Preparation of Zero-Valent Iron Nanoparticles and Study of Dispersion

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Zero-valent iron (ZVI) nanoparticles are prepared by wet chemical method, unlike conventional methods, we applied a water-soluble dextrin、CMC and starch in the preparation. The starch serves as a stabilizer and dispersant that prevents the resultant nanoparticles from agglomeration, and characterized by XRD、SEM and USP. Compare the dispersion of particles and particle size in progress of reducing. According to the characterization results, the nanoparticles can be dispersed more efficiently, maintained the activity of it owned and kept the stability longer with the dispersing agent. Based on the results obtained, the starch as a dispersion agent on the preparation of Zero-valent iron (ZVI) nanoparticles is an ideal approach.

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Periodical:

Edited by:

Qi Luo

Pages:

1748-1752

Citation:

Q. W. Ding et al., "Preparation of Zero-Valent Iron Nanoparticles and Study of Dispersion", Applied Mechanics and Materials, Vols. 55-57, pp. 1748-1752, 2011

Online since:

May 2011

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$38.00

[1] S. Choe, Y.Y. Chang and K.Y. Wang, et a1: Kinetics of reductive denitrification by nanoscale zero—valent iron [J]. Chemosphere, Vol. 41 (2000), p.1307.

DOI: https://doi.org/10.1016/s0045-6535(99)00506-8

[2] H.L. Lien and W.X. Zhang: Nanoscale iron particles for complete reduction of chlorinated ethenes. Colloids and Surface, A: Physicochemical and Engineering Aspects, Vol. 191 (2001), p.97.

DOI: https://doi.org/10.1016/s0927-7757(01)00767-1

[3] S.M. Ponder, J.G. Darab and T. E. Mallouk: Remediation of Cr (VI) and Pb (II) aqueous solutions using supported nanoscale zero—valent iron [J]. Environ Sci Technol, Vol. 34 (2000), p.2564.

DOI: https://doi.org/10.1021/es9911420

[4] C.B. Wang and W.X. Zhang: Synthesizing nanoscale iron particles for rapid complete dechlorination of TCE and PCBs [J] . Environ Sci Technol, Vol. 31 (1997), p.2154.

DOI: https://doi.org/10.1021/es970039c

[5] Y. XU and J. Wang: Synthesis of nanometer iron by wet chemistry method and product inspection. Chemical Research and Application, Vol. 21(2009), p.665.

[6] F. He and D.Y. Zhao: Preparation and Characterization of a New Class of Starch-Stabilized Bimetallic Nanoparticles for Degradation of Chlorinated Hydrocarbons in Water [J]. Environ. Sci. Technol, Vol. 39(2005), p.3314.

DOI: https://doi.org/10.1021/es048743y

[7] X. Zhong, D.Y. Zhao, G. PAN: Rapid and complete destruction of perchlorate in water and ion-exchange brine using stabilized zero-valent iron nanoparticles[M]. Water Research, Vol. 41 (2007), p.3497.

DOI: https://doi.org/10.1016/j.watres.2007.05.049