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一种新的光催化剂Bi36Fe2O57的合成及光催化
引用本文:王康康,王晓昌,谢会东.一种新的光催化剂Bi36Fe2O57的合成及光催化[J].陕西化工,2011(12):2084-2086,2125.
作者姓名:王康康  王晓昌  谢会东
作者单位:西安建筑科技大学理学院,陕西西安710055
基金项目:国家自然科学基金重点项目(51021140002);中国博士后基金(20100481324)
摘    要:报道了一种新型光催化剂Bi36Fe2O57的一种改进的共沉淀合成方法,对不同条件下制备的产物进行了X射线衍射物相分析、扫描电镜形貌分析和光催化性能测试。物相分析表明,缓冲溶液在制备单相彤拍Bi36Fe2O57粉体中起着重要作用。紫外可见漫反射谱图表明,Bi36Fe2O57卵粉体的禁带宽度约为2.06eV,中性缓冲溶液条件下合成的Bi36Fe2O57产物结晶性好,在金卤灯下照射3h,对甲基橙的降解率可达82.7%,在紫外灯下照射2.5h降解率达到99.3%。

关 键 词:Bi36Fe2O57  共沉淀法  光催化  缓冲溶液

Synthesis and photocatalytic performance of a new photocatalyst Bi36Fe2O57
WANG Kang-kang,WANG Xiao-chang,XIE Hui-dong.Synthesis and photocatalytic performance of a new photocatalyst Bi36Fe2O57[J].Applied Chemical Industry,2011(12):2084-2086,2125.
Authors:WANG Kang-kang  WANG Xiao-chang  XIE Hui-dong
Affiliation:(School of Science, Xi' an University of Architecture and Technology, Xi' an 710055 ,China)
Abstract:A new photocatalyst,Bi36Fe2O57 was synthesized by an improved copreeipitation method. As- prepared products under different conditions were analyzed by X-ray powder diffraction, scanning electron microscope and photocatalytic tests. Phase analysis results showed that buffer solutions played an important role in the preparation of single phase of Bi36Fe2O57. UV-Vis diffuse spectra showed that the band gap of Bi36Fe2O57 was 2.06 eV. The degradation percent of methyl orange by Bi36Fe2O57 prepared by neutral buffer solution reached 82.7% under metal halide light irradiation for 3 h, and 99.3% under UV light irradiation for 2.5 h
Keywords:Bi36Fe2O57  eopreeipitation  photocatalytie  buffer solution
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