Aging of the photocatalytic TiO2 thin films modified by Ag and Pt

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F14%3A%230006377" target="_blank" >RIV/46747885:24210/14:#0006377 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62243136:_____/14:MPO16CL RIV/44555601:13440/14:43885837

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0926337314002719/pdfft?md5=879213fe532a0d4084fb002b0d5de336&pid=1-s2.0-S0926337314002719-main.pdf" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0926337314002719/pdfft?md5=879213fe532a0d4084fb002b0d5de336&pid=1-s2.0-S0926337314002719-main.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcatb.2014.04.045" target="_blank" >10.1016/j.apcatb.2014.04.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Aging of the photocatalytic TiO2 thin films modified by Ag and Pt

Popis výsledku v původním jazyce

This work focuses on the investigation of the photocatalytic activity of the TiO2 thin films (either modified or unmodified by noble metal) and on its stability during 16 months after deposition. RF discharge was used to deposit the TiO2 thin films by PECVD from the mixture of titanium isopropoxide (TIP) vapors and oxygen. The surface of TiO2 films was subsequently modified by Ag or Pt by means of magnetron sputtering. Several analytical methods were used to characterize the thin films properties. XPS was used to investigate the chemical composition of the surface, SEM to study the surface morphology. The photocatalytic activity was expressed in terms of photocatalytic efficiency and it was determined by decomposition of the organic dye Acid orange 7 (AO7). The results show that the enhancement of the photocatalytic efficiency achieved by the modification by Ag or Pt decreases with time, but it is still several times higher after 16 months aging than in case of unmodified TiO2 layers.

Název v anglickém jazyce

Aging of the photocatalytic TiO2 thin films modified by Ag and Pt

Popis výsledku anglicky

This work focuses on the investigation of the photocatalytic activity of the TiO2 thin films (either modified or unmodified by noble metal) and on its stability during 16 months after deposition. RF discharge was used to deposit the TiO2 thin films by PECVD from the mixture of titanium isopropoxide (TIP) vapors and oxygen. The surface of TiO2 films was subsequently modified by Ag or Pt by means of magnetron sputtering. Several analytical methods were used to characterize the thin films properties. XPS was used to investigate the chemical composition of the surface, SEM to study the surface morphology. The photocatalytic activity was expressed in terms of photocatalytic efficiency and it was determined by decomposition of the organic dye Acid orange 7 (AO7). The results show that the enhancement of the photocatalytic efficiency achieved by the modification by Ag or Pt decreases with time, but it is still several times higher after 16 months aging than in case of unmodified TiO2 layers.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

APPLIED CATALYSIS B-ENVIRONMENTAL

ISSN

0926-3373

e-ISSN

—

Svazek periodika

160?161

Číslo periodika v rámci svazku

NOV 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

51-56

Kód UT WoS článku

000340687900006

EID výsledku v databázi Scopus

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