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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and Phenol Captivating Properties of Polyvingylpyrrolidone-Montmorillonite Hybrid Materials
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Preparation and Phenol Captivating Properties of Polyvingylpyrrolidone-Montmorillonite Hybrid Materials

机译：聚乙烯基吡咯烷酮-蒙脱土杂化材料的制备及其对苯酚的吸附性能

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摘要

Montmorillonite minerals were modified in two distinct steps in order to remove hydroxlated toxicants from the aqueous environment.At first,the montmorillonite minerals were acrylated with the silylating agent #gamma#-methcaryloxypropyl trimethoxysilane to give a product denoted as TAY-10.In the second step these materials readily reacted with vinylpyrrolidone to form copolymers covalently bonded to the clay.All hybrid materials were characterized by FTIR spectroscopy,thermogravimetry,X-ray diffractometry,SEM,and differential thermal analysis.The original montmorillonite structure was maintained for the copolymer modified surfaces.Different loadings of polyvinylpyrrolidone (PVP) were examined to arrive at the optimal conditions for the removal of toxicants from the aqueous environment.The presence of the PVP enhanced the adsorption capacity of the clay toward phenolic compounds from solution s evidenced by the retention percent that was as high as 98.9%.Theseresults demonstrated the feasibility of utilizing a PVP modified clay as a thermally recyclable adsorbent for environmental pollutants.
机译：为了从水性环境中去除羟基化的有毒物质，蒙脱石矿物经过两个不同的步骤进行改性。首先，将蒙脱石矿物与甲硅烷基化剂＃γ＃-甲基芳氧基丙基三甲氧基硅烷进行丙烯酸酯化，制得TAY-10产品。步骤这些材料容易与乙烯基吡咯烷酮反应形成共价键合到粘土上的共聚物。所有杂化材料都通过FTIR光谱，热重分析，X射线衍射，SEM和差示热分析进行了表征。共聚物改性后的表面保持了原始的蒙脱石结构考察了聚乙烯吡咯烷酮（PVP）的不同负载量，从而确定了从水性环境中去除毒物的最佳条件.PVP的存在增强了粘土对溶液中酚类化合物的吸附能力，其保留百分率表明：结果高达98.9％。使用PVP改性粘土作为环境污染物的热循环吸附剂的可能性。

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