摘要
采用室温固相反应法制备的镧镍氧化物对活性染料具有较好的光催化效果。通过XRD,TG-DTA等手段对该材料进行了分析,研究了烧结温度,光催化剂的用量,光照和老化时间等因素对催化剂光催化降解活性染料的影响。结果表明,440℃热处理即可得到性能良好的光催化剂,光照显著增强了催化降解效果,催化剂老化一段时间可明显提高光催化降解率。
The La-Ni oxides synthesized by solid state reaction at room temperature shows a high photo-catalytic activity in degrading reactive dyes. The materials were analyzed by TG-DTA and XRD, and the effect of different sintering temperature and different ageing time on photocatalytic activity were studied. The influence of quantity of photocatalyst and illumi-
nation on the efficiency of decolorization were investigated. The results reveal that the material sintered at 440 ℃ shows better photocatalytic activity and the decolorizing rate of reaction dyes is improved obviously with illumination, and also ageing photocatalyst shows higher photocatalytic activity.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2004年第4期557-560,共4页
Journal of the Chinese Society of Rare Earths
基金
河南省自然科学基金资助项目(0211062500)
关键词
催化化学
镧镍氧化物
染料废水
稀土
catalytic chemistry
La-Ni oxides
reactive dye
rare earths
