UV highly absorbent coatings with CeO2 and TiO2

Saínz, M.A.; Durán, Alicia; Navarro, José María Fernández

doi:10.1016/0022-3093(90)90150-k

Cited by 61 publications

(24 citation statements)

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“…From Fig.2 it can also be obviously seen that the UV absorption properties of the coating-glass samples, deposited using the target (f) with CeO 2 /TiO 2 =0.50:0.50 and (g) with CeO 2 /TiO 2 =0.60:0.40, are very good, and almost 100% UV can be absorbed. These results are in accordance with that of M A Sainz et al [1] and Takeshi Morimoto et al [2] . 3.2 XRD pattern of the CeO 2 -TiO 2 fi lms Fig 3 shows the XRD patterns of CeO 2 -TiO 2 fi lms deposited on glass substrates, using different targets.…”

Section: Resultssupporting

confidence: 95%

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Preparation and characterization of CeO2-TiO2/SnO2:Sb films deposited on glass substrates by R.F. sputtering

Zhao

Yao

et al. 2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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CeO 2 -TiO 2 films and CeO 2 -TiO 2 /SnO 2 :Sb (6 mol%) double films were deposited on glass substrates by radio-frequency magnetron sputtering (R.F. Sputtering), using SnO 2 :Sb(6 mol%) target, and CeO 2 -TiO 2 targets with different molar ratio of CeO 2 to TiO 2 (CeO 2 :TiO 2 =0:1.0; 0.1:0.9; 0.2:0.8; 0.3:0.7; 0.4:0.6; 0.5:0.5; 0.6:0.4; 0.7:0.3; 0.8:0.2; 0.9:0.1; 1.0:0). The fi lms are characterized by UV-visible transmission and infrared reflection spectra, scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), respectively. The obtained results show that the amorphous phases composed of CeO 2 -TiO 2 play an important role in absorbing UV, there are Ce 3+ , Ce 4+ and Ti 4+ on the surface of the films; the glass substrates coated with CeO 2 -TiO 2 (Ce/Ti=0.5:0.5; 0.6:0.4)/SnO 2 :Sb(6 mol%) double fi lms show high absorbing UV(>99), high visible light transmission (75%) and good infrared refl ection (>70%). The sheet resistance of the fi lms is 30-50 Ω/□. The glass substrates coated with the double functional fi lms can be used as window glass of buildings, automobile and so on.

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Section: Resultssupporting

confidence: 95%

“…It was proved that TiO 2 -CeO 2 films coated on glass by sol-gel process showed UV absorption [1] . Double-layered fi lms on glass by sol-gel process with inner TiO 2 -SiO 2 fi lms and outer TiO 2 -CeO 2 fi lms were also reported [2] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of CeO2-TiO2/SnO2:Sb films deposited on glass substrates by R.F. sputtering

Zhao

Yao

et al. 2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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“…It narrows the energy gap and extends the absorption edge to the visible light range. While for Ce-TiO 2 sample, yellow cerium oxide is formed in TiO 2 during the calcination process, which can absorb ultra-violet light [23]. In addition, the 4f orbital energy level of Ce below the conduction band of TiO 2 , the electrons of the valence band of Ce-TiO 2 and the ground state of Ce 2 O 3 can be excited into Ce 4f energy level under visible light irradiation, leading to light absorption wavelength red-shift [4,24].…”

Section: Xrd Analysismentioning

confidence: 99%

Preparation and Characterization of Ce/N-Codoped TiO2 Particles for Production of H2 by Photocatalytic Splitting Water Under Visible Light

et al. 2010

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Cerium and nitrogen codoped TiO 2 photocatalysts were successfully prepared by sol-gel method. The results showed that Ce doped in TiO 2 could prevent phase transition of anatase to rutile and inhibit the growth of crystallite. In addition, Ce and N codoped in TiO 2 enhanced the lattice distortion. N-Ti bond and N-Ti-O bond were formed in codoped titania, which narrowed the energy gap and extended the absorption edge to the visible light range, and the synergistic effects of the Ce and N codoped samples made the red shift more distinct. The results showed that the rate of hydrogen production was the best for the sample prepared under the conditions of the content of Ce doped for 0.6% (molar ratio) and calcination temperature of photocatalyst preparation at 500°C.

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“…8) In this way, although we could know the variation of Ce oxide species from the UV absorption spectra, the assignment seems not to have been well established on SiO 2 -CeO 2 system. In addition, since the UV absorption coefficient for each species is probably much different from each other and it can easily vary with their environments, 9) quantitative estimation of these species by UV spectroscopy would be difficult. Ce L III -edge XANES spectroscopy has been proposed as a useful method for the quantitative determination of the ratio of Ce(III) and Ce(IV), since both species exhibit each distinguishable absorption peaks.…”

Section: Introductionmentioning

confidence: 99%

Valence of Highly Dispersed Cerium Oxide Species on Silica Quantitatively Estimated by Ce L<SUB>III</SUB>-edge XANES

et al. 2004

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A series of silica-supported cerium oxide samples having various cerium content were prepared by conventional impregnation method, followed by calcination in air. Ce L III -edge XANES study revealed that highly dispersed cerium oxide species on silica surface were predominantly in trivalent oxidation state and cerium oxide nano-particles on silica contain mainly tetravalent cation like as CeO 2 bulk oxide. This elucidated that UV absorption band at 265 nm is assignable to Ce(III) species dispersed on silica.

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UV highly absorbent coatings with CeO2 and TiO2

Cited by 61 publications

References 1 publication

Preparation and characterization of CeO2-TiO2/SnO2:Sb films deposited on glass substrates by R.F. sputtering

Preparation and characterization of CeO2-TiO2/SnO2:Sb films deposited on glass substrates by R.F. sputtering

Preparation and Characterization of Ce/N-Codoped TiO2 Particles for Production of H2 by Photocatalytic Splitting Water Under Visible Light

Valence of Highly Dispersed Cerium Oxide Species on Silica Quantitatively Estimated by Ce L<SUB>III</SUB>-edge XANES

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