新型纳米铌酸钙光催化剂的制备及其性能研究  

Synthesis and Performance of Novel Nano-Niobate Ca_2Nb_2O_7 Photocatalysts

作　　者：王和才[1] 司文会[2] 朱永法[2] 黄洁琼[1] 杨巍[1] 

机构地区：[1]苏州农业职业技术学院,江苏苏州215008 [2]清华大学分析中心

出　　处：《化工时刊》2005年第6期15-18,共4页Chemical Industry Times

基　　金：国家自然科学基金资助项目(NO.20433010);苏州农业职业技术学院自然科学基金资助项目。

摘　　要：该研究以溶剂热合成法为制备方法,通过摸索不同的反应条件,制备了一系列铌酸钙光催化纳米材料。利用XRD、TEM、UV—Vis分析手段对所得产品进行了形貌和结构表征,并通过气相光催化降解甲醛及液相光催化降解染料罗丹明B实验研究了纳米铌酸钙的光催化活性,结果表明利用此方法在160℃、13h的条件下,水热制备的纳米Ca2Nb2O7粒径为10nm左右,具有良好的光催化活性。A series of nano-niobate Ca_2Nb_2O_7 photocatalysts were successfully synthesized by solvothermal method. XRD, TEM and UV-Vis were used to characterize the morphology and structure of the products. Photocatalysis performance of the products was also studied by decomposing gaseous formaldehyde and liquid rhodamine B solution. Ca_2Nb_2O_7 nanoparticles had a uniform particle size of 10 nm and nano-Ca_2Nb_2O_7 had a good photocatalytic activity.

关 键 词：铌酸钙 溶剂热 水热法 光催化 

分 类 号：TQ426.8[化学工程]