Preparation and photocatalytic activity of Cu-deposited TiO2 film with high transparency

Yamazaki, Suzuko; Sato, Masahiro; Yasunaga, Eriko; Shimooka, Tomoko; Adachi, Kenta

doi:10.1016/j.jphotochem.2009.11.002

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…As a consequence of titania modification with copper, it can exist as copper oxides (Cu 2 O, CuO), 15,23,25,26,[28][29][30] copper metal deposited on the titania surface 17,19,20,22,[31][32][33] or as dispersed ions in the titania lattice. 29,34 There are also reports identifying copper in the form of the distorted CuO cluster in which the apical oxygen approaches the Cu(II), thereby forming a five-coordinate square pyramid.…”

Section: Phase and Copper Species Analysismentioning

confidence: 99%

Transparent thin films of Cu-TiO2 with visible light photocatalytic activity

Janczarek

Zielińska‐Jurek

Markowska

et al. 2015

Photochem Photobiol Sci

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Thin films of Cu-TiO2 with a high level of transparency were prepared by a dip-coating procedure on the glass surface. CuCl2 was used as a copper precursor added during sol-gel synthesis of TiO2. The extension of optical absorption into the visible region of as-prepared thin films was indicated by UV/Vis spectroscopy. Only the anatase phase was detected by X-ray diffraction analysis (XRD). The presence of copper in the structure of thin films was confirmed by energy dispersive X-ray spectrometry (EDS). The significant rate of phenol and 4-chlorophenol mineralization was observed during visible light irradiation. The photocatalytic activity of the prepared thin films is correlated with the optimum copper content in the structure. Copper in metallic form and cupric oxides were not detected by XRD and scanning electron microscopy analysis. It is suggested that copper may exist as dispersed ions in the TiO2 lattice.

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Section: Phase and Copper Species Analysismentioning

confidence: 99%

Transparent thin films of Cu-TiO2 with visible light photocatalytic activity

Janczarek

Zielińska‐Jurek

Markowska

et al. 2015

Photochem Photobiol Sci

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Comparative investigation of hydrogen production over Ag-, Ni-, and Cu-loaded mesoporous-assembled TiO2–ZrO2 mixed oxide nanocrystal photocatalysts

Onsuratoom

Puangpetch

Chavadej

2011

Chemical Engineering Journal

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Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles

et al. 2011

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Cu nanoparticles (NPs) were deposited on UV-irradiated TiO(2) in an aqueous solution containing Cu(CH(3)COO)(2) and ethanol by a photocatalytic reaction. Cu NPs on TiO(2) exhibit an extinction (= absorption + scattering + reflection) peak due to localized surface plasmon resonance at around 600 nm initially. The density and size as well as the extinction of Cu NPs increase during the deposition, accompanied by a slight redshift of the peak. Eventually, TiO(2) is mostly covered with coalesced Cu NPs that exhibit a spectrum less characteristic of Cu NPs, but more characteristic of a Cu layer.

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Preparation and photocatalytic activity of Cu-deposited TiO2 film with high transparency

Cited by 4 publications

References 16 publications

Transparent thin films of Cu-TiO2 with visible light photocatalytic activity

Transparent thin films of Cu-TiO2 with visible light photocatalytic activity

Comparative investigation of hydrogen production over Ag-, Ni-, and Cu-loaded mesoporous-assembled TiO2–ZrO2 mixed oxide nanocrystal photocatalysts

Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles

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