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.