Deposition of Sorption and Photocatalytic Material on Nanofibers and Fabric by Controlled Sublimation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F18%3A10240055" target="_blank" >RIV/61989100:27350/18:10240055 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/18:10240055 RIV/61989100:27710/18:10240055 RIV/61989100:27740/18:10240055

Výsledek na webu

<a href="https://www.scientific.net/MSF.936.63" target="_blank" >https://www.scientific.net/MSF.936.63</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.936.63" target="_blank" >10.4028/www.scientific.net/MSF.936.63</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Deposition of Sorption and Photocatalytic Material on Nanofibers and Fabric by Controlled Sublimation

Popis výsledku v původním jazyce

This paper presents a new method of deposition of photocatalytic sorbent on nanofibers. This deposition uses controlled sublimation of water molecules from the vacuum-gel that is patent-protected. Silica gel nanostructures are precipitated by heterogeneous nucleation on the surface of nanofibres from an aqueous suspension of silicate nanoparticles and semiconductor carbon nitride (C3N4 ) or graphene nanosheets. After rapid solidification of gel (at least 104 K/s), the nanofibers coated with the silica gel dispersion C3N4, or graphene are subjected to controlled sublimation at - 41 oC. This technology produced a nanofibrous material, which is stably coated with a highly porous silicate sorbent including dispersed photocatalytic nanoparticles. This textile material has a total sorption surface area of the order of hundreds m2/g. Unlike conventional sorbents, it is capable due to dispersed photocatalytic nanoparticles to regenerate sorption capacity by the absorption of visible light. The results of the preliminary research confirmed the high application potential of new controlled sublimation technology in the production of regenerable photocatalytic sorption fabrics.

Název v anglickém jazyce

Deposition of Sorption and Photocatalytic Material on Nanofibers and Fabric by Controlled Sublimation

Popis výsledku anglicky

This paper presents a new method of deposition of photocatalytic sorbent on nanofibers. This deposition uses controlled sublimation of water molecules from the vacuum-gel that is patent-protected. Silica gel nanostructures are precipitated by heterogeneous nucleation on the surface of nanofibres from an aqueous suspension of silicate nanoparticles and semiconductor carbon nitride (C3N4 ) or graphene nanosheets. After rapid solidification of gel (at least 104 K/s), the nanofibers coated with the silica gel dispersion C3N4, or graphene are subjected to controlled sublimation at - 41 oC. This technology produced a nanofibrous material, which is stably coated with a highly porous silicate sorbent including dispersed photocatalytic nanoparticles. This textile material has a total sorption surface area of the order of hundreds m2/g. Unlike conventional sorbents, it is capable due to dispersed photocatalytic nanoparticles to regenerate sorption capacity by the absorption of visible light. The results of the preliminary research confirmed the high application potential of new controlled sublimation technology in the production of regenerable photocatalytic sorption fabrics.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

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

Materials Science Forum. Volume 936

ISSN

0255-5476

e-ISSN

—

Svazek periodika

936

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

63-67

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85059939524