Effect of Surface Oxidation on the Colloidal Stability and Sorption Properties of Carbon Nanotubes

表面氧化对碳纳米管胶体稳定性和吸附性能的影响

• 批准号: 0731147
• 负责人: William Ball
• 金额: $ 40万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0731147&HistoricalAwards=false
• 关键词: Effect; Surface; Oxidation; Colloidal; Stability

CBET-0731147William BallJohns Hopkins UniversityEffect of Surface Oxidation on the Colloidal Stability and Sorption Properties of Carbon NanotubesThis project will characterize relationships between the surface composition and colloidal stability of carbon nanotubes (CNT) and their sorption properties in aquatic environments. Such information is critically important for the development of models to predict the transport properties and environmental impacts of CNTs and related hierarchical nanostructures. The project also will develop analytical techniques to characterize the surface properties of black carbon materials, providing quantitative information on the concentration of oxygen and the distribution of surface-bound oxygen-containing functional groups produced on CNTs exposed to different oxidizing conditions. Sorption studies will provide a database that can be used to compare and contrast CNT properties with more traditional, well-studied black carbon (BC) sorbents such as soots, chars and activated carbons.

CBET-0731147WILLIAM BALLJOHNS HOPKINS表面氧化对碳纳米蛋白蛋白蛋白比较项目的胶体稳定性和吸附性能的大学效果将表征碳纳米管（CNT）（CNT）的表面组成与胶体稳定性之间的关系及其在水上环境中的胶体稳定性。这些信息对于开发模型至关重要，以预测CNT和相关层次纳米结构的运输特性和环境影响。该项目还将开发分析技术来表征黑碳材料的表面特性，从而提供有关氧浓度的定量信息，以及在暴露于不同氧化条件的CNT上产生的含氧氧官能团的分布。吸附研究将提供一个数据库，该数据库可用于比较和对比CNT的特性与更传统的，良好的黑碳（BC）吸附剂，例如烟灰，炭和活性碳。