TY - JOUR
T1 - Synthesis and application of magnesium oxide nanospheres with high surface area
AU - Hsiao, Chu Yun
AU - Li, Wei Min
AU - Tung, Kuo Shin
AU - Shih, Chuan Feng
AU - Hsu, Wen Dung
N1 - Funding Information:
The author would like to thank the National Science Council, Taiwan , for financially supporting this research under Contract No. NSC 100-2221-E-006-130-MY2 and the Center for Micro/Nano Science and Technology .
PY - 2012/11
Y1 - 2012/11
N2 - Magnesium oxide (MgO) nanospheres with a high specific surface area were synthesized by the polyol method. The BET specific surface area of the nanopowders was ∼90 m 2/g by adjusting the molar ratio of the precursor, the reaction time, and the washing solution. It was increased to 102 m 2/g by calcining at ∼250 °C. Scanning electron microscopic and transmission electron microscopic observations showed that the MgO nanospheres composed of highly folded flakes, which were responsible for the observed high surface area. The high BET characteristic of the MgO nanospheres can be applied to sintering of microwave ceramics at a reducing sintering temperature, uniformed grain size distribution, and high bulk density. Finally, their capacity to remove hexavalent chromium was presented.
AB - Magnesium oxide (MgO) nanospheres with a high specific surface area were synthesized by the polyol method. The BET specific surface area of the nanopowders was ∼90 m 2/g by adjusting the molar ratio of the precursor, the reaction time, and the washing solution. It was increased to 102 m 2/g by calcining at ∼250 °C. Scanning electron microscopic and transmission electron microscopic observations showed that the MgO nanospheres composed of highly folded flakes, which were responsible for the observed high surface area. The high BET characteristic of the MgO nanospheres can be applied to sintering of microwave ceramics at a reducing sintering temperature, uniformed grain size distribution, and high bulk density. Finally, their capacity to remove hexavalent chromium was presented.
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U2 - 10.1016/j.materresbull.2012.06.049
DO - 10.1016/j.materresbull.2012.06.049
M3 - Article
AN - SCOPUS:84866730719
SN - 0025-5408
VL - 47
SP - 3912
EP - 3915
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 11
ER -