自蔓延-溶胶凝胶法制备尖晶石型纳米ZnFe2O4及其光催化性能研究  

Sol-gel auto-combustion synthesis and photo-catalytic property of spinel ZnFe_2O_4 nano-particles

作　　者：李煌[1] 宋宇[1] 任菲菲[1] 王晓杰[1] 王永为[1,2] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034 [2]吉林大学无机合成与制备化学国家重点实验室,吉林长春130012

出　　处：《大连工业大学学报》2009年第2期121-123,共3页Journal of Dalian Polytechnic University

摘　　要：采用自蔓延-溶胶凝胶法制备纳米ZnFe2O4,使用ICP等离子体发射光谱仪、透射电子显微镜和X射线衍射仪等设备研究了铁酸锌晶相组成、粒度大小和形貌。结果表明,产物具有尖晶石结构,平均粒径约为10 nm。以高压汞灯为光源,ZnFe2O4为光催化剂,对甲基橙溶液进行光催化降解实验。结果表明,经过4 h后甲基橙的脱色率达到了98.5%,表现出优异的催化活性。Spinel ZnFe204 nano-particles were prepared by sol-gel auto-combustion method. The crystal phase composition, particle size and crystal appearance was studied by ICP, XRD, TEM. The results indicated that the products with particle sizes of 10 nm exhibited a spinel-type structure. The prepared ZnFe2O4 nano-particles were applied to photo-catalytic degradation of methyl orange, and the degradation rate was 98.5 % after being irradiated for 4 h.

关 键 词：自蔓延-溶胶凝胶法 尖晶石 铁酸锌 光催化 降解 

分 类 号：TB383[一般工业技术—材料科学与工程] TM227[电气工程—电工理论与新技术]