Photocatalytic degradation characteristic of amorphous TiO2-W thin films deposited by magnetron sputtering

Huang, Jiamu; Li, Yue-xia; Zhao, Guodong; Xiao-ping, Cai

doi:10.1016/s1003-6326(06)60191-x

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…Interestingly, amorphous TiO 2 -WO 3 composite film deposited by magnetron sputtering without thermal treatment process was found to possess high reactivity in the photocatalytic experiment in 2004 [29]. This route of coupling the composite semiconductor to amorphous TiO 2 has been successfully employed for various metal oxides and could shed light on the application of amorphous TiO 2 .…”

Section: Introductionmentioning

confidence: 93%

“…The working pressure was kept at 1.0 Pa during the sputtering process. According to critical analysis of the influence of deposition parameters on photocatalytic activities of the various composite films [29][30][31], the optimum preparative parameters of some TiO 2 -based films possessing high photocatalytic activity are summarized in Table 1. Appropriate compositing quantity was identified for each coupling oxide semiconductor.…”

Section: Recent Advances Of Amorphous Tio 2 -Based Photocatalytic Filmsmentioning

confidence: 99%

“…Figure 1 presents a typical example of the XRD spectrum of amorphous TiO 2 -W film [29]. The XRD analysis shows that the crystalline structures of the TiO 2 -based photocatalytic films deposited are amorphous.…”

Section: Crystalline Structurementioning

confidence: 99%

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The photocatalytic properties of amorphous TiO2 composite films deposited by magnetron sputtering

Huang

Liu

et al. 2011

Res Chem Intermed

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The preparation of amorphous TiO 2 film coupled with various metaloxide semiconductors and their photocatalytic activities evaluated by photodegradation of methylene blue and rhodamine B aqueous solution are briefly reviewed. The proposed photoreaction mechanism of the amorphous composite semiconductor and the differences between amorphous TiO 2 -based films and crystalline TiO 2 photocatalytic materials in terms of preparation and usage are addressed. The inactive intrinsic amorphous TiO 2 film coupled with various metal oxides were found to gain high photocatalytic activity. These dopants induce forming new energy levels in the band gap of TiO 2 to enhance the charge separation of the photoinduced electrons and holes and extend the light absorption of TiO 2 -based photocatalytic films into the visible region. In addition, two different effects of coupling metal oxides have been proved: the introduction of oxides of W, Cr, V, Ag, and Mo can significantly increase the photo-reactivity of amorphous TiO 2 film, while the combination of oxides of Zr, Sn, Sb, Cu, Ta, Fe, and Ni cannot affect the inactivity of pure amorphous TiO 2 film.

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Section: Introductionmentioning

confidence: 93%

Section: Recent Advances Of Amorphous Tio 2 -Based Photocatalytic Filmsmentioning

confidence: 99%

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The photocatalytic properties of amorphous TiO2 composite films deposited by magnetron sputtering

Huang

Liu

et al. 2011

Res Chem Intermed

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“…The spectra do not drop sharply in the wavelength range of 340 to 400 nm but a high K-M absorbance continues to longer wavelengths, especially for the FeT-VS coating. This is a consequence of an interaction of the metal ions (in our case Fe) with the TiO 2 catalyst [22,23]. A meaning of it is that more irradiation light energy of a broad-band source can be utilized.…”

Section: Fig 4 Raman Spectra Of the Coatings -Fet Fet-vs And The Refe...mentioning

confidence: 99%

Photocatalytic Activity of Titanium Oxide – Iron Oxide Coatings Prepared by Plasma Spraying

Ctibor

2013

ACSJ

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This work was carried out in collaboration between all authors. Author PC designed the study, supervised all spray experiments, performed the analysis of reflectivity, Raman and microscopy -based tests, mechanical tests, managed the literature searches and wrote the first draft of the manuscript. Author VS, performed the powder synthesis and all photocatalytic tests. Author ZP performed all XRD-based tests. All authors read and approved the final manuscript.

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“…The addition of W renders a metallic character to TiO 2 [124,125] . The modifi ed oxide, Ti 1-x W x O 2 can be produced as a nanostructured powder [122, 126 -128] and in thin fi lms [125,129,130] . The carbon-free catalyst Pt/Ti 0.7 W 0.3 O 2 has been evaluated for the ORR in acidic medium [122] .…”

Section: Ceramicsmentioning

confidence: 99%

Tailoring nanostructured catalysts for electrochemical energy conversion systems

Gago¹,

Habrioux

Alonso-Vante

2012

Nanotechnology Reviews

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This review covers topics related to the synthesis of nanoparticles, the anodic and cathodic electrochemical reactions and low temperature electrochemical energy devices. The thermodynamic aspects of nucleation and growth of nanoparticles are discussed. Different methods of chemical synthesis such as w/o microemulsion, B ö nnemann, polyol and carbonyl are presented. How the electrochemical reactions take place on the surface of the catalytic nanoparticles and the importance of the substrate is put in evidence. The use of nanomaterials in low temperature energy devices such as H 2 /O 2 polymer electrolyte or proton exchange membrane fuel cell (PEMFC) and micro-direct methanol fuel cell ( μ DMFC), as well as recent progress and durability, is discussed. Special attention is given to the novel laminar fl ow fuel cell (LFFC). This review starts with the genesis of catalytic nanoparticles, continues with the surface electrochemical reactions that occur on them, and fi nally it discusses their application in electrochemical energy devices such as low temperature fuel cells or Li-air batteries.

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Photocatalytic degradation characteristic of amorphous TiO2-W thin films deposited by magnetron sputtering

Cited by 8 publications

References 4 publications

The photocatalytic properties of amorphous TiO2 composite films deposited by magnetron sputtering

The photocatalytic properties of amorphous TiO2 composite films deposited by magnetron sputtering

Photocatalytic Activity of Titanium Oxide – Iron Oxide Coatings Prepared by Plasma Spraying

Tailoring nanostructured catalysts for electrochemical energy conversion systems

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