| ABO3型钙钛矿结构的可见光光催化剂LaCo0.5Ti0.5O3的设计与合成 |
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| 引用本文： | 杨立滨,井立强,李姝丹,蒋保江,付薇,付宏刚.ABO3型钙钛矿结构的可见光光催化剂LaCo0.5Ti0.5O3的设计与合成[J].高等学校化学学报,2007,28(3):415-418. |
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| 作者姓名： | 杨立滨 井立强 李姝丹 蒋保江 付薇 付宏刚 |
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| 作者单位： | 1. 黑龙江大学化学化工与材料学院物理化学实验室,哈尔滨,150080;佳木斯大学化学与药学院,佳木斯,154007
2. 黑龙江大学化学化工与材料学院物理化学实验室,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金
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黑龙江省自然科学基金
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黑龙江省哈尔滨市青年科学基金 |
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| 摘 要： | 采用溶胶-凝胶法在较低温度条件下设计合成了新型的具有ABO3型钙钛矿结构的三元金属复合氧化物LaCo0.5Ti0.5O3. 通过TG-DTA, XRD, XPS, UV-Vis DRS等测试技术和可见光光催化活性测试对其进行了表征. 结果表明, 与LaCoO3和La2Ti2O7相比, LaCo0.5Ti0.5O3样品表现出相对较高的可见光光催化活性, 并且合成温度较低. 这是由于原料中的Co2+和Ti4+离子通过电荷补偿作用使产物B位的两种金属均以+3价氧化态分布所致.
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| 关 键 词： | 钙钛矿 LaCo0.5Ti0.5O3 溶胶-凝胶法 可见光光催化 |
| 文章编号： | 0251-0790（2007）03-0415-04 |
| 收稿时间： | 2006-09-28 |
| 修稿时间： | 2006-09-28 |
Design and Synthesis of a Visible Light Driven Photocatalyst LaCo 0.5 Ti 0.5O3 with ABO3-type Perovskite Structure |
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| YANG Li-Bin,JING Li-Qiang,LI Shu-Dan,JIANG Bao-Jiang,FU Wei,FU Hong-Gang.Design and Synthesis of a Visible Light Driven Photocatalyst LaCo 0.5 Ti 0.5O3 with ABO3-type Perovskite Structure[J].Chemical Research In Chinese Universities,2007,28(3):415-418. |
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| Authors: | YANG Li-Bin JING Li-Qiang LI Shu-Dan JIANG Bao-Jiang FU Wei FU Hong-Gang |
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| Institution: | 1. Laboratory of Physical Chemistry, School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, China; 2. College of Chemistry and Pharmacology, Jiamusi University, Jiamusi 154007, China |
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| Abstract: | A novel ternary metal complex oxide, LaCo0.5Ti0.5O3, with ABO3-type perovskite structure was designed and synthesized by a sol-gel method at relatively low temperature, and were characterized by means of several testing techniques such as TG-DTA, XRD, XPS and UV-Vis DRS spectra. The results show that, compared with LaCoO3 and La2Ti2O7, the as-prepared sample exhibits a higher photocatalytic activity under visible light irradiation, and can be obtained at lower temperature. It can be proposed that the charge compensation effects make Co2 and Ti4 ions in raw material co-occupy uniformly B site in perovskite both as the forms of 3 valence, which is responsible for the lower temperature synthesis. |
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| Keywords: | Perovskite LaCo0 5Ti0 5O3 Sol-gel method Visible light photocatalysis |
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