Harnessing the synergistic potential of TiO2-CuSe composites for enhanced photocatalytic and antibacterial activities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F24%3AA2503ACE" target="_blank" >RIV/61988987:17310/24:A2503ACE - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra05194g" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra05194g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ra05194g" target="_blank" >10.1039/d4ra05194g</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Harnessing the synergistic potential of TiO2-CuSe composites for enhanced photocatalytic and antibacterial activities

Popis výsledku v původním jazyce

With growing environmental concerns, the removal of toxic industrial dyes from wastewater has become a critical global issue. In this study, TiO2-CuSe composites were synthesized using a cost-effective and simple chemical method to determine the optimal concentration of CuSe for the efficient degradation of methylene blue (MB) under visible light. The TiO2 samples exhibited a mix of rutile and anatase phases, while CuSe formed in a hexagonal phase. Both TiO2 and CuSe were observed to have agglomerated particles with indistinct boundaries. The optical bandgap shifted towards the visible region from 3.25 eV (pure TiO2) to 2.91 eV with increasing the amount of CuSe in the composites. The photocatalytic activity of TiO2, CuSe, and TiO2-CuSe composites was evaluated by monitoring MB degradation, with the composites outperforming the individual components under visible light. Notably, the TiO2-20% CuSe composite (AK-4) demonstrated superior efficiency, removing 98% of MB in just 70 minutes. The photocatalysts also exhibited enhanced antibacterial properties, effectively reducing E. coli colonies from 1.71 x 10(12) CFU mL(-1) (pure TiO2) to 1 x 10(10) CFU mL(-1) for the AK-4 composite. This study suggests that visible light-activated TiO2-CuSe composites could be effective for both water purification and bacterial infection control.

Název v anglickém jazyce

Harnessing the synergistic potential of TiO2-CuSe composites for enhanced photocatalytic and antibacterial activities

Popis výsledku anglicky

With growing environmental concerns, the removal of toxic industrial dyes from wastewater has become a critical global issue. In this study, TiO2-CuSe composites were synthesized using a cost-effective and simple chemical method to determine the optimal concentration of CuSe for the efficient degradation of methylene blue (MB) under visible light. The TiO2 samples exhibited a mix of rutile and anatase phases, while CuSe formed in a hexagonal phase. Both TiO2 and CuSe were observed to have agglomerated particles with indistinct boundaries. The optical bandgap shifted towards the visible region from 3.25 eV (pure TiO2) to 2.91 eV with increasing the amount of CuSe in the composites. The photocatalytic activity of TiO2, CuSe, and TiO2-CuSe composites was evaluated by monitoring MB degradation, with the composites outperforming the individual components under visible light. Notably, the TiO2-20% CuSe composite (AK-4) demonstrated superior efficiency, removing 98% of MB in just 70 minutes. The photocatalysts also exhibited enhanced antibacterial properties, effectively reducing E. coli colonies from 1.71 x 10(12) CFU mL(-1) (pure TiO2) to 1 x 10(10) CFU mL(-1) for the AK-4 composite. This study suggests that visible light-activated TiO2-CuSe composites could be effective for both water purification and bacterial infection control.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

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

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

—

Číslo periodika v rámci svazku

40

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

29636-29647

Kód UT WoS článku

001315175900001

EID výsledku v databázi Scopus

2-s2.0-85204552103