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A one-pot synthesis of AgBr/Ag 3 PO 4 composite photocatalysts

2021; Royal Society of Chemistry; Volume: 11; Issue: 17 Linguagem: Inglês

10.1039/d0ra10265b

2046-2069

Jiahang Su, Yitao Fan, Yan Yu, Tao Liu, Hongshuang Li, Zhenyu Li, Fujiao Song,

Copper-based nanomaterials and applications

In this study, an AgBr/Ag3PO4 (ABAP) photocatalyst has been prepared via a facile one-pot anion-exchange method. SEM, XRD, XPS and UV-Vis DRS characterization techniques are carried out to study the structural and physicochemical characteristics of the AgBr/Ag3PO4 composites. The ABAP photocatalyst exhibited outstanding photocatalytic capability for the photodegradation of rhodamine B (RhB) under visible light irradiation. The optimal ABAP-48% composite displayed the highest photocatalytic activity; a complete degradation was attained in 25 min under visible light irradiation. The excellent stability and reusability of ABAP catalysts were examined by five subsequent runs. A probable degradation mechanism of ABAP composites was carefully surveyed. Furthermore, radical trapping experiments confirmed that the ˙O2- radical was the main active species in the photodegradation reaction.