Ba<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> Photocatalyst for Efficient Photocatalytic Application
GLOBAL CHALLENGES, vol.8, no.1, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 8 Issue: 1
- Publication Date: 2024
- Doi Number: 10.1002/gch2.202300257
- Journal Name: GLOBAL CHALLENGES
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Kocaeli University Affiliated: No
Abstract
Barium phosphate (Ba-3(PO4)(2)) is a class of material that has attracted significant attention thanks to its chemical stability and versatility. However, the use of Ba-3(PO4)(2) as a photocatalyst is scarcely reported, and its use as a photocatalyst has yet to be reported. Herein, Ba-3(PO4)(2) nanoflakes synthesis is optimized using sol-gel and hydrothermal methods. The as-prepared Ba-3(PO4)(2) powders are investigated using physicochemical characterizations, including XRD, SEM, EDX, FTIR, DRS, J-t, LSV, Mott-Schottky, and EIS. In addition, DFT calculations are performed to investigate the band structure. The oxidation capability of the photocatalysts is investigated depending on the synthesis method using rhodamine B (RhB) as a pollutant model. Both Ba-3(PO4)(2) samples prepared by the sol-gel and hydrothermal methods display high RhB photodegradation of 79% and 68%, respectively. The Ba-3(PO4)(2) obtained using the sol-gel process exhibits much higher stability under light excitation after four regeneration cycles. The photocatalytic oxidation mechanism is proposed based on the active species trapping experiments where O-2(center dot-) is the most reactive species. The finding shows the promising potential of Ba-3(PO4)(2) photocatalysts and opens the door for further investigation and application in various photocatalytic applications.