α-Fe_2O_3-TiO_2/SA复合半导体薄膜的制备及光催化性能的研究

电化学（中英文） ›› 2004, Vol. 10 ›› Issue (4): 452-459.

α-Fe_2O_3-TiO_2/SA复合半导体薄膜的制备及光催化性能的研究

陈力勤,钟淮真,陈日耀,郑曦,陈震

福建师范大学化学与材料学院,福建师范大学化学与材料学院,福建师范大学化学与材料学院,福建师范大学化学与材料学院,福建师范大学化学与材料学院福建福州350007 ,福建福州350007 ,福建福州350007 ,福建福州350007 ,福建福州350007

收稿日期:2004-11-28 修回日期:2004-11-28 出版日期:2004-11-28 发布日期:2004-11-28

Preparation and Photo-catalyst Properties of the α-Fe_2O_3-TiO_2 Films on Sodium Alginate Polymer

CHEN Li-qin, ZHONG Huai-zhen, CHEN Ri-yao, ZHENG Xi, CHEN Zhen~*

(College of Chemistry and Materials Science,Fujian Normal University, Fuzhou 350007,China

Received:2004-11-28 Revised:2004-11-28 Published:2004-11-28 Online:2004-11-28

摘要/Abstract

摘要： 　应用sol gel法制备纳米α Fe2O3、TiO2及α Fe2O3 TiO2粉体,并以其作前驱体制得该纳米微粒与海藻酸钠的复合膜.由红外光谱(FT IR)、X 射线粉末衍射(XRD)、荧光光谱(PL)、透射电子显微镜(TEM)和循环伏安(I V)等物理化学方法表征、测定各复合薄膜的表面结构与催化活性.紫外可见吸光光度法等研究结果表明,以杀菌紫外灯作光源,在纳米Fe2O3、TiO2及α Fe2O3 TiO2与海藻酸钠的复合膜悬浮液中,亚甲基蓝可被快速脱色降解,若于α Fe2O3中加入15%的TiO2,其α Fe2O3 TiO2复合晶体比单一的α Fe2O3或TiO2具有更高的光降解活性.

关键词: Fe2O3, TiO2, αFe2O3TiO2, 纳米, 海藻酸钠

Abstract: Three new nano thin films of α-Fe_2O_(3)、TiO_2 and α-Fe_2O_(3)-TiO_2 by doping their powder with sodium alginate polymer were prepared. Surface structure and catalytic activities of the films were characterized by FTIR、XRD、PL、TEM and I-V techniques. The results of UV-visible absorption showed that the methylene blue was mineralized in aqueous of α-Fe_2O_(3)/SA、TiO_2/SA and (α-(Fe_2O_(3)))-TiO_2 /SA upon radiation with ultra violet light. α-Fe_2O_(3) enhanced their photo-decolorized-activities by doping 15% TiO_2.

Key words: α-Fe_2O_(3, ) α-Fe_2O_(3)-TiO_2, Nano materials, Sodium alginate

中图分类号:

O643.32

陈力勤,钟淮真,陈日耀,郑曦,陈震. α-Fe_2O_3-TiO_2/SA复合半导体薄膜的制备及光催化性能的研究[J]. 电化学（中英文）, 2004, 10(4): 452-459.

CHEN Li-qin, ZHONG Huai-zhen, CHEN Ri-yao, ZHENG Xi, CHEN Zhen~*. Preparation and Photo-catalyst Properties of the α-Fe_2O_3-TiO_2 Films on Sodium Alginate Polymer[J]. Journal of Electrochemistry, 2004, 10(4): 452-459.

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https://electrochem.xmu.edu.cn/CN/Y2004/V10/I4/452

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