Graphitic carbon nitride/xylene soot metal-free nanocomposites for photocatalytic degradation of organic compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F23%3A00581422" target="_blank" >RIV/67985858:_____/23:00581422 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/23:10253123 RIV/61989100:27710/23:10253123 RIV/61989100:27730/23:10253123

Výsledek na webu

<a href="https://hdl.handle.net/11104/0349674" target="_blank" >https://hdl.handle.net/11104/0349674</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.diamond.2023.110434" target="_blank" >10.1016/j.diamond.2023.110434</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Graphitic carbon nitride/xylene soot metal-free nanocomposites for photocatalytic degradation of organic compounds

Popis výsledku v původním jazyce

Graphitic carbon nitride and soot (g-C3N4/soot) metal-free nanocomposites were synthesized by a simple one-pot thermal synthesis from mixtures of dicyandiamide with different volumes of xylene. The soot nanoparticles of 17.7 +/- 1.7 nm in size were observed on the g-C3N4 surface.The band gap energies of the synthesized nanocomposites decreased from 2.65 eV to 2.53 eV with the increasing content of soot nanoparticles. The photocatalytic activity of the g-C3N4/soot nanocomposites to degrade phenol, ofloxacin, and ampicillin under the LED irradiation of 420 nm was investigated. Time-resolved photoluminescence measurements, electrochemical impedance spectroscopy, and trapping experiments indi-cated that photoinduced electrons were accumulated in the soot particles, reacted with oxygen forming superoxide radicals, which decomposed the organic compounds. The degradation efficiency decreased in the sequence ofloxacin > ampicillin > phenol. The g-C3N4/soot nanocomposites were investigated for the photocatalytic degradation of organic compounds for the first time.

Název v anglickém jazyce

Graphitic carbon nitride/xylene soot metal-free nanocomposites for photocatalytic degradation of organic compounds

Popis výsledku anglicky

Graphitic carbon nitride and soot (g-C3N4/soot) metal-free nanocomposites were synthesized by a simple one-pot thermal synthesis from mixtures of dicyandiamide with different volumes of xylene. The soot nanoparticles of 17.7 +/- 1.7 nm in size were observed on the g-C3N4 surface.The band gap energies of the synthesized nanocomposites decreased from 2.65 eV to 2.53 eV with the increasing content of soot nanoparticles. The photocatalytic activity of the g-C3N4/soot nanocomposites to degrade phenol, ofloxacin, and ampicillin under the LED irradiation of 420 nm was investigated. Time-resolved photoluminescence measurements, electrochemical impedance spectroscopy, and trapping experiments indi-cated that photoinduced electrons were accumulated in the soot particles, reacted with oxygen forming superoxide radicals, which decomposed the organic compounds. The degradation efficiency decreased in the sequence ofloxacin > ampicillin > phenol. The g-C3N4/soot nanocomposites were investigated for the photocatalytic degradation of organic compounds for the first time.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

1879-0062

Svazek periodika

139

Číslo periodika v rámci svazku

NOV 2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

110434

Kód UT WoS článku

001084847900001

EID výsledku v databázi Scopus

2-s2.0-85171625748