Preparation and Photocatalytic Properties of h-BN/BP Heterostructure
The green and environment-friendly non-metallic hexagonal boron nitride/black phosphorus(h-BN/BP)heterostructure was synthesized by solvothermal method using red phosphorus and hexagonal boron nitride as raw materials.XRD,XPS,SEM,UV-Vis methods were used to analyze the composition,structure,morphology and optical property of the sample.The results showed that h-BN/BP heterostructure was stabilized by Van der Waals interactions,h-BN was uniformly loaded on BP.The successful synthesis of h-BN/BP effectively improved the stability of BP.The UV-vis spectrum indicated that the band gap decreased from 4.76 eV to 2.31 eV due to the expansion of the light response range from the UV to the infrared region.The removal rate of methylene blue by h-BN/BP photocatalyst was 92.35%,which was significantly higher than that of h-BN and BP monomers.The photocatalytic mechanism study showed that·OH and·O2-were the main active substance.
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