Evolution of reactive surface area, minearlogy, kinetics, and aggregation during iron oxide mediated contaminant transformation

氧化铁介导的污染物转化过程中反应表面积、矿物学、动力学和聚集的演变

• 批准号: 1012193
• 负责人: R. Lee Penn
• 金额: $ 39.7万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-15 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012193&HistoricalAwards=false
• 关键词: Evolution; reactive; surface; area; minearlogy

The Environmental Chemical Sciences (ECS) program of the Division of Chemistry will support the collaborative research project of Prof. Lee Penn and Prof. William Arnold of the University of Minnesota. The collaborating investigators and their students will study the mechanism of reductive transformations of highly oxidized contaminants on the surface of iron oxide nanoparticles. The study will make use for the first time of cryogenic transmission electron microscopy (Cryo-TEM) for the analysis of vitrified iron oxide nanoparticles. Results are expected to lead to vastly improved predictions of contaminant fate in both natural and engineered nanoparticle systems. The study will provide excellent opportunities to graduate and undergraduate students at the University of Minnesota to work on a cutting edge research project in environmental chemical sciences.

化学学部的环境化学科学（ECS）项目将支持明尼苏达大学Lee Penn教授和William Arnold教授的合作研究项目。合作研究人员及其学生将研究高氧化污染物在氧化铁纳米颗粒表面的还原转化机制。该研究将首次利用低温透射电子显微镜（Cryo-TEM）对玻璃化氧化铁纳米颗粒进行分析。研究结果有望大大改善对天然和工程纳米颗粒系统中污染物命运的预测。这项研究将为明尼苏达大学的研究生和本科生提供极好的机会，从事环境化学科学领域的前沿研究项目。