Lead hydroxyl compounds are known as rutile flotation of the traditional activated component, but the optimum pH range for flotation is 2–3 using styryl phosphoric acid (SPA) as collector, without lead hydroxyl compounds in slurry solution. In this study, Bi3+ ions as a novel activator was investigated. The results revealed that the presence of Bi3+ ions increased the surface potential, due to ...

With ethanol as a probe molecule, the surface sites of anatase and rutile can be distinguished using (13)C CP/MAS NMR spectroscopy, which offers an opportunity to investigate the transfer of photo-induced electrons from rutile to anatase in the mixed-phase TiO2.

Direct splitting of pure water into hydrogen and oxygen was demonstrated using the rutile TiO2 powder under band gap irradiation. The successful water splitting results at least in part from the intrinsic properties of the rutile surface that is less sensitive to photoreduction of O2, a reverse reaction in water splitting.

The nanoparticles of Ti-Si mixed oxides (NTSO) with Rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. The solid product was characterized by XRD, FTIR, SEM, TEM, UV, TGA and laser Raman spectroscopy. The catalytic activity of NTSO (5-10 nm) was investigated in the epoxidation of cis stilbene, trans stilbene, and norbornene by using oxidants such as t...

Abstract Pure and Cu doped anatase/rutile mixed TiO 2 nanomaterials were fabricated through sol-gel method. The obtained photocatalysts characterized by XRD, SEM, TEM, XPS, PL DRS, the influences of doping on structure photocatalytic property studied. results show that when molar ratios Cu/Ti are 1% 2%, promotes anatase → rutile phase transformation. When ratio is 4%, transformation inhibited. ...

The application of pressure in solid-state synthesis provides a route for the creation of new and exciting materials. However, the onerous nature of high-pressure techniques limits their utility in materials discovery. The systematic search for novel oxynitrides-semiconductors for photocatalytic overall water splitting-is a representative case where quench high-pressure synthesis is useful and ...

TiO2 thin films are promising as photocatalysts to decompose organic compounds. In this study, were deposited by reactive radio-frequency (RF) magnetron sputtering under various flow rates of oxygen and argon gas. The results show that the photocatalytic activity decreases oxygen-gas ratio is increased 30% or less, while increases oxygen-rich conditions. It was observed crystal structure change...