Facile Fabrication of AgCl@Polypyrrole−Chitosan Core−Shell Nanoparticles and Polymeric Hollow Nanospheres
2004; American Chemical Society; Volume: 20; Issue: 23 Linguagem: Inglês
10.1021/la048377w
ISSN1520-5827
AutoresDaming Cheng, Haibing Xia, Hardy Sze On Chan,
Tópico(s)Nanomaterials for catalytic reactions
ResumoA 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.
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