CAJ | 학술논문

研究了壬基酚聚氧乙烯醚(NPEO-10)在3种具有不同比表面积和孔径大小的超高交联树脂上的吸附行为与机理.3种超高交联树脂对壬基酚聚氧乙烯醚的吸附量受它们的比表面积和孔径大小以及溶液温度的影响.壬基酚聚氧乙烯醚在3种超高交联树脂上的吸附等温线可以用Langmuir和双Langmuir模型很好地拟合,而用Freundlich模型拟合则效果不好,但这些拟合曲线都具有相似的形状.热力学分析表明吸附过程主要表现为吸附质分子的疏水部分和吸附剂表面的作用以及吸附质分子在其表面形成胶束状的聚集体,即分散的、单层及双层聚集体的混合分布.吸附动力学曲线中的两个平台也证明了吸附过程存在单层和双层聚集体.脱附研究为实现超高交联树脂吸附分离水溶液中的壬基酚聚氧乙烯醚提供了合适的操作条件.
연구료임기분취양을희미(NPEO-10)재3충구유불동비표면적화공경대소적초고교련수지상적흡부행위여궤리.3충초고교련수지대임기분취양을희미적흡부량수타문적비표면적화공경대소이급용액온도적영향.임기분취양을희미재3충초고교련수지상적흡부등온선가이용Langmuir화쌍Langmuir모형흔호지의합,이용Freundlich모형의합칙효과불호,단저사의합곡선도구유상사적형상.열역학분석표명흡부과정주요표현위흡부질분자적소수부분화흡부제표면적작용이급흡부질분자재기표면형성효속상적취집체,즉분산적、단층급쌍층취집체적혼합분포.흡부동역학곡선중적량개평태야증명료흡부과정존재단층화쌍층취집체.탈부연구위실현초고교련수지흡부분리수용액중적임기분취양을희미제공료합괄적조작조건.
The aim of this study was to determine the behaviors and mechanism of three hypercrosslinked polymers during the adsorption of nonylphenol ethoxylated decylether(NPEO-10)from aqueous solutions.The polymers were characterized to determine their specific surface areas,pore sizes,and elemental contents.The adsorption isotherms of NPEO-10 on the three polymers fit the Langmuir and double Langmuir models better than the Freundlich model,and the isotherm curves had similar shapes on a lg-lg scale.The amount of adsorbed NPEO-10 depends on the specific surface area,thepore size of the polymer,and the temperature of the solution.Thermodynamic analysis indicated that the adsorption process Was characterized by an interaction of the hydrophobic part of the surfactant molecule with the surface of the polymer and by the formation of micelle-like aggregates on the surface of the polymer.A twodimensional mixture consists of singly dispersed surfactant molecules and monolayered or bi-layered aggregates on the surface of the polymers.Adsorption dynamics confirmed that the adsorption process involved two plateaus which were related to the formation of a monolayer and a bi-layer.Finally,the elution processes were investigated to further establish the appropriate adsorption conditions for the purification of water containing NPEO-10.