Photocatalytic abatement of NOx pollutants in the air using commercial functional coating with porous morphology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00476028" target="_blank" >RIV/61388955:_____/17:00476028 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.apcatb.2017.06.009" target="_blank" >http://dx.doi.org/10.1016/j.apcatb.2017.06.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcatb.2017.06.009" target="_blank" >10.1016/j.apcatb.2017.06.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic abatement of NOx pollutants in the air using commercial functional coating with porous morphology

Popis výsledku v původním jazyce

Titanium dioxide is the most important photocatalyst used for purifying applications. The purpose of this study was to investigate the photocatalytic activity of the commercial product Protectam FN2, containing Evonik P25 titanium dioxide nanopowder, with regard to NO and NO2 abatement. Photocatalytic experiments on the photocatalytic coatings on concrete and plaster substrates were carried out in two types of flow reactors, namely one with laminar flow and another with ideally-mixed flow, under „real world conditions“ of temperature, relative humidity, irradiation intensity and pollutant concentrations. The results showed that the photocatalytic process significantly reduced the concentration of both nitrogen oxides in the air. The reaction rate, i.e., the decrease in the concentration of NOx achieved in the steady-state for the inlet concentration of NO and NO2 of 0.1 ppmv, which corresponds to highly polluted urban air, was up to 75 and 50 mu mol m(-2) h(-1), respectively, at the flow rate of 3000 cm(3) min(-1) and relative humidity of 50%. Further, even two years after their application to the surface of concrete walls along a busy thoroughfare, the photocatalytic coating maintained high effectivity. (C) 2017 The Authors. Published by Elsevier B.V.

Název v anglickém jazyce

Photocatalytic abatement of NOx pollutants in the air using commercial functional coating with porous morphology

Popis výsledku anglicky

Titanium dioxide is the most important photocatalyst used for purifying applications. The purpose of this study was to investigate the photocatalytic activity of the commercial product Protectam FN2, containing Evonik P25 titanium dioxide nanopowder, with regard to NO and NO2 abatement. Photocatalytic experiments on the photocatalytic coatings on concrete and plaster substrates were carried out in two types of flow reactors, namely one with laminar flow and another with ideally-mixed flow, under „real world conditions“ of temperature, relative humidity, irradiation intensity and pollutant concentrations. The results showed that the photocatalytic process significantly reduced the concentration of both nitrogen oxides in the air. The reaction rate, i.e., the decrease in the concentration of NOx achieved in the steady-state for the inlet concentration of NO and NO2 of 0.1 ppmv, which corresponds to highly polluted urban air, was up to 75 and 50 mu mol m(-2) h(-1), respectively, at the flow rate of 3000 cm(3) min(-1) and relative humidity of 50%. Further, even two years after their application to the surface of concrete walls along a busy thoroughfare, the photocatalytic coating maintained high effectivity. (C) 2017 The Authors. Published by Elsevier B.V.

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

2017

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

217

Číslo periodika v rámci svazku

NOV 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

466-476

Kód UT WoS článku

000405158000047

EID výsledku v databázi Scopus

2-s2.0-85020788374