Transformation of hydroquinone to benzoquinone mediated by reduced graphene oxide in aqueous solution
文献类型：期刊论文
| 作者 | Li, Chunmei; Li, Lingyun; Sun, Lixiang; Pei, Zhiguo; Xie, Jieli; Zhang, Shuzhen |
| 刊名 | CARBON
 |
| 出版日期 | 2015-08 |
| 卷号 | 89页码:74-81 |
| 英文摘要 | The mediation effect of reduced graphene oxide (rGO) on the oxidative transformation of 1,4-hydroquinone (H(2)Q) to 1,4-benzoquinone (BQ) in aqueous solution was investigated using a batch method and electron paramagnetic resonance. The results showed that the autoxidation of H(2)Q was spin-restricted and extremely slow in acidic and neutral pH range, but this process can be dramatically accelerated when rGO was added. In the presence of 33.3 mg L-1 rGO, more than 76.0% of H(2)Q was oxidized to BQ within 36 h. The enhancement effects of rGO were attributed to the combined contribution of the high chemical reactivity of graphenic edges and defects on rGO and the high electron conductivity of graphene basal surface of rGO. It is proposed that dissolved oxygen reacted with graphenic edges and defects of rGO to produce surface-bound oxygen intermediates, which capture H atoms from the phenolic hydroxyl groups of H(2)Q and facilitate the generation of semiquinone radical (SQ(center dot-)). The generated SQ(center dot-) continued to transfer an electron to molecular oxygen to yield superoxide radical (OF) and BQ. As a chain-carrying radical, OF further reacted with H(2)Q to produce SQ(center dot-) and H2O2. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000354592100009 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32693]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Li, Chunmei,Li, Lingyun,Sun, Lixiang,et al. Transformation of hydroquinone to benzoquinone mediated by reduced graphene oxide in aqueous solution[J]. CARBON,2015,89:74-81. |
| APA | Li, Chunmei,Li, Lingyun,Sun, Lixiang,Pei, Zhiguo,Xie, Jieli,&Zhang, Shuzhen.(2015).Transformation of hydroquinone to benzoquinone mediated by reduced graphene oxide in aqueous solution.CARBON,89,74-81. |
| MLA | Li, Chunmei,et al."Transformation of hydroquinone to benzoquinone mediated by reduced graphene oxide in aqueous solution".CARBON 89(2015):74-81. |
入库方式： OAI收割
来源：生态环境研究中心
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