| 多孔Ce_(1-x)Nd_xO_(2-y)的微波引诱燃烧合成及其光催化性能研究 |
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| 引用本文： | 郝仕油,吕灵莉,李群,王芳,卢玢雅.多孔Ce_(1-x)Nd_xO_(2-y)的微波引诱燃烧合成及其光催化性能研究[J].中国稀土学报,2011,29(3). |
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| 作者姓名： | 郝仕油 吕灵莉 李群 王芳 卢玢雅 |
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| 作者单位： | 1. 浙江师范大学行知学院浙江省固体表面反应化学重点实验室,浙江,金华,321004
2. 浙江师范大学化学与生命科学学院化学系,浙江,金华,321004 |
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| 基金项目： | 浙江师范大学博士科研启动基金; 浙江省自然科学基金(Y4110289)资助 |
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| 摘 要： | 采用硝酸铈、硝酸钕、尿素为原料,使用微波引诱燃烧法合成了多孔Ce1-xNdxO2-y固溶体。利用X射线衍射仪、Raman光谱仪、红外光谱仪、扫描电镜、N2吸附-脱附技术、紫外-可见吸收光谱仪等测试手段对产物进行了表征。XRD分析表明,Ce1-xNdxO2-y固溶体的粒径范围在40~60 nm之内,且所有产物为萤石结构。Raman测试表明,在Ce1-xNdxO2-y中,由于Nd3+的掺杂而产生氧空位,且空位浓度随Nd3+掺杂量的提高而增加。红外结果证明,Ce-O键的吸收峰在1400 cm-1左右处,由于Nd3+的掺杂而使得在2346 cm-1的吸收峰消失。从SEM和孔径分布结果可看出,产物为多孔结构。紫外-可见光吸收和可见光催化降解实验表明,随着Nd3+掺杂量的增加,Ce1-xNdxO2-y的紫外吸收增强;由于多孔结构和氧缺位的产生,产物在可见光范围内有较明显的吸收。
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| 关 键 词： | 多孔Ce1-xNdxO2-y 微波引诱燃烧 紫外-可见光吸收 光催化降解 稀土 |
Microwave-Induced Combustion Synthesis and Photocatalytic Properties of Porous Ce_(1-x)Nd_xO_(2-y) |
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| Hao Shiyou,Lv Lingli,Li Qun,Wang Fang,Lu Binya.Microwave-Induced Combustion Synthesis and Photocatalytic Properties of Porous Ce_(1-x)Nd_xO_(2-y)[J].Journal of the Chinese Rare Earth Society,2011,29(3). |
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| Authors: | Hao Shiyou Lv Lingli Li Qun Wang Fang Lu Binya |
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| Institution: | Hao Shiyou1,Lv Lingli2,Li Qun2,Wang Fang2,Lu Binya2(1.Zhejiang Key Laboratory for Reactive Chemistry on Solid Surface,Xingzhi College,Zhejiang Normal University,Jinhua 321004,China,2.Chemistry Department,College of Chemistry ang Life Sciences,Zhengjiang Normal University,China) |
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| Abstract: | The porous Ce1-xNdxO2-y solid solutions were synthesized by microwave-induced combustion process using cerium nitrate hexahydrate,neodymium nitrate hexahydrate and urea as raw materials.The powders were characterized by X-ray diffraction(XRD),Laser Raman spectrum,FT-IR spectrum,field-emission scanning electron micrography(FE-SEM),N2 adsorption-desorption technology,UV-vis and so on.The XRD analysis revealed that the grain size of Ce1-xNdxO2-y varied between 40 and 60 nm and all of the samples had the struct... |
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| Keywords: | porous Ce1-xNdxO2-y microwave-induced combustion UV-vis absorbance photocatalytic degradation rare earths |
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