摘要
以硝酸铈和异丙醇钛为铈源和钛源,利用溶胶-凝胶和胶晶模板技术合成了一种新型Ce掺杂的有序大孔TiO_2光催化材料,并用扫描电镜、透射电镜、X射线衍射、紫外-可见光谱、比表面积分析等手段对样品结构和形貌进行了表征。最后以甲基橙溶液为对象,在可见光条件下,考察了不同Ce掺杂量的大孔TiO_2材料的可见光催化性能。结果表明,Ce掺杂的大孔TiO_2材料在可见光条件下展现出良好的光催化性能和循环再生能力,当Ce/Ti摩尔比为0.3∶1时,光催化性能最佳,甲基橙降解率可达96%。
A new-type ordered macroporous TiO2 material doped with Ce was prepared by sol-gel and colloidal crystal template methods with cerium nitrate and tetrabutyl titanate as precursors.The samples were characterized by SEM,TEM,XRD,UV-Vis,and BET methods.The obtained samples displayed excellent photocatalytic ability and recycling ability under the condition of visible light.When the mole ratio of Ce/Ti was 0.3∶1,Ce/TiO2 displayed the best photocatalytic ability and the degradation efficiency of methyl orange was 96%.
作者
孙慧
赵东风
李石
Sun Hui;Zhao Dongfeng;Li Shi(Qingdao Oasis Environmental and Safety Technology Co.,Ltd.,Qingdao 266555;College of Chemical Engineering,China University of Petroleum（East China）,Qingdao 266580;Center for Safety,Environmental ~ Energy Conservation Technology,China University of Petroleum（East China）,Qingdao 266580)
出处
《化工新型材料》
CAS
CSCD
北大核心
2018年第7期93-96,共4页
New Chemical Materials
基金
山东省自然科学基金项目(ZR201702150018)
中央高校基本科研基金项目(17CX05017)
关键词
有序大孔
二氧化钛
二氧化铈
光催化材料
ordered macropore
titanium dioxide
cerium nitrate
photocatalytic material
