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- W3000284809 endingPage "160" @default.
- W3000284809 startingPage "85" @default.
- W3000284809 abstract "Titanium dioxide (TiO2) nanoparticles with different sizes and crystalloid structures produced by the thermal method and doped with silver iodide (AgI), nitrogen (N), sulfur (S), and carbon (C) were applied as adsorbents. The adsorption of methyl violet (MV), methylene blue (MB), methyl orange (MO), and Orange II on the surface of these particles was studied. The photocatalytic activity of some particles for the destruction of MV and Orange II was evaluated under sunlight and visible light. The equilibrium adsorption data were fitted to the Langmuir, Freundlich, Langmuir–Freundlich, and Temkin isotherms. The equilibrium data show that TiO2 particles with larger sizes and doped with AgI, N, S, and C have the highest adsorption capacity for the dyes. The kinetic data followed the pseudo–first-order and pseudo–second-order models, while desorption data fitted the zero-order, first-order, and second-order models. The highest adsorption rate constant was observed for the TiO2 with the highest anatase phase percentage. Factors such as anatase crystalloid structure, particle size, and doping with AgI affect the photocatalytic activity significantly. Increasing the rutile phase percentage also decreases the tendency to desorption for NTiO2 and STiO2. Adsorption was not found to be important in the photocatalytic decomposition of MV in an investigation with differently sized AgITiO2 nanoparticles. Nevertheless, CTiO2 was found to have higher adsorption activity onto Orange II, as the adsorption role of carbon approached synchronicity with the oxidation role." @default.
- W3000284809 created "2020-01-23" @default.
- W3000284809 creator A5028264023 @default.
- W3000284809 creator A5048032514 @default.
- W3000284809 date "2020-01-01" @default.
- W3000284809 modified "2023-09-27" @default.
- W3000284809 title "Adsorption of dyes onto modified titanium dioxide" @default.
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