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-0731147 William BallJohns霍普金斯大学表面氧化对碳纳米管的胶体稳定性和吸附性能的影响本项目将表征碳纳米管（CNT）的表面组成和胶体稳定性与其在水环境中的吸附性能之间的关系。这些信息对于开发预测CNT和相关分级纳米结构的传输特性和环境影响的模型至关重要。该项目还将开发分析技术来表征黑碳材料的表面特性，提供有关氧浓度和暴露于不同氧化条件下的CNT上产生的表面结合含氧官能团分布的定量信息。吸附研究将提供一个数据库，可用于比较和对比CNT的性能与更传统的，充分研究的黑碳（BC）吸附剂，如烟灰，焦炭和活性炭。