Adsorption properties of hyperbranched aliphatic polyester grafted attapulgite towards heavy metal ions

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• 作者：Peng Liu ; Tingmei Wang
• 关键词：Hyperbranched aliphatic polyester ; Attapulgite ; Adsorption properties ; Heavy metal ions
• 刊名：Journal of Hazardous Materials
• 出版年：2007
• 期刊代码：50_03043894
• 类别：ce
• 出版时间：1 October 2007
• 卷：149
• 期：1
• 页码：75-79
• 文件大小：403 K

摘要

The AB₂ type monomer, 2,2-bis (hydroxymethyl) propionic acid (bis-MPA), was successfully grafted from the surfaces of the amino groups modified attapulgite nano-fibrillar clay (A-ATP) via a melt polycondensation method with p-toluenesulfonic acid (p-TSA) as catalyst. The competitive adsorption properties of the hyperbranched aliphatic polyester grafted attapulgite (HAPE-ATP) towards the heavy metal ions (Cu(II), Hg(II), Zn(II), and Cd(II)) were investigated preliminarily.