Plasmochemical approach to template-free synthesis of highly crystalline mesoporous TiO2 within milliseconds
Plasmochemical approach to template-free synthesis of highly crystalline mesoporous TiO2 within milliseconds
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等离子体化学方法在毫秒内无模板合成高结晶介孔 TiO2
DOI：
10.1002/cnma.201800574
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发表时间：
--
期刊：
影响因子：
3.8
通讯作者：
Ai-Min Zhu
中科院分区：
文献类型：
--
作者：
Si-Yuan Zhang;Xiao-Song Li;Jing-Lin Liu;Xiaobing Zhu;Ai-Min Zhu
本文报道了一种等离子体化学合成策略，该策略可以在几毫秒内将四异丙醇钛（TTIP）气溶胶在涡旋气流中滑行弧等离子体氧化制备出无模板的高结晶介孔tio2。扫描电镜、高分辨率透射电镜和氮吸附表征证实了虫孔状介孔结构。高结晶介孔tio2的锐钛矿/金红石质量比约为80/20，具有优异的热稳定性和良好的光催化活性。
A plasmochemical synthetic strategy for the template‐free and one‐step preparation of highly crystalline mesoporous TiO2from oxidation of titanium tetraisopropoxide (TTIP) aerosol by gliding arc plasma in a vortex air flow within milliseconds is reported. The scanning electron microscopy, high‐resolution transmission electron microscopy, and nitrogen sorption characterizations confirm the wormhole‐like mesoporous structures. The highly crystalline mesoporous TiO2has an optimized anatase/rutile weight ratio of about 80/20 for photocatalytic applications, exhibiting superior thermal stability and good photocatalytic activity.