摘要
采用吸附法以乙酰丙酮稀土配合物对纳米二氧化钛进行表面改性。研究了稀土配合物含量、稀土元素种类、吸附温度、溶剂用量、吸附时间等条件对改性催化剂光降解甲基橙活性的影响,获得了合适的改性条件。结果表明,改性后的纳米二氧化钛光催化活性比未改性的纯二氧化钛有了很大幅度的提高,乙酰丙酮稀土配合物是一种优良的表面改性剂。
The surface of nanosized titanium dioxide was modified by lanthanide-acetylacetonate complexes using adsorption method.The influences of surface modification conditions on photo-degradation activity were studied such as the concentration of lanthanide complex,the lanthanide elements,adsorption temperature,the content of solvent and adsorption time.Appropriate modification conditions were achieved.It is demonstrated that the modified titanium dioxide shows better photocatalytic activity than the neat one,and that lanthanide-acetylacetonate complexes were a kind of good surface modifiers.
出处
《苏州科技学院学报（自然科学版）》
CAS
2009年第4期30-34,共5页
Journal of Suzhou University of Science and Technology （Natural Science Edition）
基金
江苏省环境科学与工程重点实验室基金资助项目(ZD061204)
江苏省教育厅基金资助项目(07KJB430111)
关键词
二氧化钛
稀土
乙酰丙酮
表面改性
降解
titanium dioxide
lanthanide
acetylacetone
surface modification
degradation
