Degradation of one-side fully-chlorinated 1,2,3,4-tetrachloronaphthalene over Fe-Al composite oxides and its hypothesized reaction mechanism
文献类型：期刊论文
| 作者 | Lu, Huijie; Gao, Lirong; Liu, Guorui; Liu, Wenbin; Liu, Yalu; Zheng, Minghui; Su, Guijin; Li, Qianqian; Pan, Wenxiao |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2017-05-16 |
| 卷号 | 7期号:29页码:17577-17585 |
| 英文摘要 | The degradation of 1,2,3,4-tetrachloronaphthalene (CN-27) featuring a one-side fully-chlorinated aromatic ring, was evaluated over three of the prepared rod-like Fe-Al composite oxides (FeAl-1, FeAl-5 and FeAl-10). The results showed that their reactive activities were in the order of FeAl-5 approximate to FeAl-10 >> FeAl-1, which could be attributed to their different pore structural properties and reactive sites caused by the different phase interaction between iron species and the gamma-Al2O3. The generation of trichloronaphthalenes (1,2,3-TrCN and 1,2,4-TrCN, i.e. CN-13 and CN-14), dichloronaphthalenes (1,2-DiCN, 1,3-DiCN, 1,4-DiCN and 2,3-DiCN, i.e. CN-3, CN-4, CN-5 and CN-10) and monochloronaphthalenes (1-MoCN and 2-MoCN, i.e. CN-1 and CN-2) suggested the occurrence of successive hydrodechlorination reactions. The amount of CN-14 exceeded that of CN-13 from 71.5% to 77.7% across the three different systems, revealing the preferred occurrence of the first hydrodechlorination step at the b-position. This is dissimilar to the preference at the a-position observed during the dechlorination of octachloronaphthalene (CN-75) over micro/nano Fe3O4. The structural differences between one-side and two-side fully-chlorinated aromatic rings would have a pronounced impact on the reactivity of the chlorine substitution position. The major hydrodechlorination pathway was judged to be CN-27 -> CN-14 -> CN-4 -> CN-2. Additionally, the detected 1,2,3,4,6-pentachloronaphthalene (CN-50) and 1,2,4,6/7-tetrachloronaphthalenes (CN-33/34) suggested the reverse chlorination reaction also happened while the hydrodechlorination reaction was occurring. The C-Cl bond dissociation energies (BDEs) of the parent and daughter polychlorinated naphthalene (PCN) congener were calculated using density functional theory (DFT), to achieve a deeper understanding of a different product yield distribution. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39283]  |
| 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 | Lu, Huijie,Gao, Lirong,Liu, Guorui,et al. Degradation of one-side fully-chlorinated 1,2,3,4-tetrachloronaphthalene over Fe-Al composite oxides and its hypothesized reaction mechanism[J]. RSC ADVANCES,2017,7(29):17577-17585. |
| APA | Lu, Huijie.,Gao, Lirong.,Liu, Guorui.,Liu, Wenbin.,Liu, Yalu.,...&Pan, Wenxiao.(2017).Degradation of one-side fully-chlorinated 1,2,3,4-tetrachloronaphthalene over Fe-Al composite oxides and its hypothesized reaction mechanism.RSC ADVANCES,7(29),17577-17585. |
| MLA | Lu, Huijie,et al."Degradation of one-side fully-chlorinated 1,2,3,4-tetrachloronaphthalene over Fe-Al composite oxides and its hypothesized reaction mechanism".RSC ADVANCES 7.29(2017):17577-17585. |
入库方式： OAI收割
来源：生态环境研究中心
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