摘要
用柠檬酸溶胶-凝胶法制备了钙钛矿型La1-xSrxCoO3-δ复合氧化物,用XRD、XPS、EDS、红外、紫外等技术进行了表征,测定了其对活性艳红等水溶性染料光催化脱色的活性.结果表明:在A位掺Sr2+,由于产生较多氧空位,表面非晶格活性氧量增加,使LaCoO3的光催化活性明显提高,其中La0.9Sr0.1CoO3-δ效果最佳.
A series of composite oxides La1-xSrxCoO3-6 （ x = 0,0.02,0.04,0.06,0.08, 0.1,0.2,0.3, 0.4,0.5 ） were prepared by citrate sol-gel method. The LaCoO3 and La1-xSrxCoO3-6 was studied with XRD, XPS, EDS, IR, UV . The photodegradation experiments of water-soluble dyes were carried out in the suspension of La1-xSrxCoO3-6 as the photocatalysts. The results show that the doping can notly improve the photocatalysis activity of LaCoO3 and La0.9Sr0.1CoO3-6 were the best one.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2005年第6期473-476,共4页
Journal of Molecular Catalysis(China)
