摘要
制备了纳米二氧化钛/壳聚糖复合材料并利用IR、XRD对其结构进行了剖析,以甲基橙超声降解反应为模型,研究了纳米TiO2/壳聚糖催化超声降解染料废水的性能,结果表明在TiO2/壳聚糖催化下甲基橙超声降解的效果非常明显,在超声波频率40kHz,输出功率50 W,催化剂用量1.0 g/L,pH为7.0,60 min降解率可达到90%以上,纳米TiO2/壳聚糖催化超声降解有机污染物的方法具有较好的应用前景。
Nano -TiOJchitosan ultrasonic degradation catalysts was synthesized and its structure characteristics was analyzed by IR and XRD. Ultrasonic degradation of methyl orange in the presence of nano - TiO2/chitosan catalyst were studied. The researched results indicate the effects of ultrasonic degradation were more obvious in the presence of 1.0g/L nano - TiO2/chitosan irradiated with the ultrasound of 40kHz frequency and 50W power input about 60 min and the degra- dation rate of methyl orange can get to 90% （pH = 7.0） . Thereby the ultrasonic degradation of organic pollutants catalyzed by nano -TiO2/chitosan catalyst are better useful prospect.
出处
《广州化工》
CAS
2010年第1期62-64,共3页
GuangZhou Chemical Industry
基金
福建省青年创新项目(2005J033)
福建省自由探索项目(2006J0185)
集美大学启动基金项目(C60617)
关键词
TIO2
壳聚糖
甲基橙
超声降解
TiO2
chitosan
methyl orange
ultrasonic degradation
