Metal-containing Fenton cata'/> 4-Phenoxyphenol-Functionalized Reduced Graphene Oxide Nanosheets: A Metal-Free Fenton-Like Catalyst for Pollutant Destruction
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >4-Phenoxyphenol-Functionalized Reduced Graphene Oxide Nanosheets: A Metal-Free Fenton-Like Catalyst for Pollutant Destruction
【24h】

4-Phenoxyphenol-Functionalized Reduced Graphene Oxide Nanosheets: A Metal-Free Fenton-Like Catalyst for Pollutant Destruction

机译：4-苯氧基苯酚官能化的还原氧化石墨烯纳米片：用于污染破坏的无金属类Fenton催化剂

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

src="http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-2/acs.est.7b04865/20180111/images/medium/es-2017-048654_0006.gif">Metal-containing Fenton catalysts have been widely investigated. Here, we report for the first time a highly effective stable metal-free Fenton-like catalyst with dual reaction centers consisting of 4-phenoxyphenol-functionalized reduced graphene oxide nanosheets (POP-rGO NSs) prepared through surface complexation and copolymerization. Experimental and theoretical studies verified that dual reaction centers are formed on the C–O–C bridge of POP-rGO NSs. The electron-rich center around O is responsible for the efficient reduction of H2O2 to •OH, while the electron-poor center around C captures electrons from the adsorbed pollutants and diverts them to the electron-rich area via the C–O–C bridge. By these processes, pollutants are degraded and mineralized quickly in a wide pH range, and a higher H2O2 utilization efficiency is achieved. Our findings address the problems of the classical Fenton reaction and are useful for the development of efficient Fenton-like catalysts using organic polymers for different fields.
机译：src =“ http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-2/acs.est.7b04865/20180111/images/medium /es-2017-048654_0006.gif“>含金属的Fenton催化剂已得到广泛研究。在这里，我们首次报告了高效的，稳定的，不含金属的Fenton状催化剂，其双反应中心由通过表面络合和共聚制备的4-苯氧基苯酚官能化的氧化石墨烯纳米片（POP-rGO NSs）组成。实验和理论研究证实，在POP-rGO NSs的C–O–C桥上形成了双重反应中心。 O周围的富电子中心负责将H 2 O 2 有效还原为• OH，而贫电子的中心围绕C从吸附的污染物中捕获电子，并通过C–OC–C桥将其转移到富电子区域。通过这些过程，污染物可以在较宽的pH范围内快速降解和矿化，从而达到较高的H 2 O 2 利用率。我们的发现解决了经典芬顿反应的问题，并且对于使用有机聚合物用于不同领域的高效芬顿样催化剂的开发是有用的。

著录项

  • 来源
    《Environmental Science & Technology》 |2018年第2期|747-756|共10页
  • 作者

    Lai Lyu; Guangfei Yu; Lili Zhang; Chun Hu; Yong Sun;

  • 作者单位

    School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China,Research Institute of Environmental Studies at Greater Bay, Guangzhou University, Guangzhou 510006, China,Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China,Research Institute of Environmental Studies at Greater Bay, Guangzhou University, Guangzhou 510006, China,Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;

    College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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