...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Activation of Persulfates by Graphitized Nanodiamonds for Removal of Organic Compounds
【24h】

Activation of Persulfates by Graphitized Nanodiamonds for Removal of Organic Compounds

机译：石墨化纳米金刚石活化过硫酸盐以去除有机化合物

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

This study introduces graphited nanodiamond (G-ND) as an environmentally friendly, easy-to-regenerate, and cost-effective alternative catalyst to activate persulfate (i.e., peroxymonosulfate (PMS) and peroxydisulfate (PDS)) and oxidize organic compounds in water. The G-ND was found to be superior for persulfate activation to other benchmark carbon materials such as graphite, graphene, fullerene, and carbon nanotubes. The G-ND/persulfate showed selective reactivity toward phenolic compounds and some pharmaceut- icals, and the degradation kinetics were not inhibited by the presence of oxidant scavengers and natural organic matter. These results indicate that radical intermediates such as sulfate radical anion and hydroxyl radical are not majoriy responsible for this persulfate-driven oxidation of organic compounds. The findings from linear sweep voltammetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, and electron paramagnetic resonance spectroscopy analyses suggest that the both persulfate and phenol effectively bind to G-ND surface and are likely to form charge transfer complex, in which G-ND plays a critical role in mediating facile electron transfer from phenol to persulfate.
机译：这项研究介绍了石墨纳米金刚石（G-ND）作为一种环保，易于再生且具有成本效益的替代催化剂，可活化过硫酸盐（即过氧单硫酸盐（PMS）和过氧二硫酸盐（PDS））并氧化水中的有机化合物。发现G-ND在过硫酸盐活化方面优于其他基准碳材料，例如石墨，石墨烯，富勒烯和碳纳米管。 G-ND /过硫酸盐对酚类化合物和某些药物表现出选择性反应，并且降解动力学不受氧化剂和天然有机物的存在的抑制。这些结果表明自由基中间体，例如硫酸根自由基阴离子和羟基自由基并不主要负责过硫酸盐驱动的有机化合物的氧化。线性扫描伏安法，热重分析，傅立叶变换红外光谱和电子顺磁共振光谱分析的结果表明，过硫酸盐和苯酚都有效地结合到G-ND表面，并可能形成电荷转移复合物，其中G-ND起作用在介导从苯酚到过硫酸盐的便捷电子转移中起关键作用。

著录项

  • 来源
    《Environmental Science & Technology》 |2016年第18期|10134-10142|共9页
  • 作者

    Hongshin Lee; Hyoung-il Kim; Seunghyun Weon; Wonyong Choi; Yu Sik Hwang; Jiwon Seo; Changha Lee; Jae-Hong Kim;

  • 作者单位

    Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States;

    Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States;

    School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, Republic of Korea;

    School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, Republic of Korea;

    Future Environmental Research Center, Korea Institute of Toxicology (KIT), Jinju, 660-844, Republic of Korea,Human and Environmental Toxicology Program, University of Science and Technology (UST), Daejeon, 305-350, Republic of Korea;

    School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

    School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

    Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States;

  • 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