"Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts"@en . . . "Vrstvy tvo\u0159en\u00E9 samoorganizovan\u00FDmi nano-trubi\u010Dkami TiO2 jako vysoce \u00FA\u010Dinn\u00FD fotokatalyz\u00E1tor"@cs . . . "RIV/60461373:22310/07:00018683!RIV08-MSM-22310___" . "Zl\u00E1mal, Martin" . . "2" . "V t\u00E9to pr\u00E1ci jsme se zab\u00FDvali fotokatalytick\u00FDmi vlastnostmi vrstev tvo\u0159en\u00FDch samoorganizovan\u00FDmi nanotrubi\u010Dkami TiO2. Anodickou oxidac\u00ED titanu v elektrolytu obsahuj\u00EDc\u00EDm fluoridy byly p\u0159ipraveny dv\u011B odli\u0161n\u00E9 formy nanotrubi\u010Dek - %22kr\u00E1tk\u00E9%22 trubi\u010Dky (d\u00E9lka ~500 nm) a %22dlouh\u00E9%22 nanotrubi\u010Dky (d\u00E9lka ~2,5 m). Pr\u016Fm\u011Br trubi\u010Dek byl p\u0159ibli\u017En\u011B 100 nm a tlou\u0161\u0165ka st\u011Bny p\u0159ibli\u017En\u011B 15 nm. Po vy\u017E\u00EDh\u00E1n\u00ED p\u0159e\u0161la krystalov\u00E1 struktura vrstvy trubi\u010Dek na anatas a d\u00E1le jsme je pou\u017Eili k fotokatalytick\u00E9 degradaci modelov\u00FDch l\u00E1tek Acid Oran\u017E 7 a Methylenov\u00E1 mod\u0159. Pro srovn\u00E1n\u00ED jsme p\u0159ipravili tak\u00E9 anodick\u00FD film TiO2 (tlou\u0161\u0165ka ~ 50 nm). Z v\u00FDsledk\u016F je patrn\u00E9, \u017Ee %22dlouh\u00E9%22 nanotrubi\u010Dky maj\u00ED vy\u0161\u0161\u00ED fotokatalytickou aktivitu ne\u017E %22kr\u00E1tk\u00E9%22, kter\u00E9 jsou st\u00E1le v\u00EDce fotokatalyticky aktivn\u011Bj\u0161\u00ED ne\u017E kompaktn\u00ED film TiO2. Rozklad modelov\u00FDch l\u00E1tek prob\u00EDh\u00E1 kinetikou pseudoprvn\u00EDho \u0159\u00E1du. D\u00E1le jsme studovali u %22dlouh\u00FDch%22 nanotrubi\u010Dek vliv intenzity UV z\u00E1\u0159en\u00ED a vliv po\u010D\u00E1te\u010Dn\u00ED koncentrace Acid Oran\u017Ee 7 na fot"@cs . . "449322" . . . "P(1M0577)" . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "Schmuki, P." . . "Vrstvy tvo\u0159en\u00E9 samoorganizovan\u00FDmi nano-trubi\u010Dkami TiO2 jako vysoce \u00FA\u010Dinn\u00FD fotokatalyz\u00E1tor"@cs . "3" . . "4"^^ . . "SMALL" . . "300-304" . "2"^^ . "22310" . . . . . "Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts" . "Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts" . "RIV/60461373:22310/07:00018683" . "Decomposition; nanotubes; organic dyes; photocatalysis; titanium dioxide"@en . "In this work we investigate the photocatalytic properties of self-organized TiO2 nanotube layers. The tubes were grown by anodization of titanium in floride containing electrolytes in two different forms as a %22short%22 tubes (length ~500 nm) and as a %22long%22 tubes (length ~2.5 m) with a tube diameter and wall thickness of approx. 100 and 15 nm, respectively. After annealing the tubes to anatase, we used them for the UV light photocatalytic decomposition of Acid Orange 7 and Methylene Blue as a model compounds. For comparison we investigated also compact anodic TiO2 film (thickness ~ 50 nm). The results show that %22long%22 tubes are in photocatalytic decomposition more effective than %22short%22 tubes, which are better than compact anodic TiO2 layer. The decomposition follows pseudo-first order kinetics. We studied also influence of the initial UV light intensity and the starting concentration of Acid Orange 7 for the long tubes. The present result show that self-organized" . "Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts"@en . "In this work we investigate the photocatalytic properties of self-organized TiO2 nanotube layers. The tubes were grown by anodization of titanium in floride containing electrolytes in two different forms as a %22short%22 tubes (length ~500 nm) and as a %22long%22 tubes (length ~2.5 m) with a tube diameter and wall thickness of approx. 100 and 15 nm, respectively. After annealing the tubes to anatase, we used them for the UV light photocatalytic decomposition of Acid Orange 7 and Methylene Blue as a model compounds. For comparison we investigated also compact anodic TiO2 film (thickness ~ 50 nm). The results show that %22long%22 tubes are in photocatalytic decomposition more effective than %22short%22 tubes, which are better than compact anodic TiO2 layer. The decomposition follows pseudo-first order kinetics. We studied also influence of the initial UV light intensity and the starting concentration of Acid Orange 7 for the long tubes. The present result show that self-organized"@en . "5"^^ . "Mac\u00E1k, Jan" . . "Kr\u00FDsa, Josef" . "[6196B6A070C4]" . . "1613-6810" .