摘要
采用泡沫分离技术,以十六烷基氯化吡啶(RNCl)做表面活性剂,分别研究了表面活性剂的浓度、pH、离子强度和气流速度对纳米二氧化钛分离率的影响,得到其适宜的分离条件如下:RNCl的质量浓度为0.35g/L,pH为10.2,气流速度为83mL/min,在此条件下纳米二氧化钛的分离率最大为92.97%.
Nanosized titanium dioxide was separated by foam fractionation,with the cetyl pyridinium chloride as the surfactant.The effect of the initial concentration of cetylpyridinium chloridemonohydrate,pH of titanium dioxide suspension solution,ion intensity and air flow rate on the separation rate of nanosized titanium dioxide in water was studied.The optimal conditions were determined by the experiment of sewage treatment and they are as follows：the mass concentration of cationic surfactant is 0.35 g/L,pH value of 10.2,flow rate of 83 mL/min,under this condition,the maximum separation efficency of TiO2 particles reaches 92.97%.
出处
《陕西科技大学学报（自然科学版）》
2011年第4期1-4,14,共5页
Journal of Shaanxi University of Science & Technology
关键词
二氧化钛
泡沫分离
表面活性剂
titanium dioxide
foam fractionation
surfactant
