Synergetic mediation of reduced graphene oxide and Cu(II) on the oxidation of 2-naphthol in water
文献类型：期刊论文
| 作者 | Pei, Zhiguo1 ; Ma, Jie2; Li, Lingyun3; Xie, Jieli; Wang, Lingqing4; Wen, Bei; Zhang, Shuzhen; Xing, Baoshan1
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 252页码:689-696 |
| 关键词 | Reduced graphene oxide Copper 2-Naphthol Mediation Oxidation Reactive oxygen species |
| ISSN号 | 0269-7491 |
| 英文摘要 | Reduced graphene oxide (rGO) is one of the most widely used carbon nanomaterials. When it is released into the environment, rGO can markedly affect the transformation of many pollutants, and change their fate and risk. In this work, the synergetic effects of rGO and Cu(II) on the oxidation of 2-naphthol were examined in water in the dark. It was found that the coexistence of rGO and Cu(II) significantly promoted the oxidation of 2-naphthol. Corresponding products were identified as the coupling oligomers of 2-naphthol (dimer, trimer and tetramer) and hydroxylated compounds (OH-2-naphthol, OH-dimer, di-OH-dimer and naphthoquinone derivatives). In the oxidation reaction, rGO played dual roles, i.e. adsorbent and electron-transfer mediator. rGO firstly adsorbed Cu(II) and 2-naphthol on its surface, and then transferred electrons from 2-naphthol to Cu(II) to yield 2-naphthol radicals and Cu(I). 2-Naphthol radicals coupled to each other to form different oligomers of 2-naphthol. Cu(I) was re-oxidized back to Cu(II) by dissolved oxygen, which sustained the continuous oxidation of 2-naphthol. During the autoxidation of Cu(I), reactive oxygen species were generated, which further reacted with 2-naphthol to form hydroxylated products. These findings provide new insights into the risk assessment of rGO and 2-naphthol in aquatic environments. (C) 2019 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42600]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Minist Agr & Rural Affairs China, Key Lab Vegetables Qual & Safety Control, Beijing 100081, Peoples R China 5.Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA |
| 推荐引用方式 GB/T 7714 | Pei, Zhiguo,Ma, Jie,Li, Lingyun,et al. Synergetic mediation of reduced graphene oxide and Cu(II) on the oxidation of 2-naphthol in water[J]. ENVIRONMENTAL POLLUTION,2019,252:689-696. |
| APA | Pei, Zhiguo.,Ma, Jie.,Li, Lingyun.,Xie, Jieli.,Wang, Lingqing.,...&Xing, Baoshan.(2019).Synergetic mediation of reduced graphene oxide and Cu(II) on the oxidation of 2-naphthol in water.ENVIRONMENTAL POLLUTION,252,689-696. |
| MLA | Pei, Zhiguo,et al."Synergetic mediation of reduced graphene oxide and Cu(II) on the oxidation of 2-naphthol in water".ENVIRONMENTAL POLLUTION 252(2019):689-696. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。