Thermal catalytic oxidation of octachloronaphthalene over anatase TiO2 nanomaterial and its hypothesized mechanism
文献类型：期刊论文
| 作者 | Su, Guijin; Li, Qianqian; Lu, Huijie; Zhang, Lixia; Huang, Linyan; Yan, Li; Zheng, Minghui |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015-12-08 |
| 卷号 | 5页码:- |
| 英文摘要 | As an environmentally-green technology, thermal catalytic oxidation of octachloronaphthalene (CN-75) over anatase TiO2 nanomaterials was investigated at 300 degrees C. A wide range of oxidation intermediates, which were investigated using various techniques, could be of three types: naphthalene-ring, single-benzene-ring, and completely ring- opened products. Reactive oxygen species on anatase TiO2 surface, such as O-2(-center dot) and O2-, contributed to oxidative degradation. Based on these findings, a novel oxidation degradation mechanism was proposed. The reaction at (101) surface of anatase TiO2 was used as a model. The naphthalene-ring oxidative products with chloronaphthols and hydroxyl-pentachloronaphthalene- dione, could be formed via attacking the carbon of naphthalene ring at one or more positions by nucleophilic O-2(-). Lateral cleavage of the naphthalene ring at different C-1-C-10 and C-4-C-9, C-1-C-2 and C-4-C-9, C-1-C-2 or and C-3-C-4 bond positions by electrophilic O-2(-center dot) could occur. This will lead to the formation of tetrachlorophenol, tetrachloro-benzoic acid, tetrachloro-phthalaldehyde, and tetrachloro-acrolein-benzoic acid, partially with further transformation into tetrachlorobenzene-dihydrodiol and tetrachloro-salicylic acid. Unexpectedly, the symmetric half section of CN-75 could be completely remained with generating the intricate oxidative intermediates characteristically containing tetrachlorobenzene structure. Complete cleavage of naphthalene ring could produce the ring- opened products, such as formic and acetic acids. |
| 研究领域[WOS] | Multidisciplinary Sciences |
| WOS记录号 | WOS:000365961100002 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32688]  |
| 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 | Su, Guijin,Li, Qianqian,Lu, Huijie,et al. Thermal catalytic oxidation of octachloronaphthalene over anatase TiO2 nanomaterial and its hypothesized mechanism[J]. SCIENTIFIC REPORTS,2015,5:-. |
| APA | Su, Guijin.,Li, Qianqian.,Lu, Huijie.,Zhang, Lixia.,Huang, Linyan.,...&Zheng, Minghui.(2015).Thermal catalytic oxidation of octachloronaphthalene over anatase TiO2 nanomaterial and its hypothesized mechanism.SCIENTIFIC REPORTS,5,-. |
| MLA | Su, Guijin,et al."Thermal catalytic oxidation of octachloronaphthalene over anatase TiO2 nanomaterial and its hypothesized mechanism".SCIENTIFIC REPORTS 5(2015):-. |
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。