Attaching Titania Nanoparticles onto Shortened Carbon Nanotubes by Electrostatic Attraction

作者：Dong Hongying^*; Lu Kathy

来源：International Journal of Applied Ceramic Technology, 2009, 6(2): 216-222.

DOI：10.1111/j.1744-7402.2008.02270.x

Carbon nanotubes (CNTs) can be electronically conducting or semiconducting, and they are lightweight and have high stability. TiO(2) has been studied for applications in optics, microelectronics, and photocatalysis. Hybrid CNTs/TiO(2) shows unique photocatalytic and electrical properties for enhanced performances as solar cell electrode, sensors, and catalysts. This study is focused on shortening multiwalled CNTs (MWCNTs) and attaching TiO(2) nanoparticles onto MWCNTs by electrostatic attraction. A mechanical and chemical hybrid method is used to tailor CNT length. Opposite zeta-potentials are achieved for CNT and TiO(2) nanoparticle suspensions under the same pH. TiO(2) nanoparticles are attached onto CNTs for surface modification by electrostatic attraction.

• 出版日期2009