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单斜相片状纳米TiO2的合成和表征 被引量:2

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摘要 采用一种新方法合成了单斜相TiO2纳米片, 该方法主要包括钛酸纳米片的制备和随后的焙烧两个过程. 首先将自制的锐钛矿粉体TiO2放入10 mol/L NaOH溶液进行水热反应, 随后在超声波作用下用酸洗涤其固体产物得到钛酸纳米片. TEM结果显示钛酸纳米片的尺寸随着水热反应温度(150~200℃)的升高而变大. 较高温度(180~200℃)下的水热反应生成的钛酸纳米片在400~500℃焙烧后可以转变成具有一定光催化活性的单斜相TiO2(B)纳米片, 但在较低水热反应温度(150℃)下生成的钛酸片状产物在400~500℃焙烧后却转变为锐钛矿TiO2纳米颗粒.
作者 吴玉 徐柏庆
出处 《科学通报》 EI CAS CSCD 北大核心 2005年第13期1310-1313,共4页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:20125310,20443008) 国家重点基础研究发展规划(批准号:2003CB615804)资助项目
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