Preparation, characterization, and photocatalytic activity of sulfate-modified titania for degradation of methyl orange under visible light

Central composite design for the optimization of removal of the azo dye, Methyl Red, from waste water using Fenton reaction

“…Therefore, it is obvious that a reliable and trusty method is required to gain the true optimized values. The experimental design is a method which can lead to this goal [18][19][20] .…”

Photocatalytic Degradation of Rhodamine B over Sulfated SiO2-TiO2 Composite by Sulphuric Acid Impregnation Method

“…Regarding to the surface properties, modification of the titania with different anions such as SO 4 2-, PO 4 3-, and WO 4 2-has been found to enhance the acidity and certain other physicochemical properties of the catalyst (14)(15)(16). In particular, sulfation of semiconductor photocatalysts is of great interest for scientists because it has an enormous potential for environmental pollutant remediation (17,18). SO 4 2− /TiO 2 has been studied by many groups (14,(17)(18)(19)(20).…”

“…In particular, sulfation of semiconductor photocatalysts is of great interest for scientists because it has an enormous potential for environmental pollutant remediation (17,18). SO 4 2− /TiO 2 has been studied by many groups (14,(17)(18)(19)(20). Mixed zirconium and titanium sulphated oxides are reported as potential catalysts for the free fatty acids esterification reaction (21).…”

Nanogold Loaded, Nitrogen Doped TiO2 Photocatalysts for the Degradation of Aquatic Pollutants Under Sun Light

“…There has been greater attention on the photocatalytic activity of nanocrystalline TiO 2 after the discovery of photodecomposition of water on Titania [Ali, 2009;Hao, 2008;Parida, 2007; However, the high intrinsic band gap energies of major crystalline forms of TiO 2 (3.2 eV for anatase phase and 3.0 eV for rutile) makes them effective photocatalysts only when the wavelengths of light is shorter than 387 nm. Thus only a small part of solar light is harvested if we use bare TiO 2 photocatalysts (Haijian, 2008, as cited in Fujishima & Honda, 1972Li, 2000).…”