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Fabrication of silver-coated silica microspheres through mussel-inspired surface functionalization
- Source :
-
Journal of Colloid & Interface Science . Jun2011, Vol. 358 Issue 2, p567-574. 8p. - Publication Year :
- 2011
-
Abstract
- Abstract: A facile method was developed to prepare silica–silver core–shell composite microspheres with continuous, compact, and conductive silver layers. The procedure involves dopamine oxidative self-polymerization and electroless plating. The poly(dopamine) layer was used as the chemi-sorption sites for silver ions and promoted the silver deposition. The electroless plating procedure involves a combination of surface activation, seeding growth, and deposition. The chemical composition and the crystal structure of the silica–silver core–shell composite microspheres were studied by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), respectively. In addition, the surface morphology and chemical composition of each composite microsphere were confirmed by scanning electron microscopy and energy dispersive X-ray spectroscopy. The results demonstrated that the silver layer on the silica surface was continuous and compacted. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 358
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 60155169
- Full Text :
- https://doi.org/10.1016/j.jcis.2011.03.023