Photocatalytic performance of porous TiO2 layers prepared by quantitative electrophoretic deposition from organic solvents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00487729" target="_blank" >RIV/61388955:_____/18:00487729 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.apcatb.2018.01.035" target="_blank" >http://dx.doi.org/10.1016/j.apcatb.2018.01.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcatb.2018.01.035" target="_blank" >10.1016/j.apcatb.2018.01.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic performance of porous TiO2 layers prepared by quantitative electrophoretic deposition from organic solvents

Popis výsledku v původním jazyce

Highly-crystalline TiO2 nanoparticles coated on a suitable substrate make excellent photocatalysts for environmentalnapplications. While electrophoretic deposition is frequently used to prepare such layers on a conductivensupport, this method often requires the presence of an additive to suppress nanoparticle agglomerationnand increase particle surface charge. However, the presence of an additive can lead to contamination that negativelynaffects layer properties. To overcome this drawback, we developed an optimized electrophoretic methodnfor the preparation of porous TiO2 layers, whose photocatalytic performance in the degradation of a toxicncompound was analyzed. Our method enabled TiO2 layers (anatase, rutile and their mixture) to be quantitativelyndeposited on rigid substrates (stainless steel, FTO-glass and silicon wafers) without sintering and without the usenof a dispersive additive. The photocatalytic performance of layers depended on the structural properties ofntitania particles, especially their allotropic form (anatase vs. rutile) and crystallinity, and on the presents ofndefects within the crystals. For well-developed crystals of anatase phase a high rate of the degradation of 4-nchlorophenol and its almost complete mineralization were achieved. Owing to their excellent properties,nespecially stability and photocatalytic performance, the layers prepared by EPD are suitable for a broad range ofnenvironmental applications.

Název v anglickém jazyce

Photocatalytic performance of porous TiO2 layers prepared by quantitative electrophoretic deposition from organic solvents

Popis výsledku anglicky

Highly-crystalline TiO2 nanoparticles coated on a suitable substrate make excellent photocatalysts for environmentalnapplications. While electrophoretic deposition is frequently used to prepare such layers on a conductivensupport, this method often requires the presence of an additive to suppress nanoparticle agglomerationnand increase particle surface charge. However, the presence of an additive can lead to contamination that negativelynaffects layer properties. To overcome this drawback, we developed an optimized electrophoretic methodnfor the preparation of porous TiO2 layers, whose photocatalytic performance in the degradation of a toxicncompound was analyzed. Our method enabled TiO2 layers (anatase, rutile and their mixture) to be quantitativelyndeposited on rigid substrates (stainless steel, FTO-glass and silicon wafers) without sintering and without the usenof a dispersive additive. The photocatalytic performance of layers depended on the structural properties ofntitania particles, especially their allotropic form (anatase vs. rutile) and crystallinity, and on the presents ofndefects within the crystals. For well-developed crystals of anatase phase a high rate of the degradation of 4-nchlorophenol and its almost complete mineralization were achieved. Owing to their excellent properties,nespecially stability and photocatalytic performance, the layers prepared by EPD are suitable for a broad range ofnenvironmental applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

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

227

Číslo periodika v rámci svazku

JUL 2018

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

70-78

Kód UT WoS článku

000428491000008

EID výsledku v databázi Scopus

2-s2.0-85042929047