• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Separation and Purification Technology >Titanate supported cobalt catalysts for photochemical oxidation of phenol under visible light irradiations
【24h】

Titanate supported cobalt catalysts for photochemical oxidation of phenol under visible light irradiations

机译：钛酸酯负载的钴催化剂，用于可见光照射下苯酚的光化学氧化

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

Three metal titanates, ZnTiO3 (Zn), FeTiO3 (Fe) and Bi4Ti3O_(12) (Bi), were employed to prepare supported cobalt catalysts for photocatalytic and photochemical oxidation of phenol with peroxymonosulphate (PMS) or peroxydisulphate (PDS) under visible light irradiations. It was found that the oxidation efficiencies varied greatly due to the different photochemical behaviours of various supports. Using PMS, both Co(5%)/Zn and Co(3%)/Bi achieved complete degradation of phenol in 120 min, as compared to 66.9% of phenol removal on Co(5%)/Fe in 150 min. However, those catalysts were found not efficient in activation of PDS. Co(5%)/Bi, as the best catalyst, provided only 66.9% of phenol degradation in 150 min. The effects of the supports were related to the varying photophysical properties and the interactions with loaded Co3O4. The stability of Co(5%)/Zn with PMS was further investigated and it was found that 85.4% of the activity could be retained in phenol degradation in the fourth run.
机译：使用三种金属钛酸盐ZnTiO3（Zn），FeTiO3（Fe）和Bi4Ti3O_（12）（Bi）制备负载型钴催化剂，用于在可见光照射下用过氧单硫酸盐（PMS）或过氧二硫酸盐（PDS）光催化和光化学氧化苯酚。 。已经发现，由于各种载体的不同光化学行为，氧化效率差异很大。使用PMS，Co（5％）/ Zn和Co（3％）/ Bi均在120分钟内实现了苯酚的完全降解，而150分钟内Co（5％）/ Fe上的苯酚去除率为66.9％。然而，发现这些催化剂不能有效活化PDS。 Co（5％）/ Bi作为最佳催化剂，在150分钟内仅提供66.9％的苯酚降解。载体的作用与变化的光物理性质以及与负载的Co3O4的相互作用有关。进一步研究了PMS对Co（5％）/ Zn的稳定性，发现在第四次试验中，苯酚降解可保留85.4％的活性。

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