The effects of vacuum annealing on the structure and surface chemistry of iron nanoparticles
Source abstract
Abstract
In order to increase the longevity of contaminant retention, a method is sought to improve the corrosion resistance of iron nanoparticles (INP) used for remediation of contaminated water and thereby extend their industrial lifetime. A multi-disciplinary approach was used to investigate changes induced by vacuum annealing (<5 × 10−8 mbar) at 500 °C on the bulk and surface chemistry of INP. The particle size did not change significantly as a result of annealing but the surface oxide thickness decreased from an average of 3–4 nm to 2 nm. BET analysis recorded a decrease in INP surface area from 19.0 to 4.8 m2 g−1, consistent with scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations which indicated the diffusion bonding of previously discrete particles at points of contact. X-ray diffraction (XRD) confirmed that recrystallisation of the metallic cores had occurred, converting a significant fraction of poorly crystalline iron to bcc α-Fe and Fe2B phases. X-ray photoelectron spectroscopy (XPS) indicated a change in the surface oxide stoichiometry from magnetite (Fe3O4) towards wustite (FeO) and the migration of boron and carbon to the particle surfaces. The improved core crystallinity and the presence of passivating impurity phases at the INP surfaces may act to improve the corrosion resistance and reactive lifespan of the vacuum annealed INP for environmental applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Environmental remediation with nanomaterials · Nanoparticles: synthesis and applications · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Allen GC, Curtis MT, Hooper AJ, Tucker MJ (1974) X-ray photoelectron-spectroscopy of iron-oxygen systems. J Chem Soc Dalton Trans 14:1525–153010.1039/DT9740001525 ↗
2. Alowitz MJ, Scherer M (2002) Kinetics of nitrate, nitrite, and Cr(VI) reduction by iron metal. Environ Sci Technol 36:299–30610.1021/es011000h ↗
3. Bigg T, Judd SJ (2000) Zero-valent iron for water treatment. Environ Technol 21:661–67010.1080/09593332108618077 ↗
4. Bonin PML, Jedral W, Odziemkowski MS, Gillham RW (2000) Electrochemical and Raman spectroscopic studies of the influence of chlorinated solvents on the corrosion behaviour of iron in borate buffer and in simulated groundwater. Corros Sci 42:1921–193910.1016/S0010-938X(00)00027-5 ↗
5. Burke AR, Brown CR, Bowling WC et al (1988) Ignition mechanism of the titanium boron pyrotechnic mixture. Surf Interface Anal 11:353–35810.1002/sia.740110614 ↗
6. Callister WD (2003) Materials science and engineering: an introduction. Wiley International Press, NJ
7. Cao JS, Elliott D, Zhang WJJ (2005) Perchlorate reduction by nanoscale iron particles. J Nanopart Res 7:499–50610.1007/s11051-005-4412-x ↗
8. Cheng R, Wang JL, Zhang WX (2007) Comparison of reductive dechlorination of p-chlorophenol using Fe-0 and nanosized Fe-0. J Hazard Mater 144:334–33910.1016/j.jhazmat.2006.10.032 ↗
9. Choe S, Chang YY, Hwang KY, Khim J (2000) Kinetics of reductive denitrification by nanoscale zero-valent iron. Chemosphere 41:1307–131110.1016/S0045-6535(99)00506-8 ↗
10. Choi Ch, Dong X, Kim B (2001) Microstructure and magnetic properties of Fe nanoparticles synthesized by chemical vapor condensation. Mater Trans 42:2046–204910.2320/matertrans.42.2046 ↗
11. Cornell RM, Schwertmann U (2003) The iron oxides: structure, properties, reactions, occurrences and uses. Wiley-VCH, Weinheim10.1002/3527602097 ↗
12. Dehlinger AS, Pierson JF, Roman A, Ph Bauer (2003) Properties of iron boride films prepared by magnetron sputtering. Surf Coat Technol 174–175:331–33710.1016/S0257-8972(03)00399-2 ↗
13. Elihn K, Otten F, Boman M et al (1999) Nanoparticle formation by laser-assisted photolysis of ferrocene. Nanostruct Mater 12:79–8210.1016/S0965-9773(99)00070-7 ↗
14. Elliott DW, Zhang W (2001) Field assessment of nanoscale biometallic particles for groundwater treatment. Environ Sci Technol 35:4922–492610.1021/es0108584 ↗
15. Glazier R, Venkatakrishnan R, Gheorghiu F et al (2003) Nanotechnology takes root. Civil Eng 73:64–69
16. Grovesnor AP, Kobe BA, Biesinger MC, McIntyre NS (2004) Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in iron compounds. Surf Interface Anal 36:1564–157410.1002/sia.1984 ↗
17. Joo SH, Feitz AJ, Sedlak DL, Waite TD (2005) Quantification of the oxidizing capacity of nanoparticulate zero-valent iron. Environ Sci Technol 39:1263–126810.1021/es048983d ↗
18. Kanel SR, Manning B, Charlet L, Choi H (2005) Removal of arsenic(III) from groundwater by nanoscale zero-valent iron. Environ Sci Technol 39:1291–129810.1021/es048991u ↗
19. Karlsson A, Deppert K, Wacaser A et al (2005) Size-controlled nanoparticles by thermal cracking of iron pentacarbonyl. Appl Phys A A80:1579–158310.1007/s00339-004-2987-1 ↗
20. Koifman IS, Egorshina TV, Laskova GV (1969) X-ray diffraction analysis of borocementite. Metalloved Term Obrab Metall 2:59–60
21. Krämer A, Leutenecker R, Aubertin F, Gonser U (1994) Amorphization of armco iron by boron implantation and subsequent crystallization by heat-treatment—a GEMS, X-ray and ultramicrohardness study. Hyperfine Interact 94:2367–237210.1007/BF02063790 ↗
22. Kuhn LT, Bojesen A, Timmermann L et al (2002) Structural and magnetic properties of core-shell iron-iron oxide nanoparticles. J Phys Condens Matter 14:13551–1356710.1088/0953-8984/14/49/311 ↗
23. Li XQ, Zhang WX (2007) Sequestration of metal cations with zerovalent iron nanoparticles—a study with high resolution X-ray photoelectron spectroscopy (HR-XPS). J Phys Chem 111:6939–6946
24. Lien HL, Zhang WX (1999) Transformation of chlorinated methanes by nanoscale iron particles. J Environ Eng 125:1042–104710.1061/(ASCE)0733-9372(1999)125:11(1042) ↗
25. Lien HL, Zhang WX (2001) Nanoscale iron particles for complete reduction of chlorinated ethenes. Colloids Surf A 191:97–10510.1016/S0927-7757(01)00767-1 ↗
26. Liu Y, Majetich SA, Tilton RD et al (2005) TCE dechlorination rates, pathways, and efficiency of nanoscale iron particles with different properties. Environ Sci Technol 39:1338–134510.1021/es049195r ↗
27. Lucci A, Venturello G (1971) Comments on the condition of boron in α-iron. Scripta Metall 5:17–2410.1016/0036-9748(71)90218-3 ↗
28. McIntyre NS, Zetaruk DG (1977) X-ray photoelectron spectroscopic studies of iron-oxides. Anal Chem 49:1521–152910.1021/ac50019a016 ↗
29. Merlin J, Merle P, Garnier S et al (2004) Experimental determination of the carbon solubility limit in ferritic steels. Metal Mater Trans A 35A:1655–166110.1007/s11661-004-0074-z ↗
30. Miehr R, Tratnyek PG, Bandstra JZ et al (2004) Diversity of contaminant reduction reactions by zerovalent iron: role of the reductate. Environ Sci Technol 38:139–14710.1021/es034237h ↗
31. Mondal K, Jegadeesan G, Lalvani SB (2004) Removal of selenate by Fe and NiFe nanosized particles. Ind Eng Chem Res 43:4922–493410.1021/ie030715l ↗
32. Moura FCC, Oliveira GC, Araujo MH et al (2005) Formation of highly reactive species at the interface Fe degrees-iron oxides particles by mechanical alloying and thermal treatment: potential application in environmental remediation processes. Chem Lett 34:1172–117310.1246/cl.2005.1172 ↗
33. Nurmi JT, Tratnyek PG, Sarathy V et al (2005) Characterization and properties of metallic iron nanoparticles: spectroscopy, electrochemistry, and kinetics. Environ Sci Technol 39:1221–123010.1021/es049190u ↗
34. Ponder SM, Darab JG, Mallouk TE (2000) Remediation of Cr(VI) and Pb(II) aqueous solutions using supported, nanoscale zero-valent iron. Environ Sci Technol 34:2564–256910.1021/es9911420 ↗
35. Ponder SM, Darab JG, Bucher J et al (2001) Surface chemistry and electrochemistry of supported zerovalent iron nanoparticles in the remediation of aqueous metal contaminants. Chem Mater 13:479–48610.1021/cm000288r ↗
36. Riba O, Scott TB, Ragnarsdottir KV, Allen GC (2008) Reaction mechanism of uranyl in the presence of zero-valent iron nanoparticles. Geochim Cosmochim Acta 72:4047–405710.1016/j.gca.2008.04.041 ↗
37. Schrick B, Blough JL, Jones AD, Mallouk TE (2002) Hydrodechlorination of trichloroethylene to hydrocarbons using bimetallic nickel-iron nanoparticles. Chem Mater 14:5140–514710.1021/cm020737i ↗
38. Scott TB (2005) Sorption of uranium onto iron bearing minerals. PhD Thesis, University of Bristol
39. Scott TB, Allen GC, Heard PJ, Randall MG (2005) Reduction of U(VI) to U(IV) on the surface of magnetite. Geochim Cosmochim Acta 69:5639–564610.1016/j.gca.2005.07.003 ↗
40. Shimotori T, Nuxoll EE, Cussler EL, Arnold WA (2004) A polymer membrane containing Fe0 as a contaminant barrier. Environ Sci Technol 38:2264–227010.1021/es034601c ↗
41. Signorini L, Pasquini L, Savini L et al (2003) Size-dependent oxidation in iron/iron oxide core-shell nanoparticles. Phys Rev B 68:19542310.1103/PhysRevB.68.195423 ↗
42. Sun YP, Li XQ, Cao J et al (2006) Characterization of zero-valent iron nanoparticles. Adv Colloid Interface Sci 120:47–5610.1016/j.cis.2006.03.001 ↗
43. Valet P, Carel C (1989) The Fe-O (iron-oxygen) phase diagram in the range of the nonstoichiometric monoxide and magnetite at the Fe-rich limit: reduction diagrams. J Phase Equilib 10(3):209–218
44. Wang CB, Zhang WX (1997) Synthesizing nanoscale iron particles for rapid and complete dechlorination of TCE and PCBs. Environ Sci Technol 31:2154–215610.1021/es970039c ↗
45. Wriedt HA (1991) The Fe-O (iron-oxygen) system. J Phase Equilib 12:170–20010.1007/BF02645713 ↗
46. Zaera F (1989) A thermal desorption and X-ray photoelectron spectroscopy study of the surface chemistry of iron pentacarbonyl. J Vac Sci Technol A 7:640–64510.1116/1.575858 ↗
47. Zhang WX (2003) Nanoscale iron particles for environmental remediation: an overview. Nanopart Res 4:323–33210.1023/A:1025520116015 ↗
48. Zhang WX, Wang CB, Lien HL (1998) Treatment of chlorinated organic contaminants with nanoscale bimetallic particles. Catal Today 40:387–39510.1016/S0920-5861(98)00067-4 ↗