高等学校化学学报

高等学校化学学报

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Na2Ta2O6光催化剂的制备与性能研究

孙超, 黄浪欢, 刘应亮   

  1. 暨南大学化学系, 广州 510632
  • 收稿日期:2005-09-21 修回日期:1900-01-01 出版日期:2006-09-10 发布日期:2006-09-10
  • 通讯作者: 刘应亮

Preparation and Performance of Na2Ta2O6 Photocatalyst

SUN Chao, HUANG Lang-Huan, LIU Ying-Liang
   

  1. Department of Chemistry, Jinan University, Guangzhou 510632, China
  • Received:2005-09-21 Revised:1900-01-01 Online:2006-09-10 Published:2006-09-10
  • Contact: LIU Ying-Liang

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摘要： 采用固相反应与水热法相结合制得了钽酸盐光催化剂. 对其在紫外光区降解刚果红溶液的行为进行了研究. 实验结果表明, 其具有光催化活性.

关键词: 钽酸盐, 光催化剂, 制备

Abstract:

Na2Ta2O6 photocatalyst was prepared by a combination of solid-state reaction with hydrothermal approach. The samples were characterized by XRD, SEM, FT IR, DRS and BET. Powder X-ray diffraction data revealed that it had well crystallized, belongs to cubic structure and pure phase. SEM images showed that the photocatalyst were clava with floccule in the middle of it. The band gap of Na2Ta2O6 was estimated to be 4.6 eV from the UV-Vis diffuse reflectance spectra. Under UV-light irradiation, it showed a photocatalytic activity for degradation of Congo Red solution.

Key words: Tantalate, Photocatalyst, Preparation

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