Journal
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
Volume 18, Issue 5, Pages 939-945Publisher
UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS
DOI: 10.1590/1516-1439.346614
Keywords
Ag3PO/Ag; chemical synthesis; photocatalysis; visible light
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Funding
- Natural Science Foundation of Anhui Provincial Education Depart-ment [KJ2015A085]
- Natural Science Foundation of Anhui Province [1308085QE73]
- National Natural Science Foundation of China [51302002, 51201002]
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A highly efficient photocatalyst Ag3O4/Ag was prepared by a one-step low temperature chemical bath method. The reflectance spectra (DRS) indicated Ag3PO4/Ag had strong absorption in visible light region. The synthesized Ag3PO4/Ag photocatalyst was used as the efficient photocatalysts for the photocatalytic degradation of Rhodamine B (RhB) under visible-light illumination which showed almost complete degradation (similar to 98%) of RhB dye in 90 min. The negative surface of Ag3PO4/Ag photocatalyst also promoted the degradation of a cationic dye like methylene bule (MB; 78% in 90min), while the performance against an anionic dye like methyl orange was poorer (MO; 40% in 90 min). Compared to the pure Ag3PO4 photocatalyst, the Ag3PO4/Ag photocatalyst showed the enhanced visible light photocatalytic informance. The excellent photocatalytic performance is mainly ascribed to the surface plasmon resonance of Ag nanoparticles and a large negative charge of PO43- ions.
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