Metal-free hybrid nanocomposites of graphitic carbon nitride and char: Synthesis, characterisation and photocatalysis under visible irradiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F24%3AA25037UJ" target="_blank" >RIV/61988987:17310/24:A25037UJ - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/23:10253142 RIV/61989100:27710/23:10253142

Výsledek na webu

<a href="https://linkinghub.elsevier.com/retrieve/pii/S1876107023001931" target="_blank" >https://linkinghub.elsevier.com/retrieve/pii/S1876107023001931</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtice.2023.104864" target="_blank" >10.1016/j.jtice.2023.104864</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Metal-free hybrid nanocomposites of graphitic carbon nitride and char: Synthesis, characterisation and photocatalysis under visible irradiation

Popis výsledku v původním jazyce

The hybrid nanocomposites of graphitic carbon nitride (g-C 3 N 4 ) and char were synthesised from melamine and hydroxyethyl cellulose/glucose to obtain metal -free photocatalysts active under visible irradiation. The nanocomposites were tested for the degradation of phenol and ofloxacin. Methods: The nanocomposites were characterized by elemental and thermal analysis. Their electronic properties were studied by UV - Vis and photoluminescence spectroscopy. Texture and morphology were studied by physisorption of nitrogen, X-ray diffraction, infrared spectroscopy, X-ray photoelectron spectroscopy, and by transmission electron microscopy. The photocatalytic experiments were performed under the LED irradiation of 420 nm. Significant findings: Hydroxyethyl cellulose and glucose formed char which was incorporated in the g-C 3 N 4 structure. The char acted as an electron collector enabling the separation of photoinduced electrons and holes. In this way, the photocatalytic activity of g-C 3 N 4 increased and 96% of ofloxacin was degraded during after 120 min. In addition, in this work the total combustion of graphitic carbon nitride up to 800 o C was investigated for the first time.

Název v anglickém jazyce

Metal-free hybrid nanocomposites of graphitic carbon nitride and char: Synthesis, characterisation and photocatalysis under visible irradiation

Popis výsledku anglicky

The hybrid nanocomposites of graphitic carbon nitride (g-C 3 N 4 ) and char were synthesised from melamine and hydroxyethyl cellulose/glucose to obtain metal -free photocatalysts active under visible irradiation. The nanocomposites were tested for the degradation of phenol and ofloxacin. Methods: The nanocomposites were characterized by elemental and thermal analysis. Their electronic properties were studied by UV - Vis and photoluminescence spectroscopy. Texture and morphology were studied by physisorption of nitrogen, X-ray diffraction, infrared spectroscopy, X-ray photoelectron spectroscopy, and by transmission electron microscopy. The photocatalytic experiments were performed under the LED irradiation of 420 nm. Significant findings: Hydroxyethyl cellulose and glucose formed char which was incorporated in the g-C 3 N 4 structure. The char acted as an electron collector enabling the separation of photoinduced electrons and holes. In this way, the photocatalytic activity of g-C 3 N 4 increased and 96% of ofloxacin was degraded during after 120 min. In addition, in this work the total combustion of graphitic carbon nitride up to 800 o C was investigated for the first time.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS

ISSN

1876-1070

e-ISSN

1876-1089

Svazek periodika

—

Číslo periodika v rámci svazku

May 2024

Stát vydavatele periodika

TW - Čínská republika (Tchaj-wan)

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

001223224800001

EID výsledku v databázi Scopus

2-s2.0-85152713987