• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >One-pot template-free synthesis of heterophase BiVO4 microspheres with enhanced photocatalytic activity
【24h】

One-pot template-free synthesis of heterophase BiVO4 microspheres with enhanced photocatalytic activity

机译：一锅法无模板合成具有增强的光催化活性的异相BiVO4微球

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

A one-pot template-free hydrothermal method was developed for the fabrication of BiVO4 microspheres with tetragonal-monoclinic heterophase structures. XRD and HRTEM characterization confirmed the formation of the heterophase structure. It was found that the molar ratio of Bi/V and hydrothermal time were critical parameters in the yield of the spherical morphology and heterophase structure. Benefiting from the unique morphology and existence of the heterophase, the as-prepared BiVO4 microspheres exhibited improved efficiency for RhB degradation in comparison with pure monoclinic scheelite-type BiVO4 and tetragonal zircon-type BiVO4. EPR and TA-PL techniques proved that the photoinduced active species were involved in the photocatalytic degradation of RhB. The enhanced photocatalytic performance can be attributed to the more effective separation of photogenerated carriers generated in the heterophase BiVO4 system, as evidenced by electrochemical measurements.
机译：开发了一种单模板无水热法制备具有四方单斜相异相结构的BiVO4微球。 XRD和HRTEM表征证实了异相结构的形成。发现Bi / V的摩尔比和水热时间是球状形态和异相结构的得率的关键参数。得益于独特的形貌和异相的存在，与纯单斜白钨矿型BiVO4和四方锆石型BiVO4相比，制备的BiVO4微球对RhB的降解效率更高。 EPR和TA-PL技术证明，光诱导的活性物质参与了RhB的光催化降解。如电化学测量所证明的，增强的光催化性能可以归因于在异相BiVO4系统中产生的光生载流子的更有效分离。

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