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

doi:10.61558/2993-074X.1601

电化学 >

2004 , Vol. 10 >Issue 4: 452 - 459

DOI: https://doi.org/10.61558/2993-074X.1601

研究论文

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

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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

网络出版日期: 2004-11-28

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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~

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

Received date: 2004-11-28

Revised date: 2004-11-28

Online published: 2004-11-28

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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

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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, 2004 , 10(4) : 452 -459 . DOI: 10.61558/2993-074X.1601

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.

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