Immobilization of exfoliated g‐c3n4 for photocatalytical removal of organic pollutants from water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43923728" target="_blank" >RIV/60461373:22310/21:43923728 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22350/21:43923728

Výsledek na webu

<a href="https://www.mdpi.com/2073-4344/11/2/203/htm" target="_blank" >https://www.mdpi.com/2073-4344/11/2/203/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/catal11020203" target="_blank" >10.3390/catal11020203</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Immobilization of exfoliated g‐c3n4 for photocatalytical removal of organic pollutants from water

Popis výsledku v původním jazyce

Graphitic carbon nitride (g‐C3N4) was synthesized from melamine and exfoliated by thermal treatment. Exfoliated g‐C3N4 particles were immobilized by electrophoretic deposition from an ultrasonically treated ethanolic suspension aged up to 12 weeks. During the aging of the suspension, the separation of particles bigger than 10 μm was observed. The separated stable part of the suspension contained particles with a relatively uniform size distribution, enabling the fabrication of g‐C3N4 films that were stable in a stirred aqueous solution. Such stable immobilized particles of exfoliated g‐C3N4 are reported for the first time. The photocatalytic activity of such layers was evaluated using aqueous solutions of Acid Orange 7 (AO7) and 4‐chlorophenol (4‐CP). The photocatalytic decomposition of AO7 was faster in comparison with the decomposition of 4‐CP. Mineralization was observed in the case of AO7, but not in the case of 4‐CP, where the decrease of 4‐CP concentration is due to 4‐CP polymerization and the formation of a dimer, C12H8Cl2O2. This indicates that the use of g‐C3N4 as a photocatalyst for oxidative degradation of organic compounds in water is limited. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Název v anglickém jazyce

Immobilization of exfoliated g‐c3n4 for photocatalytical removal of organic pollutants from water

Popis výsledku anglicky

Graphitic carbon nitride (g‐C3N4) was synthesized from melamine and exfoliated by thermal treatment. Exfoliated g‐C3N4 particles were immobilized by electrophoretic deposition from an ultrasonically treated ethanolic suspension aged up to 12 weeks. During the aging of the suspension, the separation of particles bigger than 10 μm was observed. The separated stable part of the suspension contained particles with a relatively uniform size distribution, enabling the fabrication of g‐C3N4 films that were stable in a stirred aqueous solution. Such stable immobilized particles of exfoliated g‐C3N4 are reported for the first time. The photocatalytic activity of such layers was evaluated using aqueous solutions of Acid Orange 7 (AO7) and 4‐chlorophenol (4‐CP). The photocatalytic decomposition of AO7 was faster in comparison with the decomposition of 4‐CP. Mineralization was observed in the case of AO7, but not in the case of 4‐CP, where the decrease of 4‐CP concentration is due to 4‐CP polymerization and the formation of a dimer, C12H8Cl2O2. This indicates that the use of g‐C3N4 as a photocatalyst for oxidative degradation of organic compounds in water is limited. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA19-15199S" target="_blank" >GA19-15199S: Nanostruktury grafitického nitridu uhlíku dopovaného nekovovými prvky pro fotokatalytické reakce</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Catalysts

ISSN

2073-4344

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000622284100001

EID výsledku v databázi Scopus

2-s2.0-85100534933