Catalytic destruction of chlorinated aromatic pollutants over mesoporous CuxMg1-xAl2O4 spinel oxides
文献类型：期刊论文
| 作者 | Fan, Yun; Lu, Xianbo; Ni, Yuwen; Zhang, Haijun; Zhu, Meiwen; Li, Yun; Chen, Jiping |
| 刊名 | applied catalysis b-environmental
 |
| 出版日期 | 2011-01-14 |
| 卷号 | 101期号:3-4页码:606-612 |
| 关键词 | Spinel Hexachlorobenzene Polychlorinated dibenzodioxin and dibenzofuran Hydrodechlorination Catalytic formation |
| 英文摘要 | destruction of chlorinated aromatic compounds was carried out over mesoporous cuxmg1-xal2o4 spinel oxides with x=0, 0.2, 0.5 and 0.8, which were prepared by the coprecipitation method. all the catalyst samples were characterized by means of x-ray diffraction (xrd), scanning electron microscopy (sem) and nitrogen adsorption-desorption isotherms. the performances of these catalysts on the decomposition of hexachlorobenzene (hcb) and the catalytic formation of polychlorinated dibenzodioxin and dibenzofuran (pcdd/f) were evaluated in a closed system. the activities of these catalysts for dechlorination of hcb increased with increasing the magnesium content in them. the cu0.2mg0.8al2o4 presented a higher catalytic activity for the hydrodechlorination of hcb than cuo. al2o3, as well as the other cuxmg1-xal2o4 spinels. more than 99% dechlorination efficiency of hcb was achieved at low temperatures (<= 300 degrees c) for a short time (30 min) under air atmosphere over cu0.2mg0.8al2o4 spinet. in comparison to air atmosphere, nitrogen atmosphere seemed to be more beneficial for the dechlorination of hcb with a dechlorination efficiency of 90% at 250 degrees c for 10 min. for the cu0.2mg0.8al2o4 catalyst, the i-teq of pcdd/f formed was 4.5 pg/g, far below the value of 15122.5 pg/g on cuo. the cu0.2mg0.8al2o4 catalyst inhibited the chlorination reaction and enhanced the dechlorination reaction. the catalytic behavior including catalytic dechlorination of hcb and catalytic formation of pcdd/f related to the physical characteristics of cuxmg1-xal2o4 spinel was discussed. crown copyright (c) 2010 published by elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, environmental ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | fly-ash ; metal-oxides ; pcdf formation ; dechlorination ; decomposition ; hexachlorobenzene ; degradation ; temperature ; 1,2-dichlorobenzene ; dibenzofurans |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000287068400051 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142349]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Yun,Lu, Xianbo,Ni, Yuwen,et al. Catalytic destruction of chlorinated aromatic pollutants over mesoporous CuxMg1-xAl2O4 spinel oxides[J]. applied catalysis b-environmental,2011,101(3-4):606-612. |
| APA | Fan, Yun.,Lu, Xianbo.,Ni, Yuwen.,Zhang, Haijun.,Zhu, Meiwen.,...&Chen, Jiping.(2011).Catalytic destruction of chlorinated aromatic pollutants over mesoporous CuxMg1-xAl2O4 spinel oxides.applied catalysis b-environmental,101(3-4),606-612. |
| MLA | Fan, Yun,et al."Catalytic destruction of chlorinated aromatic pollutants over mesoporous CuxMg1-xAl2O4 spinel oxides".applied catalysis b-environmental 101.3-4(2011):606-612. |
入库方式： OAI收割
来源：大连化学物理研究所
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