...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Actualizing efficient photocatalytic water oxidation over SrTaO2N by Na modification
【24h】

Actualizing efficient photocatalytic water oxidation over SrTaO2N by Na modification

机译：实现高效光催化水氧化对Na SrTaO2N修改

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

Despite a strong visible light absorption at a wavelength as far as 610 nm, SrTaO2N generally exhibits poor photocatalytic activity due to photocatalytic self-decomposition. In this study, we introduce Na into the B site of SrTaO2N and perform an investigation on its crystal structure, optical absorption and photocatalytic water oxidation in response to Na incorporation. Our results suggest that Na incorporation effectively enhances local Ta-O(N) bond strength, which is responsible for strong interband light absorption, low tendency to defect formation and high stability against photocatalytic self-decomposition. Efficient photocatalytic water oxidation was realized in Na-modified SrTaO2N (Sr0.8Na0.2TaO2.8N0.2) with an apparent quantum efficiency as high as 0.2% under visible light illumination (>= 400 nm). This simple strategy highlights the benefits of alkaline metal modification and can be extended to other nitrides or oxynitrides where management of local bond strength is needed.
机译：尽管一个强大的可见光吸收的波长610 nm, SrTaO2N一般由于展览穷光催化活动光催化自分解。我们Na引入到B网站SrTaO2N和执行一项调查对其晶体结构、光吸收、光催化水氧化反应Na合并。我们的研究结果表明,Na合并有效地提高当地Ta-O (N)键的强度,负责强间带灯吗缺陷的形成和吸收,低趋势高稳定度与光催化自分解。水氧化Na-modified实现SrTaO2N (Sr0.8Na0.2TaO2.8N0.2)明显可见下量子效率高达0.2%光照明(> = 400海里)。战略强调碱性的好处金属改性,可以扩展到其他氮化物或氮氧化物,当地的管理键的强度是必需的。

著录项

相似文献

  • 外文文献
  • 中文文献
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