...
首页> 外文期刊>Crystal growth & design >Enhanced photochemical response of TiO2/CdSe heterostructured nanowires
【24h】

Enhanced photochemical response of TiO2/CdSe heterostructured nanowires

机译:TiO2 / CdSe异质结构纳米线的光化学响应增强

获取原文
获取原文并翻译 | 示例
           

摘要

High-density single-crystalline TiO2 nanowires (similar to 50 nm diam) were successfully grown on Ti substrates by chemical vapor deposition at a low temperature of 700 degrees C and within a remarkably short time period of 5 min. They were combined with CdSe nanocrystals (similar to 5 nm diam) to form TiO2/CdSe heterotructured nanowires by overcoating the nanowires with the CdSe-containing solution and subsequent annealing at 600 degrees C. The TiO2/CdSe nanowires showed uniformly distributed CdSe nanocrystals, and high crystallinity of rutile and wurtzite from the TiO2 and the CdSe, respectively. Owing to the heterostructure of the TiO2/CdSe, they demonstrate almost full visible-range light absorption and thus enhanced photocatalytic activity by charge separation via electron and hole transfer between the CdSe and the TiO2.
机译:高密度单晶TiO2纳米线(类似于50 nm直径)通过在700摄氏度的低温和5分钟内的短时间内化学气相沉积成功地在Ti基板上生长。它们与CdSe纳米晶体(类似于5 nm直径)结合在一起,通过用含CdSe的溶液覆盖纳米线并随后在600摄氏度下退火来形成TiO2 / CdSe异质结构纳米线。分别从TiO2和CdSe中获得金红石和纤锌矿的高结晶度。由于TiO2 / CdSe的异质结构,它们表现出了几乎完全的可见光吸收,因此通过电子分离电荷以及CdSe和TiO2之间的空穴转移而增强了光催化活性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号