Na^(125)I在碳纳米管中的填充

Filling Carbon Nanotubes With Na^(125)I

碳纳米管(CNTs)在经纯化、开口处理后,用Na125I示踪,研究NaI溶液对CNTs的填充、洗涤以及它们从碳纳米管中的释放情况;用HREM、SEM、EDS对CNTs的填充情况进行了表征。结果显示CNTs管腔内有NaI填充并且在溶液中会缓慢释放出来。因此放射性核素示踪技术可以应用于CNTs的填充、释放等行为的研究。

Carbon nanotubes (CNTs) are filled with Na125I after purification and opening. The behaviour of filling, washing and release of Na125I from CNTs are investigated. CNTs samples filled with NaI under optimum filling condition are characterized by HREM, SEM and EDS. The results indicate that the Na125I are filled into the CNTs and can release slowly. It shows that the radioactive tracer technique is effective for the study of filling and release behaviour of CNTs.