• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Nanomaterials >A Novel Au@Cu2O-Ag Ternary Nanocomposite with Highly Efficient Catalytic Performance: Towards Rapid Reduction of Methyl Orange Under Dark Condition
【2h】

A Novel Au@Cu2O-Ag Ternary Nanocomposite with Highly Efficient Catalytic Performance: Towards Rapid Reduction of Methyl Orange Under Dark Condition

机译：具有高效催化性能的新型Au @ Cu2O-Ag三元纳米复合材料：在黑暗条件下快速还原甲基橙

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Au@Cu O core-shell nanocomposites (NCs) were synthesized by reducing copper nitrate on Au colloids with hydrazine. The thickness of the Cu O shells could be varied by adjusting the molar ratios of Au: Cu. The results showed that the thickness of Cu O shells played a crucial role in the catalytic activity of Au@Cu O NCs under dark condition. The Au@Cu O-Ag ternary NCs were further prepared by a simple galvanic replacement reaction method. Moreover, the surface features were revealed by TEM, XRD, XPS, and UV–Vis techniques. Compared with Au@Cu O NCs, the ternary Au@Cu O-Ag NCs had an excellent catalytic performance. The degradation of methyl orange (MO) catalyzed by Au@Cu O-Ag NCs was achieved within 4 min. The mechanism study proved that the synergistic effects of Au@Cu O-Ag NCs and sodium borohydride facilitated the degradation of MO. Hence, the designed Au@Cu O-Ag NCs with high catalytic efficiency and good stability are expected to be the ideal environmental nanocatalysts for the degradation of dye pollutants in wastewater.
机译：通过用肼还原Au胶体上的硝酸铜来合成Au @ Cu O核壳纳米复合材料（NCs）。可以通过调节Au∶Cu的摩尔比来改变Cu O壳的厚度。结果表明，在黑暗条件下，Cu O壳的厚度对Au @ Cu O NCs的催化活性起着至关重要的作用。通过简单的电置换反应方法进一步制备了Au @ Cu O-Ag三元NC。此外，通过TEM，XRD，XPS和UV-Vis技术揭示了表面特征。与Au @ Cu O-NC NCs相比，三元Au @ Cu O-Ag NCs具有优异的催化性能。 Au @ Cu O-Ag NCs催化降解甲基橙（MO）的时间为4分钟。机理研究证明，Au @ Cu O-Ag NCs与硼氢化钠的协同作用促进了MO的降解。因此，设计的具有高催化效率和良好稳定性的Au @ Cu O-Ag NCs有望成为降解废水中染料污染物的理想环境纳米催化剂。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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