纳米二氧化钛在水中的环境行为

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

纳米二氧化钛在水中的环境行为

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

(College of Environment science And Engineering,South China University of Technology,Guangzhou 510640,China)

Online:2005-07-02 Published:2005-07-02

摘要/Abstract

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；

袁笑一；周勤； . 纳米二氧化钛在水中的环境行为[J]. 广东工业大学学报, 2005, 22(3): 17-20.

YUAN Xiao-yi,ZHOU Qin . The Environmental Behavior of Nano-sized TiO₂ in Water Source[J]. Journal of Guangdong University of Technology, 2005, 22(3): 17-20.

参考文献

[1] 樊彩梅,孙彦平. 纳米TiO2对水中腐殖酸的吸附及光催化降解[J]. 应用化学. 2001(11)

[2] 沈耀良,王惠民. 纳米材料与TiO2光催化废水处理技术[J]. 江苏环境科技. 2000(03)

[3] 祖庸,李晓娥,屈晓光. 纳米二氧化钛光催化性能与应用[J]. 钛工业进展. 1999(02)

[1] Bekb let Miray,zk semen,G lhan.A preliminary investigation on the photocatalytic degradation of a model humic acid. Water Science and Technology . 1996

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