Influence of metal oxides on PCDD/Fs formation from pentachlorophenol
文献类型：期刊论文
| 作者 | Qian, Y; Zheng, MH; Liu, WB; Ma, XD; Zhang, B |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2005 |
| 卷号 | 60期号:7页码:951-958 |
| 关键词 | PCDD/Fs formation precursor PCP inhibition |
| 英文摘要 | Chlorophenols (ClPhs) are considered as important precursors for PCDD/Fs formation. The influences of series of metal oxides including MgO, Al2O3, CaO, BaO, TiO2, V2O5, MnO2, Fe2O3, Co3O4, CuO, Ag2O, ZnO, HgO, SnO, PbO, La2O3, CeO2, and Eu2O3 on PCDD/Fs formation from pentachlorophenol (PCP) were investigated in a laboratoryscale reactor. The results indicated that most of the above metal oxides have obvious suppressing effects on the total amount of PCDD/Fs formation from precursor PCP except for CuO, ZnO, MnO2, TiO2 and Co3O4 with promotion effects at 280 degrees C for 2 h. Although MgO, Al(2)o(3), Fe2O3, PbO, La2O3 and Eu2O3 could reduce the amount of octachlorinated dibenzo-p-dioxin (OCDD), they promote the formation of more toxic 1,2,3,4,6,7,8-HpCDD at the same time. The total suppressing efficiencies of several metal oxides including CaO, BaO, PbO, Ag2O, HgO and SnO which have lower Z/r (charge to radius ratio) < 2 are all over 90%. The theories of generalized acid-base and atomic parameter (Z/r) were used to speculate the effecting mechanisms. The factors including time and temperature on suppressing efficiencies of CaO, BaO and PbO have also been studied in the present paper. The results showed that the total suppressing efficiencies of CaO, BaO and PbO increase with the increase of heated time and temperature. (c) 2005 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000231300200015 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23183]  |
| 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 | Qian, Y,Zheng, MH,Liu, WB,et al. Influence of metal oxides on PCDD/Fs formation from pentachlorophenol[J]. CHEMOSPHERE,2005,60(7):951-958. |
| APA | Qian, Y,Zheng, MH,Liu, WB,Ma, XD,&Zhang, B.(2005).Influence of metal oxides on PCDD/Fs formation from pentachlorophenol.CHEMOSPHERE,60(7),951-958. |
| MLA | Qian, Y,et al."Influence of metal oxides on PCDD/Fs formation from pentachlorophenol".CHEMOSPHERE 60.7(2005):951-958. |
入库方式： OAI收割
来源：生态环境研究中心
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