Comparing the photocatalytic performance of GO/ZnO and g-C3N4/ZnO composites prepared using metallurgical waste as a source of zinc

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F23%3A10252449" target="_blank" >RIV/61989100:27350/23:10252449 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/23:10252449 RIV/61989100:27730/23:10252449

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1387700323003404?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1387700323003404?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.inoche.2023.110728" target="_blank" >10.1016/j.inoche.2023.110728</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparing the photocatalytic performance of GO/ZnO and g-C3N4/ZnO composites prepared using metallurgical waste as a source of zinc

Popis výsledku v původním jazyce

Acid leachate from steel sludge was used as a source of zinc oxide (ZnO-L) for the preparation of photo -catalytically active composites based on GO/ZnO-L and g-C3N4/ZnO-L (further denoted as gCN/ZnO-L). The prepared composites were characterized using UV-Vis spectrophotometry, SBET, XRD, FTIR and DRS. The photocatalytic efficiency was tested using the photodegradation of azo dye Acid Orange 7. The obtained results were confronted with model composites prepared from pure components. For GO/ZnO-L and gCN/ZnO-L sam-ples, the degradation efficiency was found to be 60.2 % and 51.5 %, respectively. While in the case of gCN/ZnO-L composites, it was purely photochemical degradation, in the case of GO/ZnO-L composites adsorption was significantly co-applied. For both composites containing ZnO-L, a higher photo-degradation activity against azo dye was found compared to the model composites. The reason is the modification of the electronic structure and the emergence of new quantum levels between the valence band and the conduction band of ZnO and gCN due to the presence of other metal oxides in ZnO-L, which leads to a more efficient separation of photo-generated charge carriers.

Název v anglickém jazyce

Comparing the photocatalytic performance of GO/ZnO and g-C3N4/ZnO composites prepared using metallurgical waste as a source of zinc

Popis výsledku anglicky

Acid leachate from steel sludge was used as a source of zinc oxide (ZnO-L) for the preparation of photo -catalytically active composites based on GO/ZnO-L and g-C3N4/ZnO-L (further denoted as gCN/ZnO-L). The prepared composites were characterized using UV-Vis spectrophotometry, SBET, XRD, FTIR and DRS. The photocatalytic efficiency was tested using the photodegradation of azo dye Acid Orange 7. The obtained results were confronted with model composites prepared from pure components. For GO/ZnO-L and gCN/ZnO-L sam-ples, the degradation efficiency was found to be 60.2 % and 51.5 %, respectively. While in the case of gCN/ZnO-L composites, it was purely photochemical degradation, in the case of GO/ZnO-L composites adsorption was significantly co-applied. For both composites containing ZnO-L, a higher photo-degradation activity against azo dye was found compared to the model composites. The reason is the modification of the electronic structure and the emergence of new quantum levels between the valence band and the conduction band of ZnO and gCN due to the presence of other metal oxides in ZnO-L, which leads to a more efficient separation of photo-generated charge carriers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

<a href="/cs/project/EF17_049%2F0008426" target="_blank" >EF17_049/0008426: Výzkum způsobů nakládání s odpady, materiály a vedlejšími produkty hutních a souvisejících provozů</a><br>

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

Inorganic Chemistry Communication

ISSN

1387-7003

e-ISSN

1879-0259

Svazek periodika

152

Číslo periodika v rámci svazku

June 2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

110728

Kód UT WoS článku

000984826300001

EID výsledku v databázi Scopus

2-s2.0-85153036163