Nanoscale iron particles

Cao, J., Elliott, D. and Zhang, W. (2005) Perchlorate reduction by nanoscale iron particles. Journal of Nanoparticle Research, 7, 499-506. 

Lin, Y., Weng, C. and Chen, F. (2008) Effective removal of AB24 dye by nano/ micro-size zero-valent iron. Separation and Purification Technology, 64, 26-30. Wang, C.B. and Zhang, W.X. (1997) Synthesizing nanoscale iron particles for rapid and complete dechlorination of TCE and PCBs. Environmental Science and Technology, 31, 2154-2156. 

Liu, Y., Majetich, S.A., Tilton, R.D., Sholl, D.S. and Lowry, G.V. (2005) TCE dechlorination rates, pathways, and efficiency of nanoscale iron particles with different properties. Environmental Science and Technology, 39, 1338—1345. 

Wang C-B, Zhang W-X. Synthesizing nanoscale iron particles for rapid and complete dechlorination of TCE and PCBs. Environ Sci Technol 1997 31 2154-2156. 

Lien H-L, Zhang W-X. Transformation of chlorinated methanes by nanoscale iron particles. J Environ Eng 1999 125 1042-1047. 

In a recent study, Liu et al. (41) used two types of Fe p) particles in exploring the TCE degradation particles synthesized by aqueous phase reduction of ferrous or ferric iron by sodium borohydride (Fe average primary particle size = 30 to 40 nm) and commercially available reactive nanoscale iron particles (RNIP), synthesized by gas phase reduction of iron oxides in hydrogen (Fe average primary particle size = 40 to 60 nm ). Both particles had a Fe(0) core structure with similar specific surface areas (30 m /g). The shell structure for Fe was found to be oxide or oxyhydroxide of some sort while Fe contained Fe304 as the only oxide in the shell. Employed dechlorination reaction conditions included high TCE concentration (limited iron) and low TCE concentration (excess iron). The measured surface area normalized... 

However, in electrokinetic-chemical reduction approach, the nanoscale iron particles are introduced into the contaminant source zone itself, thereby reducing the treatment time. 

Reddy KR, Karri MR. (2007). Electrokinetic delivery of nanoscale iron particles for in-situ remediation of pentachlorophenol-contaminated soils. Proceedings of International Symposium on Geo-Environmental Engineering for Sustainable Development (eds. BP Han, LM Hu, HH Liu, XQ Zhu), October 22-24,2007, Xuzhou, China, pp. 74—79. 

Zhang WX. (2003). Nanoscale iron particles for environmental remediation An overview. Journal of Nanoparticles Research 5 323-332. 

Zhang W-X. Nanoscale iron particles for environmental remediation an overview. J Nanopart Res 2003 5 323-32, 37. 

Reddy KR, Darko-Kagya K, Cameselle C (2011) Elec-trokmetic-enhanced transport of lactate-modified nanoscale iron particles for degradation of dinitrotoluene in clayey soils. Sep Purif Technol 79(2) 230-237... 

Module 1 Synthesis of nanoscale bimetallic iron particles. The module has been created according to existing literatirre. Nanoscale iron particles are synthesized by mixing NaBH4 (0.25 M) and FeCl3 6H20 (0.045 M) solutiorrs (1 1 volitme ratio) (8). The reaction is as follows ... 

Module 1 Synthesis of Palladized Nanoscale Iron Particles Module 2 TCE Degradation with Palladized Nanoscale Iron Particles Module 3 Use of Engineered Nanospheres for Lead Complexation Lab To imderstand chemical synthesis for environmental remediation To apply nanotechnology for groimdwater remediation To determine the effectiveness of novel nanospheres for lead complexation... 

Module 1. Synthesis of Palladized Nanoscale Iron Particles... 

Note It is important to use fresh palladized nanoscale iron particles in subsequent TCE degradation experiments. Therefore, Modules 1 and 2 are designed as a one day lab exercise.)... 

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