• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International conference on multi-functional materials and structures >Effects of chlorine ion on the photocatalytic activity of cuprous oxide powders prepared by hydrothermal method
【24h】

Effects of chlorine ion on the photocatalytic activity of cuprous oxide powders prepared by hydrothermal method

机译：氯离子对水热法制备氧化亚铜粉的光催化活性的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cuprous oxide(Cu2O) microcrystals were successfully synthesized via hydrothermal method using CuSO4·5H2O and Na2SO3 in HAc-NaAc buffer solution. The products were characterized by X-rays diffraction (XRD) ,scan election microscopy (SEM) and ultraviolet-visible (UV-vis) spectroscopy. The photocatalytic activity of the as-prepared Cu2O powders was evaluated by the photocatalytic degradation of methyl orange solution under visible light irradiation at room temperature in air. The effects of chlorine ion on the photocatalytic activity of the Cu2O powders were investigated and discussed. The results show that chlorine ion in solution can obviously decrease the photocatalytic activity of Cu2O. When the concentration of chlorine ion increased to 0.5mol/L(about Cl- concentration in the seawater), the photocatalytic ratio of Cu2O decrease to 45% compared with the value in pure water. Increasing solution pH can enhance the photocatalytic activity of Cu2O. The mechanism of photo-degradation was discussed.
机译：在HAc-NaAc缓冲溶液中，采用CuSO4·5H2O和Na2SO3通过水热法成功合成了氧化亚铜（Cu2O）微晶。通过X射线衍射（XRD），扫描电子显微镜（SEM）和紫外可见（UV-vis）光谱对产物进行表征。通过在室温下在空气中在可见光照射下甲基橙溶液的光催化降解来评估所制备的Cu2O粉末的光催化活性。研究和讨论了氯离子对Cu2O粉末光催化活性的影响。结果表明，溶液中的氯离子可明显降低Cu2O的光催化活性。当氯离子的浓度增加到0.5mol / L（大约为海水中的Cl-浓度）时，Cu2O的光催化率比纯水中的值降低了45％。增加溶液的pH值可以增强Cu2O的光催化活性。讨论了光降解的机理。

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