US-Turkey Cooperative Research: Preparation of Nanoscale Magnetite Dispersed Polymer Particles for Environmental Applications

0217830SenguptaDescription：该奖项是为了表彰由宾夕法尼亚州伯利恒利哈伊大学土木与环境工程系Arun Sengupta博士和土耳其伊斯坦布尔Yildiz技术大学化学工程系Ulker Beker博士共同开展的一项研究项目。合作的主要领域将包括用于被动环境监测的磁性活性聚合物粒子(Mapp)的制备和表征。部分磺化的聚合物珠将在利哈伊大学使用三步法进行制备和磁化。这些粒子的磁化率将在利哈伊大学进行测定。一部分Mapp将被送往土耳其的贝克博士那里，在那里她将与Mapp一起进行一系列吸附平衡研究，使用含有氯代烃和其他挥发性有机化合物的模拟废水和工业废水。将对不同批次的Mapp进行多个周期的吸附研究。采用丙醇作为解吸再生剂。随后，这些Mapp将由Beker博士带到利哈伊大学。利哈伊大学将测定不同周期后MAPPS的磁化率，并与母体MAPPS的磁化率进行比较。由此得到的吸附等温线信息以及磁化率数据将有助于评估MAPPS作为可回收被动监测剂的有效性。范围：该项目将允许一名美国科学家与一名土耳其科学家在环境应用纳米颗粒开发领域进行合作。这项研究可能会导致开发技术上重要的材料，以及用于环境清理的产品，特别是废物中的有机物和金属离子等环境危害。该项目将涉及一名美国研究生的培训。国际科学和工程办公室以及化学和运输系统司为该项目提供资金。

0217830SenguptaDescription: This award is for support of a joint research project by Dr. Arun Sengupta, Department of Civil and Environmental Engineering, Lehigh University, Bethlehem, Pennsylvania, and Dr. Ulker Beker, Department of Chemical Engineering, Yildiz Technical University, Istanbul, Turkey. The primary area of collaboration will encompass the preparation and characterization of Magnetically Active Polymeric Particles (MAPPs) for passive environmental monitoring. Partially sulfonated polymer beads will be prepared and magnetized in Lehigh University using the three-step procedure. Magnetic susceptibility of the particles will be determined at Lehigh University. One portion of the MAPPs will be sent to Dr. Beker in Turkey where she will carry out a series of sorption equilibrium studies with MAPPs, using both simulated and industrial wastewaters containing chlorinated hydrocarbons and other volatile organic compounds. Sorption studies will be carried out for multiple cycles with different batches of MAPPs. Propanol will be used as the regenerant for desorption. Subsequently, these MAPPs will be brought to Lehigh University by Dr. Beker. Magnetic susceptibilities of MAPPs after various cycles will be determined at Lehigh University and compared with the magnetic susceptibility of the parent MAPPs. The resulting information on sorption isotherms along with magnetic susceptibility data will help evaluate the effectiveness of MAPPs as recyclable passive monitoring agents.Scope: This project will allow a US scientist to collaborate with a Turkish scientist in the area of nanoparticle development for environmental applications. The research could lead to the development of technologically important materials, and to products for environmental cleanups, especially of environmental hazards such as organics and metal ions from waste. The project will involve the training of a U.S. graduate student. The Office of International Science and Engineering and the Division of Chemical and Transport Systems provide funding for this project.