MgO nanostructure via a sol-gel combustion synthesis method using different fuels: An efficient nano-adsorbent for the removal of some anionic textile dyes
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- 作者：Mostafa Y. Nassar ; m_y_nassar@yahoo.com ; m_y_nassar@fsc.bu.eg.edu ; Talaat Y. Mohamed ; dr_talaat2003@yahoo.com ; Ibrahim S. Ahmed ; Ihab Samir
- 关键词：Magnesium oxide nanostructures ; Textile dyes ; Adsorption ; Sol-gel combustion kinetics ; Thermodynamics
- 刊名：Journal of Molecular Liquids
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：225
- 期：Complete
- 页码：730-740
- 全文大小：1995 K
- 卷排序：225
文摘
MgO nanostructures were prepared employing hybrid sol-gel combustion method using different fuels. Oxalic acid fuel generated pure MgO nanostructure with the smallest crystallite size. The as-prepared MgO nanostructures showed high adsorption capacities toward Reactive Red 195 and Orange G anionic dyes. The adsorption results fitted well the pseudo-second-order and Langmuir adsorption isotherm models. Adsorption of the dyes was exothermic, physisorption and spontaneous process.