Removal of trichloroethylene from water by cellulose acetate supported bimetallic Ni/Fe nanoparticles.

In this study, cellulose acetate (CA) supported Ni/Fe nanoparticles were prepared and the ability of these nanoparticles to remove trichloroethylene (TCE) from water was studied. The effects of TCE reduction by the nanoparticles and sorption by the CA support were accounted for separately in the model. CA supported post-coated Ni/Fe nanoparticles were used to investigate the effect of metal particle composition on the observed reduction rate constant. The results show that the metal mass normalized observed reduction rate constant was proportional to the Ni content in the post-coated Ni/Fe nanoparticles in the range of 0-14.3 wt.%. This constant reached a maximum between 14.3 and 21.4 wt.% and decreased with further increase in Ni content. CA supported co-reduced Ni/Fe bimetallic nanoparticles gave poorer performance compared to CA supported post-coated Ni/Fe bimetallic nanoparticles at the same Ni content in Ni/Fe nanoparticles.

[1]  F. Figueras,et al.  Bimetallic palladium catalysts: influence of the co-metal on the catalyst performance , 2001 .

[2]  S. Haram,et al.  Some aspects of the role of surfactants in the formation of nanoparticles , 1998 .

[3]  Thomas E. Mallouk,et al.  Delivery Vehicles for Zerovalent Metal Nanoparticles in Soil and Groundwater , 2004 .

[4]  J. Khim,et al.  Rapid reductive destruction of hazardous organic compounds by nanoscale Fe0. , 2001, Chemosphere.

[5]  J. Hughes,et al.  Designing Pd-on-Au bimetallic nanoparticle catalysts for trichloroethene hydrodechlorination. , 2005, Environmental science & technology.

[6]  Rosy Muftikian,et al.  A method for the rapid dechlorination of low molecular weight chlorinated hydrocarbons in water , 1995 .

[7]  Hsing-Lung Lien,et al.  Nanoscale iron particles for complete reduction of chlorinated ethenes , 2001 .

[8]  T. Mallouk,et al.  Remediation of Cr(VI) and Pb(II) aqueous solutions using supported, nanoscale zero-valent iron , 2000 .

[9]  R. Larson,et al.  Dechlorination of pentachloroethane by commercial Fe and ferruginous smectite. , 2002, Chemosphere.

[10]  H. Jones,et al.  Enhanced reduction of chromate and PCE by pelletized surfactant-modified zeolite/zerovalent iron , 1999 .

[11]  C. H. Bartholomew,et al.  The synthesis and characterization of iron colloid catalysts in inverse micelle solutions , 1997 .

[12]  Wei-xian Zhang,et al.  Synthesizing Nanoscale Iron Particles for Rapid and Complete Dechlorination of TCE and PCBs , 1997 .

[13]  S. C. Wu,et al.  Feasibility of using metals to remediate water containing TCE. , 2001, Chemosphere.

[14]  W. McNab,et al.  Palladium-catalyzed reductive dehalogenation of dissolved chlorinated aliphatics using electrolytically-generated hydrogen , 1998 .

[15]  R. M. Schlosser,et al.  Field application of palladized iron for the dechlorination of trichloroethene , 2000 .

[16]  M. Reinhard,et al.  Hydrodehalogenation of 1- to 3-Carbon Halogenated Organic Compounds in Water Using a Palladium Catalyst and Hydrogen Gas , 1999 .

[17]  Hsing-Lung Lien,et al.  Treatment of chlorinated organic contaminants with nanoscale bimetallic particles , 1998 .

[18]  Thomas E. Mallouk,et al.  Hydrodechlorination of Trichloroethylene to Hydrocarbons Using Bimetallic Nickel-Iron Nanoparticles , 2002 .

[19]  J. Gotpagar,et al.  Reductive dehalogenation of trichloroethylene using zero-valent iron , 1997 .

[20]  M. Reinhard,et al.  In-situ destruction of chlorinated hydrocarbons in groundwater using catalytic reductive dehalogenation in a reactive well: testing and operational experiences , 2000 .

[21]  S. C. Wu,et al.  The enhancement methods for the degradation of TCE by zero-valent metals. , 2000, Chemosphere.

[22]  Cumaraswamy Vipulanandan,et al.  Microemulsion and solution approaches to nanoparticle iron production for degradation of trichloroethylene , 2003 .

[23]  S. Lo,et al.  Dechlorination of trichloroethylene in aqueous solution by noble metal-modified iron. , 2004, Journal of hazardous materials.

[24]  Robert W. Gillham,et al.  Dechlorination of Trichloroethene in Aqueous Solution Using Fe0 , 1996 .