Fotokatalytická degradace kyseliny mravenčí na nekých vrstvách oxidu titaničitého

Kód výsledku v IS VaVaI

RIV/00216305:26310/08:PU77368 - isvavai.cz

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic Degradation of Formic Acid on TiO2 Thin Layers

Popis výsledku v původním jazyce

TiO2 thin films were deposited onto borosilicate glass plates by sol-gel technique using dip-coating and printing methods. Formic acid (FA) was choosen because of simple mechanism of degradation: it undergoes direct mineralisation to CO2 and H2O withoutthe formation of any stable intermediate species. Moreover, it also represents a possible final step in the photodegradation of more complex organic compounds. Photocatalytic activity was evaluated by examining the oxidation rate of formic acid aqueous solution upon UV irradiation in a pyrex cylindric reactor. HPLC analysis was used for detection of FA concentration. The obtained values of initial reaction rate for various FA initial concentrations were treated using Lagmuir-Hinshelwood model. The influence of TiO2 layer number (dip-coating method) and the value of TiO2 dot area (printing method) on the rate of FA photocatalytic degradation were tested.

Název v anglickém jazyce

Photocatalytic Degradation of Formic Acid on TiO2 Thin Layers

Popis výsledku anglicky

TiO2 thin films were deposited onto borosilicate glass plates by sol-gel technique using dip-coating and printing methods. Formic acid (FA) was choosen because of simple mechanism of degradation: it undergoes direct mineralisation to CO2 and H2O withoutthe formation of any stable intermediate species. Moreover, it also represents a possible final step in the photodegradation of more complex organic compounds. Photocatalytic activity was evaluated by examining the oxidation rate of formic acid aqueous solution upon UV irradiation in a pyrex cylindric reactor. HPLC analysis was used for detection of FA concentration. The obtained values of initial reaction rate for various FA initial concentrations were treated using Lagmuir-Hinshelwood model. The influence of TiO2 layer number (dip-coating method) and the value of TiO2 dot area (printing method) on the rate of FA photocatalytic degradation were tested.

Druh

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

CEP obor

CH - Jaderná a kvantová chemie, fotochemie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Chemické listy

ISSN

1213-7103

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

3

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—