Gas-phase flow-through photocatalysis using wirelessly anodized WO3 nanoporous layers on Tungsten 3D meshes produced by extrusion-based additive manufacturing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F25%3A39923354" target="_blank" >RIV/00216275:25310/25:39923354 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43932874 RIV/00216305:26620/26:0199460

Výsledek na webu

<a href="https://doi.org/10.1016/j.ceja.2025.100861" target="_blank" >https://doi.org/10.1016/j.ceja.2025.100861</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceja.2025.100861" target="_blank" >10.1016/j.ceja.2025.100861</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gas-phase flow-through photocatalysis using wirelessly anodized WO3 nanoporous layers on Tungsten 3D meshes produced by extrusion-based additive manufacturing

Popis výsledku v původním jazyce

Herein, hierarchically porous 3D W meshes were fabricated via extrusion-based additive manufacturing, using commercially pure W powder as feedstock. These mechanically robust structures exhibit high porosity and an effective surface area of approximately 60 cm2, making them highly promising for gas-phase photocatalysis. Wireless anodization via bipolar electrochemistry was successfully applied to form nanoporous WO3 layers on the 3D meshes, for the first time. These meshes were then employed for photocatalytic acetaldehyde degradation in a flow-through reactor designed according to ISO standards. Compared with thermally grown WO3 layers on identical 3D W meshes, the nanoporous WO3 layers showed superior performance due to their larger surface area, achieving -7% acetaldehyde conversion and a mineralization rate of -93%, indicating that nearly all removed acetaldehyde was fully mineralized. These findings highlight the potential of anodized 3D W meshes for innovative applications in flow-through photocatalytic reactors.

Název v anglickém jazyce

Gas-phase flow-through photocatalysis using wirelessly anodized WO3 nanoporous layers on Tungsten 3D meshes produced by extrusion-based additive manufacturing

Popis výsledku anglicky

Herein, hierarchically porous 3D W meshes were fabricated via extrusion-based additive manufacturing, using commercially pure W powder as feedstock. These mechanically robust structures exhibit high porosity and an effective surface area of approximately 60 cm2, making them highly promising for gas-phase photocatalysis. Wireless anodization via bipolar electrochemistry was successfully applied to form nanoporous WO3 layers on the 3D meshes, for the first time. These meshes were then employed for photocatalytic acetaldehyde degradation in a flow-through reactor designed according to ISO standards. Compared with thermally grown WO3 layers on identical 3D W meshes, the nanoporous WO3 layers showed superior performance due to their larger surface area, achieving -7% acetaldehyde conversion and a mineralization rate of -93%, indicating that nearly all removed acetaldehyde was fully mineralized. These findings highlight the potential of anodized 3D W meshes for innovative applications in flow-through photocatalytic reactors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GA23-06793S" target="_blank" >GA23-06793S: Inženýring technologie bipolární elektrochemie pro další generaci TiO2 nanotrubicových vrstev</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal Advances

ISSN

2666-8211

e-ISSN

2666-8211

Svazek periodika

24

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

100861

Kód UT WoS článku

001592365700002

EID výsledku v databázi Scopus

2-s2.0-105015805035