...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nano Energy >A highly efficient Au-MoS2 nanocatalyst for tunable piezocatalytic and photocatalytic water disinfection
【24h】

A highly efficient Au-MoS2 nanocatalyst for tunable piezocatalytic and photocatalytic water disinfection

机译：一种高效的AU-MOS2纳米催化剂，用于可调谐压电催化和光催化水消毒

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

Clean water is essential in our daily life. However, nearly one billion people are forced to drink water contaminated with bacteria, leading to diarrhea, dehydration, and even death. Previously, various photocatalysts have been applied to replace high-cost and highly toxic methods for sewage treatment. Nevertheless, the requirement of external light sources limits their application. Herein, we develop a new type of nanocatalyst based on single- and few-layered molybdenum disulfide (MoS2) nanosheets (NSs) that can catalyze the generation of reactive oxygen species (ROS) to inactivate bacteria either through a piezoelectric effect (mechanical vibration) or photocatalytic effect (light irradiation). After 60 min of mechanical vibration or visible-light irradiation, the MoS2 NSs can reduce Escherichia coli (E. Coli) by 99.999%. In addition, the ROS generation efficiency and bacterial disinfection performance of the catalyst can be enhanced by depositing Au nanoparticles (NPs) on MoS2 NSs. The period of mechanical vibration or visible-light irradiation that achieves the same 99.999% reduction in E. coli is shortened to 45 min. Moreover, a hybridization of the piezoelectric and photocatalytic effects results in a performance superior to that obtained with the individual effects. A 99.999% reduction in E. coli is also accomplished within 15 min through a combination of mechanical vibration and near-infrared (NIR)-light irradiation. This MoS2 nanocatalyst is a promising candidate for nextgeneration water purification systems because of its ability to be triggered by diverse environmental stimuli.
机译：清洁水在日常生活中至关重要。然而，近10亿人被迫喝细菌污染的水，导致腹泻，脱水甚至死亡。此前，已应用各种光催化剂以替代污水处理的高成本和高毒性方法。尽管如此，外部光源的要求限制了它们的应用。在此，我们基于单倍和少数层和少数二硫化钼（MOS2）纳米片（NSS）的新型纳米催化剂，其可以通过压电效应（机械振动）催化反应性氧物质（ROS）的产生。或光催化效果（光照射）。在机械振动或可见光照射60分钟后，MOS2 NSS可以将大肠杆菌（大肠杆菌）减少99.999％。此外，通过在MOS2 NSS上沉积Au纳米颗粒（NPS），可以增强催化剂的ROS生成效率和细菌消毒性能。机械振动或可见光照射的时期缩短到45分钟的25分钟内相同的99.999％。此外，压电和光​​催化效应的杂交导致具有通过个体效果获得的性能优于其。通过机械振动和近红外（NIR） - 灯辐射，在15分钟内降低大肠杆菌的99.999％。该MOS2纳米催化剂是一个有希望的候选人，因为它是由于其通过各种环境刺激引发的能力。

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