乙二醇溶剂热合成自组装SrTiO_3片状纳米结构及其光催化性能  

EG-solvothermal synthesis of self-assembly SrTiO_3 nano sheets and photocatalytic property

作　　者：张严芳[1] 徐刚[1] 魏晓[1] 任召辉[1] 沈鸽[1] 郑伟[1] 韩高荣[1] 

机构地区：[1]浙江大学材料系硅材料国家重点实验室,浙江杭州310027

出　　处：《功能材料》2012年第10期1258-1262,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50452003)

摘　　要：以钛酸四正丁酯((C4H9O)4Ti)水解沉淀的钛羟基氧化物和硝酸锶(Sr(NO3)2)为反应原料,以氢氧化钾(KOH)为矿化剂,以乙二醇((HOCH2)2)为溶剂,经200℃溶剂热反应得到了由纳米颗粒自组装形成的SrTiO3片状纳米结构。分别用XRD、SEM、TEM表征SrTiO3粉体的物相结构和微观形貌。通过光催化降解罗丹明B(RhB)对比研究了乙二醇溶剂热合成的纳米颗粒自组装SrTiO3片状纳米结构和水热合成的SrTiO3粉体的光催化性能,结果表明,乙二醇溶剂热合成的SrTiO3自组装片状纳米结构具有更加优异的光催化性能。Strontium titanate （SrTiO3） nanosheets self-assembled by nanoparticles were successfully synthesized by ethylene glycol solvothermal reaction route with titanium oxide hydroxyl as reaction materials and potassium hydroxide （KOH） as mineralizer at 200℃. The composition and morphology of the synthesized powders were investigated using XRD, SEM and TEM. The photocatalytic activities of the samples synthesized by hydrother- mal and solvothermal method were studied through recording the degradation of Rhodamine B （RhB） in UV. The result shows that the SrTiO3 self-assembly nanosheets perform better photocatalytic activities.

关 键 词：SRTIO3 溶剂热 乙二醇 自组装 光催化 

分 类 号：TB321[一般工业技术—材料科学与工程]