• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Rapid microwave hydrothermal synthesis of GaOOH nanorods with photocatalytic activity toward aromatic compounds
【24h】

Rapid microwave hydrothermal synthesis of GaOOH nanorods with photocatalytic activity toward aromatic compounds

机译：快速微波水热合成具有光催化活性的芳香族化合物GaOOH纳米棒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

GaOOH nanorods were synthesized from Ga(NO_3)_3 via a facile microwave hydrothermal method. The obtained sample was characterized by x-ray diffraction, N_2 sorption-desorption, UV-vis diffuse reflectance spectroscopy, transmission electron microscopy, electron spin resonance, and x-ray photoelectron spectroscopy. The results revealed that the as-synthesized sample was consisted of rod-like particles. It possessed a surface area of 14.3 m~2 g~(-1),and a band gap of 4.75 eV. The photocatalytic property of GaOOH nanorods was evaluated by the degradation of aromatic compounds (such as benzene and toluene) in an O_2 gas stream under ultraviolet (UV) light illumination. The results demonstrated that GaOOH nanorods exhibited superior photocatalytic activity and stability as compared to commercial TiO_2 (P25, Degussa Co.) in both benzene and toluene degradation. In the extended (35 h) reaction test toward benzene, GaOOH maintained a high activity, and no obvious deactivation was observed. A possible mechanism of the photocatalysis over GaOOH is proposed.
机译：通过简便的微波水热法从Ga（NO_3）_3合成了GaOOH纳米棒。通过X射线衍射，N_2吸附-解吸，UV-可见漫反射光谱，透射电子显微镜，电子自旋共振和X射线光电子光谱对所得样品进行表征。结果表明，合成后的样品由棒状颗粒组成。其表面积为14.3 m〜2 g〜（-1），带隙为4.75 eV。 GaOOH纳米棒的光催化性能是通过在紫外线（UV）照射下O_2气流中芳香族化合物（如苯和甲苯）的降解来评估的。结果表明，与市售TiO_2（P25，德固赛公司（Degussa Co.））相比，GaOOH纳米棒在苯和甲苯的降解方面均表现出优异的光催化活性和稳定性。在延长的（35小时）对苯的反应测试中，GaOOH保持了高活性，没有观察到明显的失活。提出了GaOOH上光催化的可能机理。

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