高分子凝胶法制备纳米ZnO/La_2O_3及光催化性能  

Photocatalysis and Preparation of Nanometer-sized ZnO/La_2O_3 by Polyacrylamide Gel Method

作　　者：刘健[1] 杨雪[2] 

机构地区：[1]沈阳有色金属研究院,辽宁沈阳110141 [2]东北大学化学系,辽宁沈阳110004

出　　处：《有色矿冶》2005年第5期36-38,共3页Non-Ferrous Mining and Metallurgy

摘　　要：以Zn(CH3COO)2.2H2O,AgNO3为原料,丙烯酰胺为单体,N,N’-亚甲基双丙烯酰胺为网络剂,采用高分子凝胶法在550℃下制得纳米ZnO/La2O3。通过XRD物相分析,得知沉积稀土氧化物La2O3的ZnO纳米粒子样品的物相均是六方晶系纤锌矿结构;TEM形貌观察,粒子基本为球形,纳米ZnO/La2O3的平均粒径约为26 nm,红外光谱分析高分子的分解程度,在550℃时分解完全。水溶液中次甲基蓝染料在ZnO/La2O3半导体光催化条件下,pH值为9时,能迅速分解,在降解90 min时,次甲基蓝的降解率达到81%。Nanometer-sized ZnO/La_2O_3 was prepared in 550 ℃ by polyacrylamide gel method.Zinc acetate and silver nitrate are used as starting material,acrylamide and N,N'-methylenediacrylamide are used as monomer and lattice reagent.The phase is wurtize through analyzing by XRD,although ZnO was coated noble La_2O_3.The particle figure is global on the whole,and the even diameter size of ZnO/La_2O_3is about 26 nm with analyzing by TEM.Through analyzing by FT-IR,organic matter should be decomposed sufficiently in 550 ℃...

关 键 词：高分子凝胶 纳米 氧化锌 氧化镧 光催化 

分 类 号：TB381[一般工业技术—材料科学与工程]