Resumo

SANCHEZ, R. et al. Rod-like fluorescent halloysite nanotubes-silica composites: a novel colloidal system. Rev. mex. fis. [online]. 2015, vol.61, n.2, pp.117-122. ISSN 0035-001X.

An inexpensive novel method to produce a rod-like fluorescent colloidal system is presented in this work. The system consists of core-shell particles synthesized by using halloysite nanotubes as cores, and silica layers as shells on their surfaces. Unlike traditional protocols for producing silica core-shell particles, the method used in this work does not require a coupling agent. In addition, a fluorescent dye was incorporated to produce fluorescent composites. Due to their resulting morphology and the possibility of incorporating a fluorescent dye, they constitute a promising new colloidal model system for studying the physics of anisotropic colloidal suspensions experimentally, as well as a potential source of new materials.

Palavras-chave : Nanoclay composites; core-shell particles; halloysite nanotubes; colloidal rods.

        · texto em Inglês     · Inglês ( pdf )