@article { ISI:000257381600004,
	title = {Sulfur nanoparticles synthesis and characterization from H2S gas, using novel biodegradable iron chelates in w/o microemulsion},
	journal = {Nanoscale Research Letters},
	volume = {3},
	number = {6},
	year = {2008},
	month = {JUN},
	pages = {221-229},
	publisher = {SPRINGER},
	address = {233 SPRING ST, NEW YORK, NY 10013 USA},
	abstract = {<p>Sulfur nanoparticles were synthesized from hazardous H2S gas using novel biodegradable iron chelates in w/o microemulsion system. Fe3+-malic acid chelate (0.05 M aqueous solution) was studied in w/o microemulsion containing cyclohexane, Triton X-100 and n-hexanol as oil phase, surfactant, co-surfactant, respectively, for catalytic oxidation of H2S gas at ambient conditions of temperature, pressure, and neutral pH. The structural features of sulfur nanoparticles have been characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive spectroscopy (EDS), diffused reflectance infra-red Fourier transform technique, and BET surface area measurements. XRD analysis indicates the presence of alpha-sulfur. TEM analysis shows that the morphology of sulfur nanoparticles synthesized in w/o microemulsion system is nearly uniform in size (average particle size 10 nm) and narrow particle size distribution (in range of 5-15 nm) as compared to that in aqueous surfactant systems. The EDS analysis indicated high purity of sulfur (\&gt; 99\%). Moreover, sulfur nanoparticles synthesized in w/o microemulsion system exhibit higher antimicrobial activity (against bacteria, yeast, and fungi) than that of colloidal sulfur.</p>},
	keywords = {Antimicrobial activity, H2S gas, iron chelates, sulfur nanoparticles, w/o microemulsion},
	issn = {1931-7573},
	doi = {10.1007/s11671-008-9140-6},
	author = {Deshpande, Aniruddha S. and Khomane, Ramdas B. and Vaidya, Bhalchandra K. and Joshi, Renuka M. and Harle, Arti S. and Kulkarni, Bhaskar D.}
}
