铁镧复合氧化物纳米微粒的制备及其光催化性能  

Preparation and Photocatalytic Activity of La-Fe Composite Oxide Ultrafine Particle

作　　者：王天喜[1] 刘双枝[2] 娄天军[1] 杨风霞[1] 

机构地区：[1]河南科技学院化学化工学院,河南省新乡市华兰大道东段453003 [2]开封大学,河南省开封市457004

出　　处：《光谱实验室》2009年第1期34-38,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：河南科技学院重点科研项目资助资金;河南省自然科学基金资助项目(0211062500)

摘　　要：以溶胶-凝胶法制备了纳米铁镧复合氧化物。通过了XRD、TG-DTA等手段,对该氧化物进行了分析。研究了焙烧温度、光催化剂的用量、光照等因素对催化剂光催化降解活性染料的影响。并用红外光谱分析方法验证光催化降解效果。结果表明在适当的用量和700℃焙烧并在紫外光照射下铁镧复合氧化物对活性翠蓝KGL和活性B-GFF黑有较强的光催化降解活性。La-Fe composite oxide is prepared by sol-gel method.Its microstructure and morphology were analysed by XRD and TG-DTA.The photocatalytic activity of La-Fe composite oxide was tested by photodegradation of the reactive emerald blue KGL and reactive dark BGFF.The influence of roasting temperature and dosage of photocatalyst and illumination on the efficiency of photocatalytic degradation was studied.The results of photocatalytic degradation were analysed by TR.The results revealed that La-Fe composite oxide has very high photocatalytic activity to the reactive emerald blue KGL and reactive dark B-GFF.The conditions were that photocatalyst has seasonable dosage and is roasted on 700℃.UV light was used in photocatalytic degradation.

关 键 词：铁镧复合氧化物 光催化降解 纳米 溶胶-凝胶法 硬脂酸 

分 类 号：O657.32[理学—分析化学] O434.13[理学—化学]