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Active-Ilmenite Surface Structure Influence On Acid-Assisted Ball Milling

Author

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  • WEERACHON PHOOHINKONG

    (College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang KMITL, Bangkok 10520, Thailand)

  • SORAPONG PAVASUPREE

    (#x2020;Department of Materials and Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Klong 6, Pathumthani 12110, Thailand)

  • KANOKTHIP BOONYARATTANAKALIN

    (College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang KMITL, Bangkok 10520, Thailand)

  • WANICHAYA MEKPRASART

    (College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang KMITL, Bangkok 10520, Thailand)

  • WISANU PECHARAPA

    (College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang KMITL, Bangkok 10520, Thailand)

Abstract

Active-ilmenite powder derived from natural ilmenite sand was prepared by the ball milling process with acid-solution and Deionized (DI) water. Morphology and particle size of active-ilmenite product in acid/DI-assisted ball milling process were monitored by field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). Surface atomic component and chemical bonding were investigated by X-ray photoelectron spectroscopy (XPS). Meanwhile, bulk chemical oxidation and fine structure of active-ilmenite were studied by X-ray absorption near edge structure (XANES) and extended X-ray absorption ne-structure spectroscopy (EXAFS) to confirm the oxidation state and local active species structure at surface. Active-ilmenite by acid-assisted ball milling process is a distinctive method for the preparation of active-ilmenite product with high active surface. Moreover, the distortion of TiO6 and FeO6 octahedral cluster on the sample surface was detected in all milled samples with acid-assisted ball milling process. The presence of Fe2+, Fe3+ ions and miniature sulfate was also detected on the sample surface by milled product with acid-assisted method.

Suggested Citation

  • Weerachon Phoohinkong & Sorapong Pavasupree & Kanokthip Boonyarattanakalin & Wanichaya Mekprasart & Wisanu Pecharapa, 2018. "Active-Ilmenite Surface Structure Influence On Acid-Assisted Ball Milling," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(Supp01), pages 1-11, December.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:supp01:n:s0218625x18400061
    DOI: 10.1142/S0218625X18400061
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    Keywords

    Ilmenite; FeTiO3; ball milling; XANES; EXAFS;
    All these keywords.

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