CAREER: Adsorption, Transport and Catalysis of Organic Compounds in Water-Saturated Microporous Materials

CTS - 9624724詹姆斯·法雷尔亚利桑那大学 摘要 该项目涉及水饱和微孔材料中的吸附和传输现象。 将使用模型固体和含水层沉积物研究控制含水层沉积物中疏水污染物释放的机制。 这项研究将集中在探索毛细管相分离（CPS）的疏水性溶质在以前的水填充的分子尺寸的孔的潜力。 溶质填充的微孔可能有助于吸附/解吸滞后和解吸阻力部分。 合成沸石将被用作模型吸附剂，以确定表面类型，孔径，溶质疏水性和溶质浓度的影响。 计划进行程序升温脱附实验和NMR测量。 这项研究可能导致改进技术，用于催化销毁制造过程中的化学污染物，并从含水和高湿度蒸汽流中回收有机化合物。 教育计划包括化学和环境工程专业的学生。 它侧重于案例研究，相关软件包和本科生的研究经验的使用。

CTS - 9624724 James Farrell University of Arizona ABSTRACT The project deals with adsorption and transport phenomena in water-saturated microporous materials. The mechanisms controlling the release of hydrophobic contaminants from aquifer sediments will be investigated using both model solids and acquifer sediments. The research will focus on exploring the potential for capillary phase separation (CPS) of a hydrophobic solute within previously water-filled pores of molecular dimensions. The solute-filled micropores may contribute to both adsorption/desorption hysteresis and the desorption resistant fraction. Synthetic zeolites will be used as model sorbents to determine the effects of surface type, pore size, solute hydrophobicity and solute concentration. Temperature programmed desorption experiments and NMR measurements are planned. The research may lead to improved techniques for catalytic destruction of chemical pollutants from manufacturing processes and recovery of organic compounds from aqueous and high humidity vapor streams. The educational plan includes both chemical and environmental engineering students. It focuses on the use of case studies, relevant software packages and research experience for undergraduates.