Preparation and visible-light photocatalytic property of nanostructured Fe-doped TiO2 from titanium containing electric furnace molten slag

Defect mediated mechanism in undoped, Cu and Zn-doped TiO2 nanocrystals for tailoring the band gap and magnetic properties

“…Transition metal (TM) elements can successfully induce changes in the band gap and reports suggest that substitutional doping can alter the optical and magnetic properties of TiO 2 nanocrystals. [7][8][9][10][11][12][13] In general, nanosized semiconductor materials like TiO 2 usually contain a large number of surface oxygen vacancies because of both surface and size effects. The oxygen vacancies strongly affect the electronic states, which modify the optical and magnetic properties.…”

Metallurgical Wastes Employed as Catalysts and Photocatalysts for Water Treatment: A Review

“…Another source of TiO 2 -based, low-cost photocatalysts is electric arc furnace slag. It was found that acidolysis at very low pH (0.05) produces nanorod rutile particles which were active as a photocatalyst in the visible spectrum, due to doping of the rutile phase by Fe and Si which are present as impurities in the process [73]. At higher pH values, a mixture of anatase and rutile was obtained which also showed a lower specific surface area [74].…”

Selective Enrichment and Separation of Ti–Fe Enriched Mineral from Ti-bearing Electric Furnace Slag with Metallic Iron as Carrier

“…There were many processes 1,13) developed or under development all over the world to utilize the titanium resource in TEFS, including the preparation of nanostructured titanium dioxide, the hydrochloric acid leaching of TEFS for titanium dioxide preparation. However, these processes resulted in high costs, poor recovery or environmental pollutions due to the complex interfacial combination of Ti-bearing mineral and gangue in TEFS.…”