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

摘要本项目研究饱和水微孔材料中的吸附和输运现象。控制疏水污染物从含水层沉积物中释放的机制将使用模型固体和含水层沉积物进行研究。该研究将重点探索在先前充满水的分子尺度孔隙中疏水溶质的毛细管相分离（CPS）的潜力。溶质填充的微孔可能导致吸附/脱附滞后和脱附阻力。将合成的沸石作为模型吸附剂，以确定表面类型、孔径、溶质疏水性和溶质浓度对吸附剂的影响。计划进行温度程序解吸实验和核磁共振测量。这项研究可能会改进催化破坏制造过程中化学污染物的技术，以及从水和高湿度蒸汽流中回收有机化合物的技术。教育计划包括化学和环境工程专业的学生。它侧重于使用案例研究，相关软件包和本科生的研究经验。

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.