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 Ball约翰霍普金斯大学表面氧化对碳纳米管胶体稳定性和吸附特性的影响该项目将表征碳纳米管（CNT）的表面组成和胶体稳定性及其在水生环境中的吸附特性之间的关系。这些信息对于开发模型来预测碳纳米管和相关分层纳米结构的传输特性和环境影响至关重要。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在不同氧化条件下的碳纳米管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，可用于将 CNT 特性与更传统的、经过充分研究的黑碳 (BC) 吸附剂（如烟灰、木炭和活性炭）进行比较和对比。