Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T08:54:17.593Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic Iron Sulfide Nanoparticles for Potential Applications in GasSensing

Published online by Cambridge University Press:  11 January 2016

Sixberth Mlowe ,
Shivram Sopan Garje ,
Thomas Moyo  and
Neerish Revaprasadu
Sixberth Mlowe*
Affiliation:
Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa, 3886, South Africa. E-mail: [email protected]
Shivram Sopan Garje
Affiliation:
Department of Chemistry, University of Mumbai Vidyanagari, Santacruz (E), Mumbai 400 098, India.
Thomas Moyo
Affiliation:
School of Chemistry and Physics, Westville Campus, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
Neerish Revaprasadu
Affiliation:
Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa, 3886, South Africa. E-mail: [email protected]
*
*(Email: [email protected])
Get access

Abstract

The crystal structure and phase transformations of iron sulfide nanomaterialshave interesting properties that can be utilized in solar cells, biological andother applications. Iron (III) complexes piperidine (1) andtetrahydroquinoline (2) dithiocarbamate have been synthesized andsubsequently utilized as single source precursors for the preparation of ironsulfide nanoparticles by solvothermal and pyrolysis methods. The powder X-raydiffraction (p-XRD) studies gave crystalline information of the iron sulfidenanoparticles which were dependent on the reaction conditions. Only the greigitephase (Fe3S4) was obtained when the solvothermal methodwas used during the synthesis. The pyrolysis method gave a mixture of pyrite(FeS2) and pyrrhotite phases when complex (1) wasused while complex (2) gave pure pyrrhotite. Well interconnectedmicrostructures and nanoflakes-like structures were obtained by scanningelectron microscopy imaging. Furthermore, magnetic properties of theas-synthesized nanoparticles displayed ferromagnetic and antiferromagneticbehaviour, typical of greigite and pyrrhotite nanoparticles respectively. Adirect band gap of 2.70 eV was obtained according to optical absorptionstudies.

Keywords

ferromagneticphase transformationx-ray diffraction (XRD)
Type
Articles
Information
MRS Advances , Volume 1 , Issue 3: Nanomaterials and Synthesis , 2016 , pp. 235 - 240
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Steinhagen, C., Harvey, T.B., Stolle, C.J., Harris, J. and Korgel, B., J. Phys. Chem. Lett. 3, 2352 (2012).Google Scholar
Geng, H., Zhu, L., Li, W., Liu, H., Quan, L., Xi, F. and Su, X., J. Power Sources. 281, 204 (2015).Google Scholar
Janick, P.A. and Siegel, L.M., Biochem. 21, 3538 (1982).CrossRefGoogle Scholar
Gillum, W.O., Mortenson, L.E., Chen, J.S. and Holm, R.H., J. Am. Chem. Soc. 99, 584 (1977).Google Scholar
Kissin, S.A. and Scott, S.D., Econ. Geol. 77, 1739 (1982).Google Scholar
Disale, S.D. and Garje, S.S, Adv. Sci. Lett. 3, 80 (2010).Google Scholar
Zhang, Y., Du, Y., Xu, H. and Wang, Q., CrystEngComm. 12, 3658 (2010).CrossRefGoogle Scholar
Akhtar, M., Malik, M.A., Tuna, F. and O’Brien, P., J. Mater. Chem. A 1, 8766 (2013).CrossRefGoogle Scholar
Mlowe, S., Lewis, D.J., Malik, M.A., Raftery, J., Mubofu, E.B., O’Brien, P. and Revaprasadu, N., Daltons Trans. 2015 (Accepted Manuscript).Google Scholar
Bandaranayake, R.J., Wen, G.W., Lin, J.Y., Jiang, H.X. and Sorensen, C.M., Appl. Phys. Lett. 67, 831 (1995).Google Scholar
Vaughan, D.J. and Lennie, A.R., Sci. Prog. 75, 371 (1991).Google Scholar
Dekkers, M.J., Passier, H.F. and Schoonen, M.A.A., Geophys. J. Int. 141, 809 (2000).Google Scholar
Ponzoni, A., Comini, E., Concina, I., Ferroni, M., Falasconi, M., Gobbi, E., Sberveglieri, V. and Sberveglieri, G., Sensors 12, 17023 (2012).Google Scholar