微波辅助法制备掺铁TiO_2及其光催化性能  

Preparation of Fe-doped TiO_2 by microwave-assisted method and its photocatalytic performance

作　　者：朱义[1,2,3] 曲雯雯[1,4,2] 杨坤[1,2,3] 朱红波[1,2,3] 彭金辉[1,2,3] 

机构地区：[1]微波能工程应用及装备技术国家地方联合工程实验室,昆明650093 [2]非常规冶金省部共建教育部重点实验室,昆明650093 [3]昆明理工大学冶金与能源工程学院,昆明650093 [4]昆明理工大学理学院,昆明650093

出　　处：《化工新型材料》2014年第12期202-204,235,共4页New Chemical Materials

摘　　要：采用微波辅助法在不同掺铁量、不同焙烧温度和不同焙烧时间下制得不同掺铁TiO2光催化材料。运用X射线衍射、紫外可见光漫反射及电感耦合离子体发射光谱仪等多种方法进行表征。结果表明:采用该法铁掺入到了TiO2中,且该法掺铁能够拓宽光谱吸收范围。在获得相同产品的条件下,微波也表现出了更省时的优势。对Fe-TiO2的结构及光催化性能研究表明,掺杂铁离子会抑制金红石型TiO2的生成,能使样品的吸收边带红移,且掺铁量为0.5%的TiO2光催化效果最好。Various Fe-doped TiO2 photocatalytic materials were got by using microwave-assisted synthesis method with different mixed iron content,calcination temperature and calcination time.The characterization used X-ray diffraction line,ultraviolet-visible diffuse reflection,inductively coupled plasma emission spectrometer and other methods.The result indicated that the iron was mixed in titanium dioxide with this method.Besides,the scope of spectral absorption was broaded.Under the background of getting the same product,using microwave was more time-saving.Through the analysis of structure and photocatalytic performance of Fe-TiO2,it showed that doping of iron ion suppressed the formation of rutile type titanium dioxide and could make the sample absorb the sideband redshift.TiO2 with 0.5% of iron can get the best result.

关 键 词：微波 掺铁 光催化 二氧化钛 

分 类 号：O614.411[理学—无机化学] O643.36[理学—化学]