Simple precipitation synthesis and solar light-driven photocatalytic degradation of Ag3PO4 floating photocatalysts

A highly efficient and stable photocatalyst, Ag3PO4, was prepared using a simple co-precipitation method at room temperature. The precursors used in this process were AgNO3 and K2HPO4. The resulting Ag3PO4 photocatalyst forms irregularly-shaped spheres with diameters ranging from 300 to 1 μm. The sh...

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Bibliographic Details
Published in:Materials research express 2024-09, Vol.11 (9), p.095502
Main Authors: Bui, Thi Thu Hien, Nguyen, Pham Tran Anh, Vu, Thanh Mai, Tran, Thi Huong Giang, Tran, Thi Kim Chi, Tran, Thi Thuong Huyen
Format: Article
Language:English
Subjects:
Ag3PO4
crystal
Decoloring
dyes degradation
floating photocatalyst
Light irradiation
Phosphates
Photocatalysis
Photocatalysts
Photodegradation
Polystyrene resins
Potassium phosphates
Rhodamine
Room temperature
Silica fume
Silver compounds
Silver nitrate
visible light
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Summary:A highly efficient and stable photocatalyst, Ag3PO4, was prepared using a simple co-precipitation method at room temperature. The precursors used in this process were AgNO3 and K2HPO4. The resulting Ag3PO4 photocatalyst forms irregularly-shaped spheres with diameters ranging from 300 to 1 μm. The shape of the Ag3PO4 photocatalyst slightly changes when different surfactants (PVA, PVP, PEG) are used. The powdered Ag3PO4 photocatalyst exhibits excellent visible light-driven photocatalytic performance. It is capable of decomposing rhodamine B (RhB) as a model pollutant in just 5 min under visible light irradiation. This performance is quite remarkable. Interestingly, Ag3PO4 floating composite sheets have been achieved using polystyrene (PS) and fumed silica Aerosil 200. After three cycles, the decolorization of RhB dyes remains at 87% with the 30% Ag3PO4@PS/Aerosil 200 sheet. This indicates that the Ag3PO4@PS/Aerosil 200 photocatalyst is highly reusable and stable.
ISSN:2053-1591
DOI:10.1088/2053-1591/ad719a