...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Ag/AgCl@MIL-88A(Fe) heterojunction ternary composites: towards the photocatalytic degradation of organic pollutants
【24h】

Ag/AgCl@MIL-88A(Fe) heterojunction ternary composites: towards the photocatalytic degradation of organic pollutants

机译：AG / AGCL @ MIL-88A（FE）异质结三元复合材料：朝向有机污染物的光催化降解

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

The efficient utilization of solar energy has received tremendous interest due to the increasing environmental and energy concerns. The present paper discusses the efficient integration of a plasmonic photocatalyst (Ag/AgCl) with an iron-based metal-organic framework (MIL-88A(Fe)) for boosting the visible light photoreactivity of MIL-88A(Fe). Two composites of Ag/AgCl@MIL-88A(Fe), namely MAG-1 and MAG-2 (stoichiometric ratio of Fe to Ag is 5 : 1 and 2 : 1), were successfully synthesized via facile in situ hydrothermal methods followed by UV reduction. The synthesized composite materials are characterized by FTIR, PXRD, UVDRS, PL, FESEM/EDX, TEM and BET analyses. The Ag/AgCl@MIL-88A(Fe) (MAG-2) hybrid system shows excellent photocatalytic activity for the degradation of p-nitrophenol (PNP), rhodamine B (RhB), and methylene blue (MB) under sunlight. We found that 91% degradation of PNP in 80 min, 99% degradation of RhB in 70 min and 94% degradation of MB in 70 min have taken place by using MAG-2 as a catalyst under sunlight. The superior activity of Ag/AgCl@MIL-88A(Fe) (MAG-2) is attributed to the synergistic effects from the surface plasmon resonance (SPR) of Ag NPs and the electron transfer from MIL-88A(Fe) to Ag nanoparticles for effective separation of electron-hole pairs. Furthermore, the mechanism of degradation of PNP, RhB and MB is proposed by analyzing the electron transfer pathway in Ag/AgCl@MIL-88A(Fe).
机译：由于人们对环境和能源的日益关注，太阳能的高效利用受到了极大的关注。本文讨论了等离子体光催化剂（Ag/AgCl）与铁基金属有机骨架（MIL-88A（Fe））的有效集成，以提高MIL-88A（Fe）的可见光光光活性。两种银复合材料/AgCl@MIL-通过简单的原位水热法和紫外还原法成功地合成了88A（Fe），即MAG-1和MAG-2（Fe与Ag的化学计量比分别为5:1和2:1）。通过FTIR、PXRD、UVDRS、PL、FESEM/EDX、TEM和BET分析对合成的复合材料进行了表征。Ag/AgCl@MIL-88A（Fe）（MAG-2）杂化体系在阳光下对对硝基苯酚（PNP）、罗丹明B（RhB）和亚甲基蓝（MB）具有良好的光催化降解活性。我们发现，在阳光下使用MAG-2作为催化剂，PNP在80分钟内降解91%，RhB在70分钟内降解99%，MB在70分钟内降解94%。银的优越活性/AgCl@MIL-88A（Fe）（MAG-2）归因于银纳米颗粒表面等离子体共振（SPR）的协同效应，以及从MIL-88A（Fe）到银纳米颗粒的电子转移，以有效分离电子-空穴对。此外，通过分析银中的电子转移途径，提出了PNP、RhB和MB的降解机理/AgCl@MIL-88A（Fe）。

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