Journal of Nanoparticle Research

, Volume 12, Issue 2, pp 449–456 | Cite as

Fe–Ni Nanoparticles supported on carbon nanotube-co-cyclodextrin polyurethanes for the removal of trichloroethylene in water

  • Rui W. M. Krause
  • Bhekie B. Mamba
  • Langelihle N. Dlamini
  • Shane H. Durbach
Research Paper

Abstract

Nanoscale bimetallic particles of nickel on iron were supported on carbon nanotubes and then co-polymerized with β-cyclodextrin (CNTs/CD) and the resulting polymers applied to the degradation of pollutants in water. The bimetallic nanoparticles (BMNPs) were first embedded on functionalized carbon nanotubes (f-CNTs) before being copolymerized with beta cyclodextrin (β-CD) and hexamethylene diisocyanate (HMDI) forming a water-insoluble polyurethane. The particle size and distribution of BMNPs were determined by Transmission Electron Microscopy (TEM), and the surface area was determined by using the Brunauer–Emmett–Teller (BET) method. Energy dispersive X-ray spectroscopy (EDXS) was used to confirm the formation of the BMNPs. Degradation of trichloroethylene (TCE) as a model pollutant was studied and more than 98% reduction in TCE was achieved by the polymers. Polymers with the BMNPs maintained their efficiency in degrading TCE after several cycles compared to metal-free polymers. The degradation was monitored by using gas chromatography-mass spectrometry (GC-MS), while the production of chlorides was verified by using ion chromatography (IC). Atomic absorption spectroscopy (AAS) was employed to determine the possible leaching of the BMNPs from the polymer, and confirmed to be extremely low.

Keywords

Bimetallic nanoparticles Carbon nanotubes Cyclodextrin Trichloroethylene Water resources Environment 

References

  1. Bull RJ, Brinbaum LS, Cantor KP, Rose JB, Butterworth BE, Pegram R, Tuomisto J (1995) Water chlorination: essential process or cancer hazard? Fundam Appl Toxicol 28:155–156CrossRefPubMedGoogle Scholar
  2. Chen YK, Chu A, Cook J, Green MLH, Harris PJF, Heesom R, Humphries M, Sloan J, Tsang SC, Turner JFC (1997) Synthesis of carbon nanotubes containing metal oxides and metals of the d-block and f-block transition metals and related studies. J Mater Chem 7:545–549CrossRefGoogle Scholar
  3. Croft AP, Bartsch R (1983) Synthesis of chemically modified cyclodextrins. Tetrahedron 39:1417–1474CrossRefGoogle Scholar
  4. Easton CJ, Lincoln SF (1999) Modified cyclodextrins: scaffolds and templates for supramolecular chemistry. Imperial College Press. ISBN 1-86094-1443Google Scholar
  5. Ghosh SK, Mandal M, Kundu S, Nath S, Pal T (2004) Bimetallic Pt-Ni nanoparticles can catalyze reduction of aromatic nitro compounds by sodium borohydride in aqueous solution. Appl Catal A Gen 268(1–2):61–66CrossRefGoogle Scholar
  6. Hostetler MJ, Zhong CJ, Yen BKH, Anderegg J, Gross SM, Evans ND, Porter M, Murray RW (1998) Stable, monolayer-protected metal alloy clusters. J Am Chem Soc 120(36):9396–9397CrossRefGoogle Scholar
  7. Kim j-Y, Kim HK, Kim KB (2008) Fabrication and electrochemical properties of carbon nanotube/polypyrrole composite film electrodes with controlled pore size. J Power Sources 176(1):396–402CrossRefGoogle Scholar
  8. Li DQ, Ma M (1999) Nanosponges from inclusion chemistry to water purification technology. Chemtech 35:31–37MathSciNetGoogle Scholar
  9. Lukhele L.P (2008) M.Sc. Dissertation, University of JohannesburgGoogle Scholar
  10. Mhlanga SD, Mamba BB, Krause RW, Malefetse TJ (2007) Removal of organic contaminants from water using nano-sponges cyclodextrin polyurethanes. Chem Technol Biotechnol 82:382–388CrossRefGoogle Scholar
  11. Mohlala MS, Liu XY, Coville NJ (2006) Synthesis of multiwalled carbon nanotubes catalyzed by substituted ferrocenes. J Organometal Chem 691:4768–4772CrossRefGoogle Scholar
  12. Roberts AL, Totten LA, Arnold WA, Cattenot M, Pellarin M, Stievanno L, Renouprez A (1996) Environ Sci Technol 32:3017Google Scholar
  13. Robinson JW, Frame EMS, Frame GM (2005) Undergraduate instrumental analysis. Marcel Dekker, New York, p 175Google Scholar
  14. Rousset JL, Aires F, Bornette F, Cattenot M, Pellarin M, Stievanno L, Renouprez A (2000) Characterization and reactivity of Pd–Pt bimetallic supported catalysts obtained by laser vaporization of bulk alloy. Appl Surf Sci 164:163–168CrossRefADSGoogle Scholar
  15. Salipira KL, Krause RW, Mamba BB, Malefetse TJ, Cele LM, Durbach SH (2008) Cyclodextrin polyurethanes polymerized with multi-walled carbon nanotubes: synthesis and characterization. Mat Chem Phys 111:218–224CrossRefGoogle Scholar
  16. Schrick B, Blough JL, Jones AD, Mallouk TE (2002) Hydrodechlorination of trichloroethylene to hydrocarbons using bimetallic nickel-iron nanoscales. Chem Mater 14(12):5140–5147CrossRefGoogle Scholar
  17. Su C, Puls RW (1999) Kinetics of trichloroethene reduction by zero-valent iron and tin: pretreatment effect, apparent activation energy, and intermediate products. Environ Sci Technol 33:163–168CrossRefGoogle Scholar
  18. Tasis D, Tagmatarchis N, Bianco A, Prato M (2006) Chemistry of carbon nanotubes. Chem Rev 106:1105–1136CrossRefPubMedGoogle Scholar
  19. USEPA Methods (2008) http://www.epa.gov/ogwd/consumer/2ndstandards.html Accessed 8/11/08
  20. Wildgoose GG, Banks CE, Compton RG (2006) Metal nanoparticles and related materials supported on carbon nanotubes: methods and applications. Small 2:182–193CrossRefPubMedGoogle Scholar
  21. Xu J, Dozier A, Bhattacharyya D (2005) Synthesis of nanoscale bimetallic particles in polyelectrolyte membrane matrix for reductive transformation of halogenated organic compounds. J Nanopart Res 7:449–467CrossRefGoogle Scholar
  22. Zhang WX, Wang CB, Lien HL (1998) Treatment of chlorinated organic contaminants with nanoscale bimetallic particles. Catal Today 40(4):387–395CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Rui W. M. Krause
    • 1
  • Bhekie B. Mamba
    • 1
  • Langelihle N. Dlamini
    • 1
  • Shane H. Durbach
    • 1
  1. 1.Department of Chemical TechnologyUniversity of JohannesburgDoornfonteinSouth Africa

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