| 纳米钯/铁双金属颗粒对一氯乙酸的脱氯 |
| |
| 引用本文： | 陈超,王向宇,常影,刘惠玲. 纳米钯/铁双金属颗粒对一氯乙酸的脱氯[J]. 材料科学与工艺, 2009, 0(4): 535-538 |
| |
| 作者姓名： | 陈超 王向宇 常影 刘惠玲 |
| |
| 作者单位： | 哈尔滨工业大学市政环境工程学院;城市水资源与水环境国家重点实验室; |
| |
| 基金项目： | 城市水资源与水环境国家重点实验室资助项目(2008DX06); 国家自然科学基金创新团队资助项目(50821002) |
| |
| 摘 要： | 为了提高零价铁对氯代有机物还原脱氯的性能,采用还原沉淀法制备了纳米钯/铁双金属颗粒.利用X射线衍射(XRD)、X射线荧光光谱(XRF)、扫描电子显微镜(SEM)、透射电镜(TEM)、以及BET-N2比表面积法对纳米钯/铁双金属颗粒进行了表征.结果表明,制备的纳米钯/铁双金属颗粒中Fe主要以α-Fe0形式存在.纳米钯/铁双金属颗粒的直径约为30～50nm,比表面积约51m2/g.纳米钯/铁双金属颗粒对一氯乙酸还原脱氯的脱氯率是还原铁粉和纳米铁粉对一氯乙酸还原脱氯的脱氯率的7.9倍和1.7倍.
|
| 关 键 词： | 纳米钯/铁双金属颗粒 还原脱氯 一氯乙酸 |
Dechlorination of monochloroacetic acid with nanoscale Pd/Fe bimetallic particles |
| |
| CHEN Chao,,WANG Xiang-yu,CHANG Ying,LIU Hui-ling. Dechlorination of monochloroacetic acid with nanoscale Pd/Fe bimetallic particles[J]. Materials Science and Technology, 2009, 0(4): 535-538 |
| |
| Authors: | CHEN Chao WANG Xiang-yu CHANG Ying LIU Hui-ling |
| |
| Affiliation: | CHEN Chao1,2,WANG Xiang-yu1,CHANG Ying1,LIU Hui-ling1,2(1.School of Municipal , Environmental Engineering,Harbin Institute of Technology,Harbin150090,China,2.State Key Laboratory of Urban Water Resource , Environment,China) |
| |
| Abstract: | Nanoscale palladized iron(Pd/Fe) bimetallic particles were prepared by reductive deposition method in order to increase dechlorination efficiencies of bimetallic particles.The particles were characterized by X-ray diffraction(XRD) ,X-ray fluorescence(XRF) ,scanning electron microscope(SEM) ,transmission electron microscope(TEM) and Brunauer-Emmett-Teller-nitrogen(BET-N2) method.Data obtained from those methods indicate that α-Fe0 exists in nanoscale Pd/Fe bimetallic particles.The particle size and specific surface area of particles are 30-50 nm and 51 m2 /g,respectively.Dechlorination efficiency of MCAA with nanoscale Pd/Fe bimetallic particles is 7.9 and 1.7 times higher than that of nanoscale Fe and reductive Fe,respectively. |
| |
| Keywords: | nanoscale Pd/Fe bimetallic particles dechlorination monochloroacetic acid |
| 本文献已被 CNKI 等数据库收录！ |
|
