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首页> 外文期刊>Journal of Polymers and the Environment >Large Scale Synthesis Poly(Acrylamide)/Soluble Glass Porous Composites (SGAP) with Three-Dimensional Interpenetrating Network Structure for Enhanced Adsorption of Cu2+
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Large Scale Synthesis Poly(Acrylamide)/Soluble Glass Porous Composites (SGAP) with Three-Dimensional Interpenetrating Network Structure for Enhanced Adsorption of Cu2+

机译：具有三维互穿网络结构的大规模合成聚（丙烯酰胺）/可溶性玻璃多孔复合材料（SGAP），以增强对Cu2 +的吸附

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摘要

To decrease exhaust gas, waste solution, and solid waste accompanied by the synthetic adsorbent procedure and fast separation the adsorbent from large volumes of wastewater. In this paper, large scale SGAP with three-dimensional interpenetrating network structure were prepared in two steps: (1) soluble glass/poly(acryamide) gels were synthesized via free radical polymerization method; (2) soluble glass/poly(acryamide) gels with three-dimensional interpenetrating network structure were foamed at 190 A degrees C for 30 min. The obtained SGAP were used to investigate adsorption of Cu2+ from aqueous solutions. The research results display that the obtained composite has high adsorption capacity at optimum pH = 5. The maximum adsorption capacity was 406.2 mg g(-1) within 420 min at 45 A degrees C. The kinetic datum were analyzed using the pseudo first-order and pseudo second-order models and found to fit very well the pseudo second-order kinetic model. Datum of equilibrium experiments were fitted well to Langmuir isotherm. Thermodynamic parameters showed that the adsorption process was spontaneous, endothermic. Energy-dispersive X-ray analyses and Fourier transform infrared spectrophotometry demonstrate the adsorption of Cu2+ onto SGAP.
机译：为了减少废气，废液和固体废物，并采用合成吸附剂程序，并将吸附剂与大量废水快速分离。本文分两步制备了具有三维互穿网络结构的大规模SGAP：（1）通过自由基聚合法合成可溶性玻璃/聚（丙烯酰胺）凝胶。 （2）将具有三维互穿网络结构的可溶性玻璃/聚丙烯酰胺凝胶在190°C下发泡30分钟。所得的SGAP用于研究水溶液中Cu2 +的吸附。研究结果表明，所获得的复合材料在最适pH = 5时具有较高的吸附容量。在45 A摄氏度下420分钟内最大吸附容量为406.2 mg g（-1）。使用拟一级方程分析动力学数据。和伪二阶模型，发现非常适合伪二阶动力学模型。平衡实验的基准非常适合Langmuir等温线。热力学参数表明吸附过程是自发的，吸热的。能量色散X射线分析和傅里叶变换红外分光光度法表明，Cu2 +吸附在SGAP上。

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