Table of Contents Author Guidelines Submit a Manuscript
Journal of Nanomaterials
Volume 2014, Article ID 678489, 7 pages
http://dx.doi.org/10.1155/2014/678489
Research Article

Preparation and Characterization of Lecithin-Nano Ni/Fe for Effective Removal of PCB77

School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China

Received 5 February 2014; Revised 14 April 2014; Accepted 14 April 2014; Published 30 April 2014

Academic Editor: Fan Dong

Copyright © 2014 Shu Ding et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A kind of combined material (named lecithin-nano Ni/Fe) that is composed of lecithin and nanoscale Ni/Fe bimetal was synthesized via microemulsion method. The efficacy of such an original material was tested using 3,3′,4,4′-tetrachlorobiphenyl (PCB77) as target pollutant. A microemulsion system was optimized as template to prepare Ni/Fe nanoparticles, which was followed by an insite loading process with the deposition of lecithin carrier. It was proved by the characterization that subtle Ni/Fe nanoparticles can be uniformly dispersed and closely combined with lecithin carrier. Lecithin was an environmentally compatible biosurfactant that acted as both the component of the microemulsion and the functional material to accumulate organic contaminants. It was expected that the combined material can integrate the functions of lecithin and bimetal. The effectiveness was exhibited through the more rapid and sufficient removal of PCB77 by lecithin-nano Ni/Fe than that by blank carrier. Although requiring further improvement, the constitution of lecithin-nano Ni/Fe was a beneficial attempt to acquire the synergistic effect for intensified removal of environmental contaminants. It was promising that the original system and convenient method described in this work will facilitate the development of the organic-inorganic combined materials.