| 纳米Pd/Fe催化甲醇/水中2,2',4,4'-四溴联苯醚(BDE-47)还原脱溴 |
| |
| 引用本文： | 李长芳,胡勇有,黄国富.纳米Pd/Fe催化甲醇/水中2,2'',4,4''-四溴联苯醚(BDE-47)还原脱溴[J].环境科学学报,2012,32(10):2353-2359. |
| |
| 作者姓名： | 李长芳 胡勇有 黄国富 |
| |
| 作者单位： | 华南理工大学环境科学与工程学院,工业聚集区污染控制与生态修复教育部重点实验室,广州510006 华南理工大学制浆造纸工程国家重点实验室,广州510640 |
| |
| 基金项目： | 国家水体污染控制和治理重大科技专项(No.2009ZX07211-005) |
| |
| 摘 要： | 构建了纳米Pd/Fe催化还原甲醇/水中2,2’,4,4’-四溴联苯醚(BDE-47)反应体系,常压下采用单因素实验系统考察了纳米Pd/Fe催化还原甲醇/水中2,2’,4,4’-四溴联苯醚(BDE-47)的主要影响因素,并分析了BDE-47还原反应的中间产物及终产物.结果表明,纳米Pd/Fe的反应活性随Pd负载率的提高而先升后降;甲醇-水体积比高于50∶50后,BDE-47去除率随甲醇-水体积比升高而降低;在25～40℃内,BDE-47去除率随反应温度的升高而升高,随BDE-47初始浓度的增加而降低,增加纳米Pd/Fe量可提高反应速率;酸性及弱碱性条件有利于BDE-47还原.BDE-47还原主要为脱溴反应,是一个从n溴到(n-1)溴联苯醚的逐步脱溴过程,反应进行90min后,BDE-47分子中溴原子完全被脱除,反应终产物为二苯醚.
|
| 关 键 词： | 2 2’ 4 4’-四溴联苯醚 纳米Pd/Fe 催化还原 甲醇/水 |
| 收稿时间： | 2012/1/11 0:00:00 |
| 修稿时间： | 3/4/2012 12:00:00 AM |
Catalytic debromination of 2,2',4,4'-Tetrabromodiphenylether (BDE-47) by Pd/Fe nanoparticles in methanol/water |
| |
| LI Changfang,HU Yongyou and HUANG Guofu.Catalytic debromination of 2,2'',4,4''-Tetrabromodiphenylether (BDE-47) by Pd/Fe nanoparticles in methanol/water[J].Acta Scientiae Circumstantiae,2012,32(10):2353-2359. |
| |
| Authors: | LI Changfang HU Yongyou and HUANG Guofu |
| |
| Institution: | 1. College of Environmental Science and Engineering, South China University of Technology, the Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006;2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640;1. College of Environmental Science and Engineering, South China University of Technology, the Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006;2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640;1. College of Environmental Science and Engineering, South China University of Technology, the Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006;2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640 |
| |
| Abstract: | |
| |
| Keywords: | 2 2' 4 4'-Tetrabromodiphenylether Pd/Fe nanoparticles catalytic reduction methanol/water |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
