TiO2/Bi4Ti3O12复合光阳极的制备及光电化学性能研究
Preparation and Photoelectrochemical Properties of TiO2/Bi4Ti3O12 Composite Photoanode
崔雯娜1
作者信息
- 1. 陕西国防工业职业技术学院,陕西 西安 710300
- 折叠
摘要
合成了钛酸铋/二氧化钛(TiO2/BTO)复合纳米棒阵列,并研究了其光电催化性能.通过水热法制备了TiO2纳米棒阵列,采用凝胶-溶胶法在TiO2纳米棒阵列表面复合Bi4Ti3O12(BTO)薄膜获得TiO2/BTO复合纳米棒阵列.结果表明,TiO2/BTO复合纳米棒阵列形貌均一、结晶良好.光电催化测试表明,由于BTO对可见光吸收的增加以及与TiO2间形成的半导体异质结,TiO2/BTO复合纳米棒阵列的光电化学性能均高于纯的TiO2纳米棒阵列,最优TiO2/BTO复合光阳极的光电流密度达0.6 mA·cm-2.
Abstract
TiO2/Bi4Ti3O12(TiO2/BTO)composite nanorod array were prepared and their photoelectrochemical performance were studied.TiO2 nanorod array were prepared by hydrothermal method,TiO2/BTO composite nanorod array were prepared by a sol-gel hydrothermal process of Bi4Ti3O12(BTO)film on TiO2 nanorod array surface.The result showed that the morphology of the TiO2/BTO composite nanorod array was uniform and the crystallization was good.Photoelectrochemical performance showed that,due to the enhanced visible light absorption and p-n junction between the TiO2 and BTO,TiO2/BTO composite nanorod array showed better photoelectrochemical performance than TiO2 nanorod array.The photocurrent of the optimum TiO2/BTO sample achieved 0.6 mA·cm-2.
关键词
钛酸铋/二氧化钛/纳米棒阵列/光电催化Key words
Bi4Ti3O12/TiO2/Nanorod arrays/Photoelectrochemical catalysis引用本文复制引用
基金项目
陕西国防工业职业技术学院科研项目(2023)(Gfy23-32)
陕西省教育厅科技处自然科学项目(21JK0508)
出版年
2024
NETL
NSTL
万方数据