Hierarchical bismuth phosphate microspheres with high photocatalytic performance

作者：Pei, Lizhai^*; Wei, Tian; Lin, Nan; Yu, Haiyun

来源：International Journal of Materials Research, 2016, 107(5): 477-483.

DOI：10.3139/146.111364

• Hierarchical bismuth phosphate microspheres
• Hydrothermal synthesis
• Scanning electron microscopy
• Gentian violet
• Photocatalytic performance

Hierarchical bismuth phosphate microspheres have been prepared by a simple hydrothermal process with polyvinyl pyrrolidone. Scanning electron microscopy observations show that the hierarchical bismuth phosphate microspheres consist of nanosheets with a thickness of about 30 nm. The diameter of the microspheres is about 1 - 3 mu m. X-ray diffraction analysis shows that the microspheres are comprised of triclinic Bi23P4O44.5 phase. The formation of the hierarchical microspheres depends on polyvinyl pyrrolidone concentration, hydrothermal temperature and reaction time. Gentian violet acts as the pollutant model for investigating the photocatalytic activity of the hierarchical bismuth phosphate microspheres under ultraviolet visible light irradiation. Irradiation time, dosage of the hierarchical microspheres and initial gentian violet concentration on the photocatalytic efficiency are also discussed. The hierarchical bismuth phosphate microspheres show good photocatalytic performance for gentian violet removal in aqueous solution.

• 出版日期2016-5
• 单位安徽工业大学