based on the reduction of Cu(II) in a mixture of ethylene glycol and N,N-dimethylformamide at 120°C for 16 h, where the resulting Cu2O can heterogeneously nucleate and grow on TiO2NAFs. The nanosized Cu2O is found to be well dispersed on the wall of TiO2nanotubes without blocking the nanotube, a commonly observed phenomenon in the case of deposition of Cu2O via electrochemical method. The amount of Cu2O deposited on the TiO2NAFs can be varied by adjusting the concentration of Cu(II) in the organic solution. UV-vis spectra measurement indicates that the decoration of TiO2NAFs with Cu2O nanoparticles greatly improves their ability to respond to visible light. By examining the photocurrent and photodegradation of methyl orange under simulated sunlight, it is found that these Cu2O-decorated TiO2NAFs show much more photoactive in comparison with the as-prepared TiO2NAFs.

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