巢湖学院学报 ›› 2021, Vol. 23 ›› Issue (6): 93-97+105.doi: 10.12152/j.issn.1672-2868.2021.06.013

• 生命与环境科学 • 上一篇    下一篇

三元高阶Bi3.64Mo0.36O6.55纳米晶的合成及其可见光催化性能

童惠娟,钱雪慧,江婉,等:合肥学院 能源材料与化工学院   

  1. 合肥学院 能源材料与化工学院,安徽 合肥 230601
  • 收稿日期:2021-06-21 出版日期:2021-11-25 发布日期:2022-03-07
  • 作者简介:童惠娟(1980—),女,安徽合肥人,合肥学院能源材料与化工学院实验师,主要从事天然产物化学和环境化学工 程研究。
  • 基金资助:
    国家级大学生创新创业项目(项目编号:202011059120);安徽省级大学生创新创业项目(项目编号:S202011059031、 S202011059032)

Preparation of Ternary High-ordered Bi3.64Mo0.36O6.55 Nanocrystal and Its Visible Light Photocatalytic Property

TONG Hui-juan, QIAN Xue-hu, JIANG Wan, et al: School of Energy Materials and Chemical Engineering, Hefei University   

  1. School of Energy Materials and Chemical Engineering, Hefei University, Hefei Anhui 230601
  • Received:2021-06-21 Online:2021-11-25 Published:2022-03-07

摘要: 研究采用简捷化学浴和超声波辅助液相化学合成技术,制备出了2种非化学计量比的三元高阶Bi3.64Mo0.36O6.55纳米光催化剂通过X-射线衍射分析(XRD)、场发射扫描电子显微镜(FESEM)和固体紫外-可见光学吸收光谱(Uv-Vis DRS)对所制得的样品进行了物相、形貌和光学性质的测试与表征。结果表明,经超声波辅助反应得到的Bi3.64Mo0.36O6.55纳米晶(BMO-1)为纯立方相准立方体形的纳米颗粒,粒径约为30~50 nm。以有机染料亚甲基蓝(MB)为分子探针,以氙灯为可见光光源,光催化降解实验表明BMO-1的表观速率常数分别是化学浴法制得的纳米晶(BMO-2)和商业化纳米TiO2(P25)的1.8倍和15.5倍,体现了更优的可见光催化降解有机污染物性能。

关键词: 化学液相合成, 钼酸铋, 光催化剂, 可见光催化, 水处理

Abstract: The nonstoichiometric Bi3.64Mo0.36O6.55 photocatalysts were synthesized by a chemical bathing method and a wet ultrasonic-assisted chemical synthesis method respectively. The phase, morphology and optical property of asprepared products were investigated by X-ray diffraction(XRD), field emission scanning microscopy(FESEM) and optical absorption spectrum. The results showed that BMO-1 products obtained by sonochemistry reaction are single cubic crystal quasi-cubric nanoparticles with about 30~50 nm in diameter. The photocatalytic performance was evaluated by the degradation organic dye MB under the xenon lamp irradiation. Findings suggested that BMO-1 samples display the superior photocatalytic activity, of which the apparent reaction rate constant is 1.8 and 15.5 times that of BMO-2 and commercial nano TiO2 (P25) respectively.

Key words: chemical aqueous synthesis, bismuth molybdate, photocatalyst, visible light catalysis, water treatment

中图分类号: 

  • O611.62