Abstract
In this work, a unique platinum-loaded iron vanadate (Pt/FeVO4) composite for escalating the photocatalytic performance via the facile sonicated assisted hydrothermal method was synthesized. Morphological results revealed that the FeVO4 and well-dispersed Pt/FeVO4 particle is in the range of 150–200 nm size, which developed transportation of the photogenerated electrons into FeVO4, resulting in efficient separation of the photogenerated carriers in coupled Pt/FeVO4 nanocomposite heterostructure. The multi-characterizations results indicate an excellent adsorption ability and enhanced surface plasmon resonance (SPR) of Pt/FeVO4 composites as these composites are strongly associated with Pt loading. The induced impedance spectroscopy and photoluminance results demonstrated that Pt enhances separation efficiency as well as transferring rates for photogenerated charges. The ESR data suggests that the reactive oxygen species (OH•) was the most reactive specie agent with h+, •O2¯ having a minor role in methylene blue (MB) degradation.
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