Semiconductor titanium dioxide in its basic form or doped with metals and non-metals is being extensively used wastewater treatment by photocatalysis due to versatile nature. Other numerous characteristics including environmentally friendly, non-pernicious, economical, multi-phase, highly hydrophilic, physio-chemical features, chemical stability, suitable band gap, corrosion-resistance, along l...

The effects of dopant content and calcination temperature on Mn-doped TiO2-ZrO2 structure properties were successfully investigated. Composite titania-zirconia was synthesized by sol-gel method. Titanium(IV) isopropoxide used as the precursor TiO2, while zirconiapowder another semiconductor. MnCl2∙4H2O source in this study. Various amounts manganese incorporated into performed at temperatures 5...

The fabrication of small structured spherical particles that are essentially small photonic crystals is described. The particles are 1-50 microm in diameter and are porous with nearly close-packed monodisperse pores whose size is comparable to the wavelength of light. The solid matrix of the particles is titania, which provides a large refractive index contrast between the particle matrix and p...

Colloidal mesoporous silica (CMS) nanoparticles with a thin titania-enriched outer shell showing a spatially resolved functionality were synthesized by a delayed co-condensation approach. The titaniashell can serve as a selective nucleation site for the growth of nanocrystalline anatase clusters. These fully inorganic pure silica-core titania-enriched shell mesoporous nanoparticles show orthogo...

background: many attempts have been performed and continued for improvement of dental amalgam properties during last decades. the aim of present research was fabrication and characterization of amalgam/titania nano composite and evaluation of its corrosion behavior. materials and methods: in this experimental research, nano particles of titania were added to initial amalgam alloy powder and the...

We demonstrate a new design concept where the interaction between silica nanoparticles (about 1.5 nm in diameter) with titania nanoparticles (anatase, about 4 nm or 6 nm in diameter) guides a successful formation of mesoporous titania with crystalline walls and controllable porosity. At an appropriate solution pH (~1.5, depending on the deprotonation tendencies of two types of nanoparticles), t...

Hierarchical nanotubular rutile titania material was fabricated by facile flame burning of ultrathin titania gel film coated cellulose nanofibres of commercial cellulose substance (filter paper), which possesses efficient photocatalytic performance for degradation of organic dye (methylene blue) under ultraviolet irradiation.