X型Gemini表面活性剂改性类水滑石的制备及其吸附对
甲酚性能
毕浩宇;梁亚琴;李燕
【期刊名称】《应用化学》 【年(卷),期】2017(034)011
【摘要】传统表面活性剂-类水滑石(HTlc)纳米复合物可有效吸附水中主要有机污染物酚类污染物,如酚类污染物,以高性能Gemini双子表面活性剂代替传统表面活性剂有望提高其去除效率.本文采用剥离-重组法制备了X型Gemini表面活性剂(MXC6)-HTlc纳米复合物,并采用粉末X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、比表面和元素分析等技术手段对样品进行了表征.结果表明,MXC6成功重组于HTlc层间.分别从吸附动力学和热力学研究了MXC6-HTlc纳米复合物对对甲酚的吸附行为:吸附动力学曲线符合准一级动力学方程;吸附等温线符合Linear方程;吸附量显著高于HTlc,且随pH值和温度的增加而降低.实验表明,MXC6-HTlc纳米复合物是一种新型高效水中酚类污染物处理剂.%Traditional surfactant-hydrotalcite-like (HTlc ) nanocomposites can effectively adsorb the main organic pollutants,such as phenolic pollutants,in water. With high performance Gemini surfactant instead of traditional surfactant,an improved removal efficiency of surfactant-HTlc nanocomposites for organic pollutants is expected. In this paper,Gemini surfactant
(MXC6
)-HTlc
nanocomposite
was
prepared
by
delamination/reassembling method. The material was characterised by powder
X-ray
diffraction,Fourier
transform
infrared
X型Gemini表面活性剂改性类水滑石的制备及其吸附对甲酚性能
