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掺铅TiO2薄膜的光催化活性及电化学性能

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于书平, 古国榜, 李新军. 掺铅TiO2薄膜的光催化活性及电化学性能[J]. 环境化学, 2004, 23(5): 510-514.
引用本文: 于书平, 古国榜, 李新军. 掺铅TiO2薄膜的光催化活性及电化学性能[J]. 环境化学, 2004, 23(5): 510-514.
shu
YU Shu-ping, GU Guo-bang, LI Xin-jun . THE PHOTO-CATALYTIC ACTIVITY AND ELECTRO-CHEMICAL PROPERTY OF LEAD ION DOPED TiO2 FILM[J]. Environmental Chemistry, 2004, 23(5): 510-514.
Citation: YU Shu-ping, GU Guo-bang, LI Xin-jun . THE PHOTO-CATALYTIC ACTIVITY AND ELECTRO-CHEMICAL PROPERTY OF LEAD ION DOPED TiO2 FILM[J]. Environmental Chemistry, 2004, 23(5): 510-514.
shu

掺铅TiO2薄膜的光催化活性及电化学性能

  • 1.

    华南理工大学应用化学系, 广州, 510640;

  • 2.

    北京化工大学理学院化学系, 北京, 100029;

  • 3.

    中国科学院广州能源研究所, 广州, 510070

  • 基金项目:

    广东省自然科学基金重点项目(010873)

THE PHOTO-CATALYTIC ACTIVITY AND ELECTRO-CHEMICAL PROPERTY OF LEAD ION DOPED TiO2 FILM

  • 1.

    Department of Applied Chemistry, South China University of Technology, Guangzhou, 510640;

  • 2.

    Department of Chemistry, College of Science, Beijing University of Chemical Technology, Beijing, 100029;

  • 3.

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510070

  • Fund Project:

  • 摘要: 采用溶胶凝胶烧结工艺在玻璃表面制备铅离子多层掺杂的光催化复合TiO2薄膜,用XRD技术表征了该薄膜的晶型,并用电化学方法测定了该薄膜电极的伏安特性及交流阻抗性能.以光催化降解甲基橙溶液为模型反应,采用两种不同方式制备的铅离子多层掺杂TiO2薄膜具有很好的光催化活性,最佳掺杂浓度均为0.5%(Pb/Ti原子百分比),PbD0.5掺铅薄膜的最佳光催化降解甲基橙表观速率常数约是纯TiO2的2.52倍.铅离子掺杂TiO2薄膜表现出近表面处捕获光生电子或空穴,随后被捕获的电子或空穴迁移到TiO2薄膜表面参与光催化反应.
    Abstract: The non-uniform lead ion doped TiO2 composite thin films deposited on glass substrates have prepared by sol-gel technology.The crystal properties of the films were investigated by means of XRD techniques.The photo electro chemistry of TiO2 film was measured by electro chemical method.The films photo-catalytic activity was investigated by using the model reaction,the photo-catalytic degradation of methyl orange.The results showed that the lead ion doped TiO2 composite thin films prepared by two different methods had good photo catalytic activity.The optimum doping concentrations are all 0.5%(Pb/Ti atom%).The maximum apparent degradation rate constant,k,of PbD0.5 films is 2.52 times of that in pure TiO2 thin films.Primary,the optimum doping effect is that the electron hold were trapped by the dopant ion near the catalyst surface,then moved to the surface to take the photo catalytic reaction.
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  • [1] 王幼平,余家国,赵修建等,溶胶-凝胶工艺制备掺铅TiO2纳米薄膜及其光催化性能的研究.中国环境科学,1998,18(3)∶244-247
    [2] 赵青南,余家国,赵修建等,釉面砖表面掺铅TiO2涂层的溶胶-凝胶法制备及其光催化性能.陶瓷工程,1998,32(6)∶4-6
    [3] 于向阳,程继健,铁、铬离子掺杂对TiO2薄膜光催化活性的影响.无机材料学报,2001,16(4)∶742-748
    [4] Satoko H,Yasuaki K,Isao Y et al.,Development of Hydrophilic Outside Mirror Coated with Titania Photocatalyst.JSAE Review.,2000,21∶97-102
    [5] 余家国,赵修建,多孔TiO2自洁净玻璃的亲水性和光催化活性.高等学校化学学报,2000,21(9)∶1437-1440
    [6] 刘鸿,冷文华,吴合进等,光电催化降解磺基水杨酸的研究.催化学报,2000,21(3)∶209-212
    [7] Martin K,Marcus M,Philipp R R et al.,Plasma-CVD-Coated Glass Beads as Photocatalyst for Water Decontamination.Catalysis Today,2002,72∶267-279
    [8] 刘鸿,吴鸣,吴合进等,氢处理二氧化钛的光催化性能及电化学阻抗谱.物理化学学报,2001,17(3)∶286-288
    [9] Hong L,Shaoan C,Ming W et al.,Photoelectrocatalytic Degradation of Sulfosalicylic Acid and Its Electrochemical Impedance Spectroscopy Investigation.J.Phys.Chem.,2000,104∶7016-7020
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  • 收稿日期:  2004-01-15
于书平, 古国榜, 李新军. 掺铅TiO2薄膜的光催化活性及电化学性能[J]. 环境化学, 2004, 23(5): 510-514.
引用本文: 于书平, 古国榜, 李新军. 掺铅TiO2薄膜的光催化活性及电化学性能[J]. 环境化学, 2004, 23(5): 510-514.
shu
YU Shu-ping, GU Guo-bang, LI Xin-jun . THE PHOTO-CATALYTIC ACTIVITY AND ELECTRO-CHEMICAL PROPERTY OF LEAD ION DOPED TiO2 FILM[J]. Environmental Chemistry, 2004, 23(5): 510-514.
Citation: YU Shu-ping, GU Guo-bang, LI Xin-jun . THE PHOTO-CATALYTIC ACTIVITY AND ELECTRO-CHEMICAL PROPERTY OF LEAD ION DOPED TiO2 FILM[J]. Environmental Chemistry, 2004, 23(5): 510-514.
shu

掺铅TiO2薄膜的光催化活性及电化学性能

  • 1.  华南理工大学应用化学系, 广州, 510640;
  • 2.  北京化工大学理学院化学系, 北京, 100029;
  • 3.  中国科学院广州能源研究所, 广州, 510070
  • 收稿日期:  2004-01-15
基金项目:

广东省自然科学基金重点项目(010873)

摘要: 采用溶胶凝胶烧结工艺在玻璃表面制备铅离子多层掺杂的光催化复合TiO2薄膜,用XRD技术表征了该薄膜的晶型,并用电化学方法测定了该薄膜电极的伏安特性及交流阻抗性能.以光催化降解甲基橙溶液为模型反应,采用两种不同方式制备的铅离子多层掺杂TiO2薄膜具有很好的光催化活性,最佳掺杂浓度均为0.5%(Pb/Ti原子百分比),PbD0.5掺铅薄膜的最佳光催化降解甲基橙表观速率常数约是纯TiO2的2.52倍.铅离子掺杂TiO2薄膜表现出近表面处捕获光生电子或空穴,随后被捕获的电子或空穴迁移到TiO2薄膜表面参与光催化反应.

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