News Column

Data on Materials Science Reported by Researchers at Chongju University

February 11, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Materials Science have been presented. According to news reporting originating in Chongju, South Korea, by VerticalNews journalists, research stated, "A novel class of core-shell- and hollow-structured MnCO3/TiO2 composites was synthesized by titania nanocoating on MnCO3 microspheres via two-step liquid-phase deposition at room temperature. Morphological change from core shell to hollow microparticles was possible in the prepared samples by controlling prereaction time of MnCO3 and [NH4](2)TiF6."

The news reporters obtained a quote from the research from Chongju University, "Upon the prereaction process, the core of the core shell MnCO3/TiO2 became highly porous, and a honeycomb-like surface that resembled the orientation of self-assembled MnCO3 nanocrystals was developed. The MnCO3 core was completely removed after 6 h prereaction. Calcination at 600 degrees C resulted in the transformation of both core-shell- and hollow-structured composites to Mn2O3/TiO2 anatase microspheres that retained their original morphologies. X-ray diffraction, field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and electron probe microanalysis were employed for microsphere characterization. As the first trial for application of the synthesized materials, solid-extraction of organics from aqueous media was examined using methylene blue (MB). Both types of Mn2O3/TiO2 composites showed very fast adsorption of MB with high extraction values of 5.2 and 6.4 mu mol g(-1) for the core shell and hollow structures, respectively."

According to the news reporters, the research concluded: "Current work provides a new approach for facile fabrication of titania metal oxide nanocomposites with unique morphological features and promising application possibilities."

For more information on this research see: Titania Nanocoating on MnCO3 Microspheres via Liquid-Phase Deposition for Fabrication of Template-Assisted Core-Shell- and Hollow-Structured Composites. ACS Applied Materials & Interfaces, 2014;6(1):57-64. ACS Applied Materials & Interfaces can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; ACS Applied Materials & Interfaces -

Our news correspondents report that additional information may be obtained by contacting H.K. Lee, Chongju Univ, Dept. of Environm Engn, Chongju 360764, South Korea. Additional authors for this research include D. Sakemi, R. Selyanchyn, C.G. Lee and S.W. Lee.

Keywords for this news article include: Asia, Chongju, South Korea, Materials Science

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Source: Journal of Technology

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