Ultrasonic synthesis and photocatalytic activity investigation of TiO2 nanoarrays
Ultrasonic synthesis and photocatalytic activity investigation of TiO2 nanoarrays
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DOI：
10.1016/j.matlet.2006.09.064
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发表时间：
2007-05
影响因子：
3
通讯作者：
Xiaohong Xia;Y. Luo;Zesong Wang;Ying Liang;Jing Fan;Z. Jia;Z. Chen
中科院分区：
文献类型：
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作者：
Xiaohong Xia;Y. Luo;Zesong Wang;Ying Liang;Jing Fan;Z. Jia;Z. Chen
采用超声波法在TiCl4/HCl溶液中成功合成了TiO2纳米阵列。通过 XRD、SEM、TEM 和 SAED 技术对产物进行了研究。结果表明产物为纯单晶金红石TiO2纳米阵列。阵列的尺寸范围为 20 至 300 nm，每个阵列均由直径约 8 nm、长度约 200 nm 的小纳米棒组成。还讨论了TiO2纳米结构的生长机理。通过亮红X-3B水溶液的光降解研究了产物的光催化活性。结果发现，该阵列比 TiO2 纳米棒和 Degussa P25 表现出更好的光催化活性。
TiO2nanoarrays were successfully synthesized by an ultrasonic method in TiCl4/HCl solution. The products were investigated by XRD, SEM, TEM and SAED techniques. The results indicated that the products were pure single crystal rutile TiO2nanoarrays. The size of the arrays ranged from 20 to 300 nm with each of them consisting of small nanorods of about 8 nm in diameter and 200 nm in length. The growth mechanism of the TiO2nanostructure was also discussed. The photocatalytic activity of the products was investigated by photodegradation of aqueous brilliant red X-3B solution. It was found that the arrays exhibited better photocatalytic activity both than TiO2nanorods and Degussa P25.