Enhancement of methyl violet removal by modification of TiO₂ nanoparticles with AgI

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• 作者：Shila Jafari ; Saeid Azizian ; Babak Jaleh
• 关键词：Adsorption ; TiO2 ; Methyl violet ; AgI/TiO2 ; Kinetic ; Equilibrium ; Desorption
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2012
• 出版时间：25 November, 2012
• 年：2012
• 卷：18
• 期：6
• 页码：2124-2128
• 全文大小：528 K

文摘

Nanostructured AgI/TiO₂ was synthesized by deposition-precipitation method. The AgI/TiO₂ nanoparticles with different size were characterized using XRD and TEM methods. In order to compare the activity of these nanoparticles for removal of environmental pollutants, the adsorption of methyl violet by particles was studied. The equilibrium adsorption data were fitted to the different isotherms. The equilibrium data show that the modification of TiO₂ nanoparticles with AgI, leads to the higher adsorption capacity (more than twice) for methyl violet. The kinetic data for adsorption of methyl violet indicates that modification of TiO₂ with AgI leads to a stable adsorption.