| New insights into the effect of base on the dechlorination of DDT in isopropanol-water over Pd/C catalyst under mild conditions | |
Ma, Xuanxuan; Liu, Sujing; Liu, Ying; Li, Qing ; Gu, Guodong; Xia, Chuanhai
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| 发表期刊 | CHEMICAL ENGINEERING JOURNAL
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| ISSN | 1385-8947 |
| 2018-11-01 | |
| 卷号 | 351页码:756-765 |
| 关键词 | 1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) Hydrodechlorination (HDC) Dehydrochlorination (DHC) Dechlorination Base Pd/C |
| 研究领域 | Engineering |
| DOI | 10.1016/j.cej.2018.06.148 |
| 产权排序 | [Ma, Xuanxuan; Liu, Sujing; Liu, Ying; Xia, Chuanhai] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China; [Li, Qing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China; [Gu, Guodong] Alliance Pharma Inc, 17 Lee Blvd, Malvern, PA 19355 USA |
| 作者部门 | 海岸带生物资源高效利用研究与发展中心 |
| 英文摘要 | Catalytic dechlorination of DDT (1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane) over Pd/C catalyst under mild condition was carried out in 70% isopropanol-water (70/30, v/v). The dechlorination pathway of DDT over Pd/C catalyst and the reason for low dechlorination reactivity of DDT were investigated. It was found that there were three dechlorination pathways of DDT in the presence of NaOH: DDT-DDD-CDPB-DPB-DPE, DDT-DDE-BCPE-CPPE-DPE, and DDT-DDD-BCPE-CPPE-DPE. Notably, DPB, formed through the intermediate DDD molecule after losing two aromatic chlorines, led to the low dechlorination reactivity of DDT over Pd/C catalyst. Meanwhile, base could affect the dechlorination pathways of DDT, and thus influence the dechlorination reactivity of DDT over Pd/C catalyst. When strong bases were added, DDE and DDD were produced from the dehydrochlorination and hydrodechlorination of DDT, respectively. Yet, only DDD was formed when weak bases were added. When more NaOH was added, the dechlorination reactivity of DDT was apparently improved. And, NaOH addition also advanced formation of DDE, and affected the dechlorination pathways of DDT over Pd/C catalyst. On the basis of these results, we propose that DDT can be dechlorinated rapidly by means of altering the formation of DDE and DDD. |
| 文章类型 | Article |
| 资助机构 | Cultivation Plan of Superior Discipline Talent Teams of Universities in Shandong Province: "the Coastal Resources and Environment team for Blue-Yellow Area" ; Natural Science Foundation of Shandong Province of China [ZR2017BD029] ; Ph.D. Programs Foundation of Ludong University [LA2016010, LB2016039] ; State Key Laboratory of Environmental Chemistry and Ecotoxicology, and Research Center for Eco-Environmental Sciences, CAS [KF2017-12] ; National Natural Science Foundation of China [21377162] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ZERO-VALENT IRON ; LIQUID-PHASE HYDRODECHLORINATION ; ENHANCED DEGRADATION ; CONTAMINATED SOIL ; RANEY-NI ; SYSTEM ; CHLOROPHENOLS ; NANOPARTICLES ; METABOLITES ; REMOVAL |
| 研究领域[WOS] | Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:000444000000078 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24557 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 作者单位 | 1.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China; 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China; 3.Alliance Pharma Inc, 17 Lee Blvd, Malvern, PA 19355 USA |
| 推荐引用方式 GB/T 7714 | Ma, Xuanxuan,Liu, Sujing,Liu, Ying,et al. New insights into the effect of base on the dechlorination of DDT in isopropanol-water over Pd/C catalyst under mild conditions[J]. CHEMICAL ENGINEERING JOURNAL,2018,351:756-765. |
| APA | Ma, Xuanxuan,Liu, Sujing,Liu, Ying,Li, Qing,Gu, Guodong,&Xia, Chuanhai.(2018).New insights into the effect of base on the dechlorination of DDT in isopropanol-water over Pd/C catalyst under mild conditions.CHEMICAL ENGINEERING JOURNAL,351,756-765. |
| MLA | Ma, Xuanxuan,et al."New insights into the effect of base on the dechlorination of DDT in isopropanol-water over Pd/C catalyst under mild conditions".CHEMICAL ENGINEERING JOURNAL 351(2018):756-765. |
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