Abstract
Prussian blue nanoparticles (PBNPs) have been synthesized by using β-cyclodextrin (β-CD) as a surfactant and ethyl alcohol as a green solvent. The products were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), X-ray photoelectron spectrometer (XPS) and Brunauer–Emmett–Teller (BET) to analyse the structure, morphology, surface elements, specific surface area and porosity, respectively. It was found that the specific surface area of PB-120 was 90.527 m2 g−1. When the as-prepared PBNPs were applied as heterogeneous photo-Fenton catalysts, they exhibit high catalytic efficiency and stability of degrading Rhodamine B (RhB) under visible light in neutral system. The catalytic degradation of 25 mg L−1 RhB by PB-120 only needed 15 min, while the high degradation rate (83%) of RhB after 4 cycles of degradation could be achieved. The as-prepared PBNPs may be employed as excellent catalysts to degrade organic pollution.
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