开发用于脱氯反应的活性钯/铁双金属纳米管。

Journal of Materials Chemistry Pub Date : 2011-07-28 Epub Date: 2011-06-11 DOI:10.1039/c1jm11435b
Elsayed M Zahran, Dibakar Bhattacharyya, Leonidas G Bachas
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引用次数: 0

摘要

我们描述了一种基于钯/铁的新型双金属纳米管的合成和特性,并证明了它们在多氯联苯 PCB 77 的脱氯过程中的功效。在环境条件下,采用一种简单的技术,在涂有 PVP 的聚碳酸酯膜的孔隙中进行无电解沉积,制备出了不同直径的一维铁金属纳米管。通过将 PC 膜安装在 U 型反应管的两半之间,实现了纳米管沿孔壁的纵向成核。透射电子显微镜、扫描电子显微镜、电感耦合等离子体原子发射光谱和 X 射线粉末衍射光谱对 Pd/Fe 纳米管的组成、形态和结构进行了表征。制备的钯/铁双金属纳米管被用于 3,3',4,4'-四氯联苯(PCB 77)的脱氯。与 Pd/Fe 纳米粒子相比,Pd/Fe 纳米管对 PCB 的脱氯效率更高、速度更快。
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Development of reactive Pd/Fe bimetallic nanotubes for dechlorination reactions.

We described the synthesis and characterization of a new class of bimetallic nanotubes based on Pd/Fe and demonstrated their efficacy in the dechlorination of PCB 77, a polychlorinated biphenyl. Onedimensional iron metal nanotubes of different diameters were prepared by electroless deposition within the pores of PVP-coated polycarbonate membranes using a simple technique under ambient conditions. The longitudinal nucleation of the nanotubes along the pore walls was achieved by mounting the PC membrane between two halves of a U-shape reaction tube. The composition, morphology, and structure of the Pd/Fe nanotubes were characterized by transmission electron microscopy, scanning electron microscopy, inductively coupled plasma-atomic emission spectroscopy, and X-ray powder diffraction spectroscopy. The as-prepared Pd/Fe bimetallic nanotubes were used in dechlorination of 3,3',4,4'-tetrachlorobiphenyl (PCB 77). In comparison with Pd/Fe nanoparticles, the Pd/Fe nanotubes demonstrated higher efficiency and faster dechlorination of the PCB.

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来源期刊
Journal of Materials Chemistry
Journal of Materials Chemistry 工程技术-材料科学:综合
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审稿时长
1.5 months
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