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101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aPhotoactive TiO2 coatings obtained by Plasma Electrolytic Oxidation in refrigerated electrolytes
_fS. Franz [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 505 (58 tit.)]
330 _aThe effect of synthesis conditions on the properties of nanoporous TiO2 coatings obtained by PEO in refrigerated electrolytes have been investigated. Linear sweep voltammetry was carried out on the TiO2 coatings, in dark and under UV-C irradiation, in order to assess the photoelectrochemical behavior of samples. The largest photocurrents (0.18 mA/cm2) were measured on TiO2 coatings obtained by PEO in refrigerated aqueous solutions. UV-vis spectra revealed that lowering the processing temperature from 20 to −3.5 °C induced a blue-shift of the absorption band of the TiO2coatings from 3.05 to 3.42 eV. The main advantage of PEO in refrigerated aqueous solutions over current approaches, based on anodic oxidation and thermal treatments, is that the synthesis of photoactive TiO2 coatings can be carried out in a relatively easy, quick and reproducible way, without annealing pre- and post-treatments. Furthermore, by controlling the solution temperature in PEO process, the photocurrent of the resulting TiO2 coating reaches quite high values.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tApplied Surface Science
_d1985-
463 _tVol. 385
_v[P. 498-505]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
701 1 _aFranz
_bS.
_gSilvia
701 1 _aPerego
_bD.
_gDaniele
701 1 _aMarchese
_bM.
_gMarchese
701 1 _aLucotti
_bA.
_gAndrea
701 1 _aBestetti
_bM.
_cphysicist
_cResearcher of Tomsk Polytechnic University
_f1965-
_gMassimiliano
_2stltpush
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712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра экспериментальной физики (ЭФ)
_h7596
_2stltpush
_3(RuTPU)RU\TPU\col\21255
801 2 _aRU
_b63413507
_c20160824
_gRCR
856 4 _uhttp://dx.doi.org/10.1016/j.apsusc.2016.05.032
942 _cCF