Facile fabrication of AgCl@polypyrrole-chitosan core-shell nanoparticles and polymeric hollow nanospheres.
A one-step sequential method for preparing AgCl@polypyrrole-chitosan core-shell nanoparticles and subsequently the formation of polypyrrole-chitosan hollow nanospheres is reported. The formation of the core and the shell is performed in one reaction medium almost simultaneously. Transmission electron microscopy (TEM) images show the presence of core-shell nanoparticles and hollow nanospheres. Ultraviolet-visible (UV-vis) studies reveal that AgCl was formed first followed by polypyrrole. X-ray diffration (XRD) and UV-vis studies show that AgCl was present in the core-shell nanoparticles and could be removed completely from the core.
Cheng
Daming
D
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117 543.
Xia
Haibing
H
Chan
Hardy Sze On
HS
D048271:Chitosan / Q000302:isolation & purification*; D008854:Microscopy, Electron; D049329:Nanostructures; D036103:Nanotechnology; D043942:Nanotubes; D011108:Polymers; D011758:Pyrroles; D018030:Silver Compounds; D013053:Spectrophotometry; D014961:X-Ray Diffraction
D011108:Polymers; D011758:Pyrroles; D018030:Silver Compounds; C067635:polypyrrole; D048271:Chitosan; C037548:silver chloride