• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Stable plasmonic Ag/AgCl–polyaniline photoactive composite for degradation of organic contaminants under solar light
【24h】

Stable plasmonic Ag/AgCl–polyaniline photoactive composite for degradation of organic contaminants under solar light

机译：稳定的等离激元Ag / AgCl-聚苯胺光敏复合材料，可在太阳光下降解有机污染物

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

摘要

A series of novel plasmonic photocatalysts of Ag/AgCl–polyaniline (Ag/AgCl–PANI) were successfully synthesized by deposition–precipitation reaction followed by a photo-reduction method. The prepared photocatalysts were characterized by X-ray diffraction, field emission scanning electron microscopy, ultraviolet-visible diffuse reflectance spectroscopy, photoluminescence emission spectroscopy, and thermogravimetric analysis. Ag/AgCl–PANI was used to degrade methylene blue (MB) under simulated solar light. The effects of different parameters such as PANI content, initial pH and concentration of the MB solution, and catalyst dosage on the photo-degradation efficiency were assessed. Ag/AgCl–PANI plasmonic photocatalyst displayed much higher photocatalytic efficiency than the pure PANI or Ag/AgCl. The improved photocatalytic performances of the prepared photocatalysts were attributed to the high absorbance in the visible-light region, high surface areas of catalysts and the effective synergism of hetero-junction structure formed at the interface between Ag/AgCl and PANI, leading to improved separation of the photo-generated electron–hole pairs. A possible mechanism for the photo-degradation of MB molecules under simulated solar irradiation was suggested based on trapping experiments.
机译：通过沉积-沉淀反应然后进行光还原法成功地合成了一系列新型的等离激元Ag / AgCl-聚苯胺光催化剂（Ag / AgCl-PANI）。通过X射线衍射，场发射扫描电子显微镜，紫外可见漫反射光谱，光致发光发射光谱和热重分析来表征所制备的光催化剂。 Ag / AgCl–PANI用于在模拟太阳光下降解亚甲基蓝（MB）。评估了不同参数（例如PANI含量，MB溶液的初始pH和浓度以及催化剂用量）对光降解效率的影响。 Ag / AgCl-PANI等离子体光催化剂显示出比纯PANI或Ag / AgCl高得多的光催化效率。所制备的光催化剂的光催化性能的改善归因于可见光区的高吸收度，催化剂的高表面积以及在Ag / AgCl与PANI之间的界面上形成的异质结结构的有效协同作用，从而改善了分离度。光生电子-空穴对的数量。基于捕获实验，提出了在模拟太阳辐射下MB分子光降解的可能机理。

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