欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用溶胶-凝胶法与微波合成法相结合制备铁氮共掺杂的TiO2光催化剂。通过XRD、FT-IR、UV-Vis、PL等对Fe-N-TiO2样品进行表征和分析,并以亚甲基蓝（MB）作为目标降解物,考察经不同温度热处理及不同掺铁量的样品对MB的降解效果。结果表明所制备的样品在700℃热处理5h后为锐钛矿相与金红石相混晶,样品的吸收阈值波长向可见光红移约45nm。铁氮共掺杂抑制了样品从锐钛矿相向金红石相的转变,提高了TiO2的光催化活性。在普通日光灯下,热处理温度为600℃、掺铁量与TiO2摩尔比为1︰200条件下制备的样品,其光催化活性明显高于Degussa P25。
英文摘要：
The TiO2 photocatalyst samples co-doped with iron and nitrogen were prepared by sol-gel method and microwave chemical method.The samples were analyzed by XRD,FT-IR,UV-Vis,PL etc.The photocatalytic activity of the samples doped with different Fe content and sintered at different temperature were investigated by measuring the methyl blue（MB）degradation rate under the fluorescent lamp irradiation.The results show that Fe-N-TiO2 samples are a mixed phase of anatase and rutile,and the threshold wavelength is red shift about 45nm.The co-doping of iron and nitrogen inhibit the phase transformation from anatase to rutile and the photocatalytic activity is improved.The activity of the sample prepared at 600℃,n（Fe）∶n（TiO2）=1∶200 is the best under fluorescent lamp and is obviously higher than that of Degussa P25.
同期刊论文项目
同项目期刊论文
期刊信息
位置：