Design and Performance of Novel Self-Cleaning g-C3N4/PMMA/PUR Membranes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F20%3A00524891" target="_blank" >RIV/61388980:_____/20:00524891 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27640/20:10244686 RIV/61989100:27740/20:10244686

Result on the web

<a href="http://hdl.handle.net/11104/0309124" target="_blank" >http://hdl.handle.net/11104/0309124</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym12040850" target="_blank" >10.3390/polym12040850</a>

Result language

angličtina

Original language name

Design and Performance of Novel Self-Cleaning g-C3N4/PMMA/PUR Membranes

Original language description

In the majority of photocatalytic applications, the photocatalyst is dispersed as a suspension of nanoparticles. The suspension provides a higher surface for the photocatalytic reaction in respect to immobilized photocatalysts. However, this implies that recovery of the particles by filtration or centrifugation is needed to collect and regenerate the photocatalyst. This complicates the regeneration process and, at the same time, leads to material loss and potential toxicity. In this work, a new nanofibrous membrane, g-C3N4/PMMA/PUR, was prepared by the fixation of exfoliated g-C3N4 to polyurethane nanofibers using thin layers of poly(methyl methacrylate) (PMMA). The optimal amount of PMMA was determined by measuring the adsorption and photocatalytic properties of g-C3N4/PMMA/PUR membranes (with a different PMMA content) in an aqueous solution of methylene blue. It was found that the prepared membranes were able to effectively adsorb and decompose methylene blue. On top of that, the membranes evinced a self-cleaning behavior, showing no coloration on their surfaces after contact with methylene blue, unlike in the case of unmodified fabric. After further treatment with H2O2, no decrease in photocatalytic activity was observed, indicating that the prepared membrane can also be easily regenerated. This study promises possibilities for the production of photocatalytic membranes and fabrics for both chemical and biological contaminant control.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

850

UT code for WoS article

000535587700120

EID of the result in the Scopus database

2-s2.0-85086639120