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热带海洋学报 ›› 2010, Vol. 29 ›› Issue (4): 102-106.doi: 10.11978/j.issn.1009-5470.2010.04.102cstr: 32234.14.j.issn.1009-5470.2010.04.102

• 海洋生物学 • 上一篇    下一篇

载Fe3+纳米TiO2薄膜去除球形棕囊藻赤潮生物的研究

尹平河, 黄凤, 赵玲   

  1. 暨南大学生命科学技术学院, 广东 广州 510632
  • 收稿日期:2008-08-25 修回日期:2008-11-10 出版日期:2010-07-31 发布日期:2010-07-29
  • 作者简介:尹平河(1959—), 男, 山西省兴县人, 教授, 从事环境污染物分析与赤潮的治理研究。
  • 基金资助:

    国家自然科学基金(40673062); 广东省自然科学基金重点研究项目(04105835)。

Study on visible photocatalysis removal of Phaeocystis globosa by use of Fe3+-doped Nano-TiO2 film

YIN Ping-he, HUANG Feng, ZHAO Ling   

  1. College of Life Science and Technology, Jinan University, Guangzhou 510632, China
  • Received:2008-08-25 Revised:2008-11-10 Online:2010-07-31 Published:2010-07-29
  • About author:尹平河(1959—), 男, 山西省兴县人, 教授, 从事环境污染物分析与赤潮的治理研究。
  • Supported by:

    国家自然科学基金(40673062); 广东省自然科学基金重点研究项目(04105835)。

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被引次数

5

摘要：

球形棕囊藻Phaeocystis globosa是近年来在我国沿海频发的有毒有害赤潮藻。为了寻找一种简单、有效和安全的去除赤潮藻的方法, 探讨了纳米TiO2薄膜以及载Fe3+纳米TiO2薄膜在可见光条件下对球形棕囊藻的除藻效果。结果表明, 载Fe3+纳米TiO2除藻效果好于未载Fe3+的纳米TiO2, 藻液中投加载Fe3+纳米TiO2薄膜的量为20mg·L-1时, 可见光照射48h后, 藻液中细胞密度由4.08×104cell·mL-1降低到0.01×104cell·mL-1, 叶绿素a浓度由0.43mg·L-1降低到0.001mg·L-1, 除藻率达到99.7%, 除藻速率符合准一级反应动力学方程。

关键词: Fe3+, TiO2薄膜, 可见光, 球形棕囊藻Phaeocystis globosa, 赤潮

Abstract:

Phaeocystis globosa is harmful algae species, which booms along the coast of China frequently during recent years. In order to find a simple, effective and safe method to remove P. globosa, research was carried out using nano-TiO2 or Fe3+-droped nano-TiO2 thin film to remove P. globosa under visible light. The authors find that Fe3+-droped nano-TiO2 is more effective in removing P. globosa than nano-TiO2. After using 20mg·L-1 Fe3+-droped nano-TiO2 for 48 h visible light treatment, the algal density reduced to 0.01×104cell·mL-1 from 4.08×104cell·mL-1, and the consistency of Chl-a reduced to 0.001mg·L-1 from 0.43mg·L-1, namely more than 99.7% cells were removed. The dynamics of algal removal follows the first order reaction.

Key words: Fe3+, TiO2 thin film, visible light, Phaeocystis globosa