Efficient surface modification of carbon nanotubes for fabricating high performance CNT based hybrid nanostructures
Journal article, 2017
Carbon nanotubes (CNTs) were chemically modified to achieve strong binding strength with the attached functional components as well as good dispersability and nanoparticle size-uniformity. An efficient multi-oxidation process was developed to create porous out layer with many nanoscale defects on the surface of CNTs for metallic nanoparticle close attachment and bond sufficient oxygen-containing groups, which assisted the dispersion of CNTs in the aqueous solution. The surface modified CNTs have advantages of strong binding capability, large surface area, high mechanical strength and good dispersability, which show great potential as building blocks for hybrid nanomaterials. Monodispersed silver nano particles with an average size of 3 nm were formed from inside the created nanoscale defects on the surface of CNTs without any obvious agglomerations. The fabricated hybrid exhibited much enhanced anti-bacterial performance compared to commercial silver nanoparticles due to the combined antibacterial effects of CNTs and silver nanoparticles. With these superior properties, the developed surface modification process could be widely used for improving the performances of many CNT based hybrid nanomaterials in diverse applications.
Author
Nan Wang
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Santosh Pandit
Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology
L. Ye
SHT Smart High-Tech
Michael Edwards
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Venkata Raghu Mokkapati
Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology
Murali Murugesan
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Volodymyr Kuzmenko
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Wallenberg Wood Science Center (WWSC)
Changhong Zhao
Shanghai University
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Fredrik Westerlund
Chalmers, Biology and Biological Engineering, Chemical Biology
Ivan Mijakovic
Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology
Johan Liu
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Shanghai University
Carbon
0008-6223 (ISSN)
Vol. 111 402-410Subject Categories
Energy Engineering
Metallurgy and Metallic Materials
Areas of Advance
Materials Science
DOI
10.1016/j.carbon.2016.10.027