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Title: Synthesis and application of magnesium oxide nanospheres with high surface area

Abstract

Graphical abstract: Display Omitted Highlights: ► MgO nanospheres with high specific surface area synthesized by the polyol method. ► The BET specific surface area of nanopowders was 102 m{sup 2}/g by calcining at ∼250 °C. ► MgO nanospheres were applied to remove hexavalent chromium. -- Abstract: 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{sup 2}/g by adjusting the molar ratio of the precursor, the reaction time, and the washing solution. It was increased to 102 m{sup 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.

Authors:
; ;  [1];  [1];  [2];  [3]
  1. Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan (China)
  2. (China)
  3. Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan (China)
Publication Date:
OSTI Identifier:
22215636
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; BULK DENSITY; CHROMIUM; GRAIN SIZE; MAGNESIUM OXIDES; NANOSTRUCTURES; POWDERS; SCANNING ELECTRON MICROSCOPY; SPECIFIC SURFACE AREA; SURFACE AREA; SYNTHESIS; X-RAY DIFFRACTION

Citation Formats

Hsiao, Chu-Yun, Li, Wei-Min, Tung, Kuo-Shin, Shih, Chuan-Feng, E-mail: cfshih@mail.ncku.edu.tw, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 70101, Taiwan, and Hsu, Wen-Dung. Synthesis and application of magnesium oxide nanospheres with high surface area. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.06.049.
Hsiao, Chu-Yun, Li, Wei-Min, Tung, Kuo-Shin, Shih, Chuan-Feng, E-mail: cfshih@mail.ncku.edu.tw, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 70101, Taiwan, & Hsu, Wen-Dung. Synthesis and application of magnesium oxide nanospheres with high surface area. United States. doi:10.1016/J.MATERRESBULL.2012.06.049.
Hsiao, Chu-Yun, Li, Wei-Min, Tung, Kuo-Shin, Shih, Chuan-Feng, E-mail: cfshih@mail.ncku.edu.tw, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 70101, Taiwan, and Hsu, Wen-Dung. Thu . "Synthesis and application of magnesium oxide nanospheres with high surface area". United States. doi:10.1016/J.MATERRESBULL.2012.06.049.
@article{osti_22215636,
title = {Synthesis and application of magnesium oxide nanospheres with high surface area},
author = {Hsiao, Chu-Yun and Li, Wei-Min and Tung, Kuo-Shin and Shih, Chuan-Feng, E-mail: cfshih@mail.ncku.edu.tw and Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 70101, Taiwan and Hsu, Wen-Dung},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► MgO nanospheres with high specific surface area synthesized by the polyol method. ► The BET specific surface area of nanopowders was 102 m{sup 2}/g by calcining at ∼250 °C. ► MgO nanospheres were applied to remove hexavalent chromium. -- Abstract: 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{sup 2}/g by adjusting the molar ratio of the precursor, the reaction time, and the washing solution. It was increased to 102 m{sup 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.},
doi = {10.1016/J.MATERRESBULL.2012.06.049},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}