• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Chemical Bulletin >ENHANCING PHOTOCATALYTIC ACTIVITY OF BISMUTH FERRITE BY DOPING WITH COBALT AND ITS USE FOR DEGRADATION OF EVANS BLUE
【24h】

ENHANCING PHOTOCATALYTIC ACTIVITY OF BISMUTH FERRITE BY DOPING WITH COBALT AND ITS USE FOR DEGRADATION OF EVANS BLUE

机译：钴掺杂增强铋铁酸盐的光催化活性及其在EVANS蓝降解中的应用。

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

摘要

An attempt has been made to enhance the photocatalytic activity of bismuth ferrite by doping it with cobalt, to prepare a catalyst to use in wide pH range for the photodegradation of Evans blue dye. The progress of the reaction has been monitored spectrophotometrically by measuring the absorbance of the reaction mixture at definite time intervals. Different parameters such as pH, the concentration of dye, amount of semiconductor and light intensity were varied to achieve the optimum rate of photodegradation. The results show that doping of bismuth ferrite by cobalt increases the rate of photocatalytic degradation due to narrowing of the band gap. Undoped bismuth ferrite has the highest catalytic activity in basic while the Co-doped catalyst in acidic medium. A tentative mechanism for the reaction has been proposed.
机译：已经尝试通过用钴掺杂来增强铁酸铋的光催化活性，以制备在宽pH范围内用于伊文思蓝染料的光降解的催化剂。通过在确定的时间间隔内测量反应混合物的吸光度，用分光光度法监测反应的进程。改变pH，染料浓度，半导体量和光强度等不同参数，以达到最佳的光降解速率。结果表明，由于带隙变窄，钴对铋铁氧体的掺杂增加了光催化降解的速率。在碱性条件下，未掺杂的铋铁氧体具有最高的催化活性，而在酸性介质中，Co掺杂的催化剂具有最高的催化活性。已经提出了该反应的暂定机理。

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