Browsing by Author "Karunaratne, V"

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  • Development of photo catalytic active building materials using zno nanorods 
    Hewage, N; Wijeyasena, R; Karunaratne, V; Koneswaran, M [Conference-Full-text]
    In many urban cities, the pollutants concentration at street level is quite high because of the dispersion of the exhaust generated by a large number of vehicles is hindered by surrounding tall buildings. Control of these ...
  • The Nanotechnology and its contributions to economic development 
    Karunaratne, V; De Alwis, AAP [Article-Abstract]
    When you control atoms, you control just about everything," said Richard Smalley, the 1996 Nobel Laureate, who discovered buckyballs, referring to the possibilities of nanotechnology". The guiding vision of nanotechnology ...
  • Nanotechnology in a world out of balance 
    Karunaratne, V; Kottegoda, N; De Alwis, AAP [Article-Abstract]
    As the world population marches towards the 9 billion mark by 2050, factors critical for the sustenance of the ecosystems will come under increasing stress. Having crossed the 7 billion figure in 2011, the 9 billion mark ...
  • Photocatalytic activity of nano-tio2 on glass in building envelope 
    Fernando, KDG; De Alwis, AAP; Karunaratne, V; Premaratne, WAPJ [Conference-Full-text]
    Titanium dioxide is manufactured by processing naturally occurring titanium containing rutile (TiO2) or ilmenite (FeTiO3) minerals. Sri Lanka has vast deposits of ilmenite which is the major raw material in TiO2 production. ...
  • Self-assembled multilayer graphene oxide membrane and carbon nanotubes synthesized using a rare form of natural graphite 
    Kumarasinghe, AR; Samaranayake, L; Bondino, F; Magnano, E; Kottegoda, N; Carlino, E; Ratnayake, UN; De Alwis, AAP; Karunaratne, V; Amaratunga, GA [Article-Abstract]
    The fabrication of flexible multilayer graphene oxide (GO) CARBONNANOTUBe membrane and carbon nanotubes (CNTs) using a rare form of high-purity cswcmt^mwcnt, natural graphite, vein graphite, is reported for the first ...
  • Sustainable nanotechnology 
    Karunaratne, V [Conference-Full-text]
  • Synthesis of magnetite nanoparticles by top-down approach from a high purity ore 
    Priyadarshana, G; Kottegoda, N; Senaratne, A; De Alwis, AAP; Karunaratne, V [Article-Abstract]
    This study attempts to synthesize magnetite nanoparticles from a high purity natural iron oxide ore found in Panvila, Sri Lanka, following a novel top-down approach. Powder X-Ray diffraction, elemental analysis, and chemical ...
  • Urea–hydroxyapatite-montmorillonite nanohybrid composites as slow release nitrogen compositions 
    Madusanka, N; Sandaruwan, C; Kottegoda, N; Sirisena, D; Munaweera, I; De Alwis, A; Karunaratne, V; Amaratunga, GAJ [Article-Full-text]
    Nanohybrid composite was developed by the encapsulation of urea modified hydroxyapatite nanoparticles into the nanolayers of montmorillonite. The nanohybrid composites were synthesized by two approaches; solution phase ...