摘要
该文主要采用溶胶—凝胶法合成了纳米LaFeO3和SrFeO3,并采用XRD,TEM等技术对其进行表征,并以其为光催化剂在荧光汞灯照射下对水溶性染料进行降解实验,结果表明采用溶胶-凝胶法合成的SrFeO3光催化活性高于LaFeO3。通过XPS分析认为SrFeO3的光催化活性远远高于LaFeO3,主要取决于SrFeO3中表面吸附氧的含量远远大于LaFeO3中表明吸附氧的含量。
Nano-particles LaFeO3 and SrFeO3 are synthesized by sol-gel method in this article.The structure and morphology of the samples are characterized by powder X ray diffraction （XRD） and TEM. Using a luminous Hg lamp as irradiator,the degradation experiments of various water-soluble dyes are carried out in the suspension system of the samples.The results show that photocatalytic activities of SrFeO3 is better than that of LaFeO3. According to the results of XPS analysis,content of adsorbed oxygen in SrFeO3 is h...
出处
《实验室科学》
2009年第5期61-64,共4页
Laboratory Science
基金
国家自然科学基金资助项目(项目编号:20671069)
