Upgrading of g-C3N4 semiconductor by a Nitrogen-doped carbon material: A photocatalytic degradation application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927947" target="_blank" >RIV/60461373:22310/23:43927947 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/23:43927947

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2213343723001203?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2213343723001203?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2023.109381" target="_blank" >10.1016/j.jece.2023.109381</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Upgrading of g-C3N4 semiconductor by a Nitrogen-doped carbon material: A photocatalytic degradation application

Popis výsledku v původním jazyce

The synthesis of a cheap, nonmetallic and active photocatalyst is the target of this study. Several Carbon loadings (0.2, 0.5 and 1 wt%) were incorporated into the graphitic carbon nitride (g-C3N4) semiconductor by a simple wet impregnation method. Temperature treatment was used for composite photocatalyst activation. The catalysts and their precursors were characterized by N2 sorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. The sample composed of 0.5 wt% N-Carbon/g-C3N4 treated 2 h at 500 degrees C revealed the best performance by showing the highest degradation efficiency of methylene blue (MB) (90% in 3 h using solar light simulator). The optimal amount of catalyst in the medium was determined to be 1 g/L. The high activity of the treated 0.5 wt% NCarbon/g-C3N4 catalyst was ascribed to an improvement in the electrochemical properties of the bulk g-C3N4 as a result of the inclusion of nitrogen-doped carbon in its core structure. The intensification of conductivity and the improvement in the electrochemical properties was explained by the formation of carbon-like graphitic structure doped with pyridinic and pyrrolic nitrogen groups under heat treatment. The high activity, stability, low cost and non-toxicity of this material prove the high potential of this technology for water purification and other related fields.

Název v anglickém jazyce

Upgrading of g-C3N4 semiconductor by a Nitrogen-doped carbon material: A photocatalytic degradation application

Popis výsledku anglicky

The synthesis of a cheap, nonmetallic and active photocatalyst is the target of this study. Several Carbon loadings (0.2, 0.5 and 1 wt%) were incorporated into the graphitic carbon nitride (g-C3N4) semiconductor by a simple wet impregnation method. Temperature treatment was used for composite photocatalyst activation. The catalysts and their precursors were characterized by N2 sorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. The sample composed of 0.5 wt% N-Carbon/g-C3N4 treated 2 h at 500 degrees C revealed the best performance by showing the highest degradation efficiency of methylene blue (MB) (90% in 3 h using solar light simulator). The optimal amount of catalyst in the medium was determined to be 1 g/L. The high activity of the treated 0.5 wt% NCarbon/g-C3N4 catalyst was ascribed to an improvement in the electrochemical properties of the bulk g-C3N4 as a result of the inclusion of nitrogen-doped carbon in its core structure. The intensification of conductivity and the improvement in the electrochemical properties was explained by the formation of carbon-like graphitic structure doped with pyridinic and pyrrolic nitrogen groups under heat treatment. The high activity, stability, low cost and non-toxicity of this material prove the high potential of this technology for water purification and other related fields.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

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

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Environmental Chemical Engineering

ISSN

2213-2929

e-ISSN

2213-3437

Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

—

Kód UT WoS článku

000999130200001

EID výsledku v databázi Scopus

2-s2.0-85148484960