• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Superior visible light photocatalytic performance of reticular BiVO4 synthesized via a modified sol–gel method
【24h】

Superior visible light photocatalytic performance of reticular BiVO4 synthesized via a modified sol–gel method

机译：改进的溶胶-凝胶法合成的网状BiVO4具有优异的可见光光催化性能

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

摘要

Reticular BiVO _(4) catalysts were successfully synthesized via a modified sol–gel method. Here, citric acid (CA) was used as the chelating agent and ethylenediaminetetraacetic acid (EDTA) was used as the chelating agent and template. Furthermore, the effects of pH values and EDTA on the structure and morphology of the samples were studied. We determined that EDTA and pH played important roles in the determination of the morphology of the as-prepared BiVO _(4) samples. Photocatalytic evaluation revealed that the reticular BiVO _(4) exhibited superior photocatalytic performance characteristics for the degradation of methylene blue (MB) under visible-light ( λ > 400 nm) exposure, about 98% of the MB was found to degrade within 50 min. Moreover, the degradation kinetics of MB was in good agreement with pseudo-first-order kinetics. The obtained apparent reaction rate constant k _(app) of reticular BiVO _(4) was much higher than that of BiVO _(4) synthesized by the citric acid sol–gel method.
机译：网状BiVO _（4）催化剂通过改进的溶胶-凝胶法成功合成。在此，柠檬酸（CA）用作螯合剂，乙二胺四乙酸（EDTA）用作螯合剂和模板。此外，研究了pH值和EDTA对样品结构和形态的影响。我们确定EDTA和pH在确定制备的BiVO _（4）样品的形态方面起着重要作用。光催化评估显示，网状BiVO _（4）在可见光（λ> 400 nm）曝光下对亚甲基蓝（MB）的降解表现出优异的光催化性能，发现约98％的MB在50分钟内降解。此外，MB的降解动力学与拟一级动力学具有很好的一致性。网状BiVO _（4）的表观反应速率常数k _（app）远高于柠檬酸溶胶-凝胶法合成的BiVO _（4）。

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