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Appl. Sci. 2016, 6(12), 417; doi:10.3390/app6120417

Stabilization of Iron (Micro)Particles with Polyhydroxybutyrate for In Situ Remediation Applications

1
Department of Chemistry, Università degli Studi di Roma La Sapienza, Piazzale Aldo Moro 5, Rome 00185, Italy
2
Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117 Liberec 1, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Raed Abu-Reziq
Received: 4 October 2016 / Revised: 5 December 2016 / Accepted: 6 December 2016 / Published: 9 December 2016
(This article belongs to the Special Issue Polyhydroxyalkanoates and Their Applications)
View Full-Text   |   Download PDF [3048 KB, uploaded 9 December 2016]   |  

Abstract

Groundwater is an extremely important resource that may, however, contain a variety of toxic and bioaccumulative contaminants. Traditional “Pump and Treat” technologies for treating contaminated groundwater are no longer time- or cost-effective; therefore, new technologies are needed. In this work, we synthesized core–shell materials of micrometric dimensions based on the interaction of iron particles (the core) and fermentable biopolymers such as polyhydroxybutyrate (PHB, the surrounding shell) to be used in permeable reactive barriers for the removal of chlorinated pollutants from contaminated groundwater. The materials were prepared by precipitation techniques that allowed stable preparations to be obtained, whose chemico-physical properties were thoroughly characterized by scanning electron microscopy, porosimetry, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analyses, disc centrifuge analysis, and dynamic light scattering. The properties of the prepared materials are very promising, and may enhance the performance of permeable reactive barriers towards chlorinated compounds. View Full-Text
Keywords: colloidal stability; zero-valent iron; polyhydroxybutyrate; biopolymer colloidal stability; zero-valent iron; polyhydroxybutyrate; biopolymer
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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. (CC BY 4.0).

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MDPI and ACS Style

Chronopoulou, L.; Palocci, C.; Valentino, F.; Pettiti, I.; Wacławek, S.; Černík, M.; Petrangeli Papini, M. Stabilization of Iron (Micro)Particles with Polyhydroxybutyrate for In Situ Remediation Applications. Appl. Sci. 2016, 6, 417.

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