%0 Journal Article
%T Preparation and photoactivity of Fe-TiO2 nanocrystalline composites by miniemulsion method<br>微乳法制备Fe-TiO2纳米晶复合体及光催化性能
%A Ma Mingyuan
%A Li Youji
%A Chen Wei
%A Li Leiyong
%A <br>马明远
%A 李佑稷
%A 陈伟
%A 李雷勇
%J 环境工程学报
%D 2010
%I 
%X Nanocrystalline Fe-TiO_2 composites were prepared by the miniemulsion method.The obtained photocatalysts were characterized by thermogravimetric-differential thermal analysis(TG-DTA),x-ray diffraction (XRD),scan electronic microphotograph (SEM) and diffuse reflection spectrum(DRS).Photoactivities of FeTiO_2,TiO_2 and P25 were evaluated by degradation of methylene blue (MB) under UV irradiation.The results show that the photoactivity of Fe-TiO_2 is more than that of P25.This is attributed to the fact that the addition of Fe not only retains crystalline growth,improves thermostabilities and surface areas of Fe-TiO_2,but also shifts the excited wavelength of TiO_2 to visible light regions,produces the high content of Ti~(3+) ions and decreases recombination ratio of photo-generated current carrier.
%K Fe-TiO2
%K nanocrystalline composite
%K methylene blue
%K photocatalytic activity<br>Fe-TiO2
%K 纳米晶复合体
%K 亚甲基蓝
%K 光催化活性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=605C99FEE51836C9541F7FBAD03C99D3&yid=140ECF96957D60B2&vid=E158A972A605785F&iid=94C357A881DFC066&sid=8F39F7FDA07C2566&eid=9A7C41A6BCE530C0&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=17