高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (9): 1484.

• 论文 • 上一篇    下一篇

电沉积二氧化钛纳米微粒膜的光电化学性能和表面形貌研究

罗瑾, 周静, 祖延兵, 林仲华   

  1. 厦门大学固体表面物理化学国家重点实验室, 化学系, 物理化学研究所, 厦门, 361005
  • 收稿日期:1997-08-07 出版日期:1998-09-24 发布日期:1998-09-24
  • 通讯作者: 罗瑾,男,35岁,博士,副教授.
  • 作者简介:罗瑾,男,35岁,博士,副教授.
  • 基金资助:

    国防科工委预研项目(批准号:96006)和国家自然科学基金(批准号:59605017)资助课题.

Studies on Photoelectrochemical Behavior and Surface Image of Electrodeposited Nanocrystalline TiO2 Films

LUO Jin, ZHOU Jing, ZU Yan-Bing, LIN Zhong-Hua   

  1. State Key Laboratory for Physical Chemistry of the Solid Surface, Institute of Physical Chemistry, Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1997-08-07 Online:1998-09-24 Published:1998-09-24

摘要: 采用光电流谱、透射光谱和扫描微探针显微镜技术对电沉积法制备的二氧化钛纳米微粒膜的光电化学性能和表面形貌进行了研究.结果表明,不同制备条件下的二氧化钛纳米微粒膜具有与紧密的半导体电极不同的光电化学性质,并探讨了其光电化学性能与表面形貌的关系.

关键词: 电沉积, 二氧化钛纳米微粒膜, 光电流, 扫描微探针显微镜

Abstract: The photoelectrochemical behavior and surface image of electrodeposited nanocrystalline TiO2 films prepared under different conditions were studied by using photocurrent spectroscopy, transparent spectroscopy and scanning probe microscopy. The particle sizes of the nanocrystalline TiO2 films electrodeposited from 0.05 mol/L TiCl 3+Na2CO3(pH=2.2) and from 0.05 mol/L TiCl 3+NaOH(pH=2.2) were about 50—100 nm. The photoelectrochemical behavior of the TiO2 films was related to the surface structures. The TiO2 film electrodeposited at 0.1 Vvs. SCEin 0.05 mol/L TiCl 3+NaOH(pH=2.2) was of better photoelectrochemical conversion efficiency. It was shown that the photoelectrochemical behavior of nanocrystalline TiO2 films was different from those of compact semiconductor electrodes.

Key words: Electrodeposition, Nanocrystalline TiO2 films, Photocurrent, Scanning probe microscope

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