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La掺杂对TiO_2光催化剂的影响 被引量：12

Effects of Lanthanum on Structure and Photo Absorption Performance of TiO_2 Photocatalyst
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摘要 采用溶胶-凝胶法制备了La掺杂的TiO2。通过X射线衍射分析、扫描电镜、紫外-可见光漫反射测试等手段对TiO2进行了结构和光吸收性能研究。结果表明La3+阻碍了锐钛矿向金红石转变,提高了晶形转变温度,La3+掺杂之后的TiO2粒径变小,La3+掺杂TiO2光吸收与煅烧温度有关。 The lanthanum-doped TiO2 photocatalysts were prepared by sol–gel method.Structure and photo absorption performance of the materials were investigated by TG-DTA,XRD and XPS.It was found that doping with La3＋ restricts the anatase phase transforming to rutile phase.The photo absorption of La3＋-doped TiO2 interrelated to the calcining temperature.
作者 徐世华 沈风雷
机构地区 苏州大学材料与化学化工学部
出处 《稀土》 EI CAS CSCD 北大核心 2010年第6期89-92,共4页 Chinese Rare Earths
关键词 溶胶-凝胶 镧 掺杂 二氧化钛 sol-gel method La doping titania
分类号 O643.3 [理学—物理化学] O614.33 [理学—无机化学]
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参考文献10

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共引文献10

同被引文献141

引证文献12

二级引证文献60

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2010年 第6期

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