广东工业大学学报 ›› 2005, Vol. 22 ›› Issue (3): 17-20.

• 综合研究 • 上一篇    下一篇

纳米二氧化钛在水中的环境行为

  

  1. 华南理工大学环境科学与工程学院; 华南理工大学环境科学与工程学院 广东广州510640; 广东广州510640;
  • 出版日期:2005-07-02 发布日期:2005-07-02
  • 基金资助:

    国家自然科学基金资助项目(20247003)

The Environmental Behavior of Nano-sized TiO2 in Water Source

  1. (College of Environment science And Engineering,South China University of Technology,Guangzhou 510640,China)
  • Online:2005-07-02 Published:2005-07-02

摘要: 从纳米TiO2颗粒的聚集以及对水体粘度和沉降性能的影响等方面研究纳米TiO2颗粒物在水中的环境行为,实验发现纳米颗粒物TiO2进入水体会发生快速团聚,而且颗粒物质量浓度越大,团聚越快.纳米颗粒物还会改变水体流动特性和沉降性能,这种改变受原水水温、pH值等因素的影响.结果表明纳米TiO2颗粒对低温、pH值中性的原水影响更大. 

关键词: 纳米二氧化钛; 水; 环境行为;

Abstract: The environmental behavior of nano-sized TiO2 in water source is studied in the accumulation of particles and the influence on viscosity and settling.The larger the particle concentration is,the faster accumulation happens.Nano-sized TiO2 added to water would change the flow and settling characteristics of water,which is affected by temperature and pH value.It is also shown that nano-sized TiO2 has more effect on low temperature and neutral pH water source.

Key words: nano-sized TiO2; water; environmental behavior;

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