@article {Karunakaran:2012:2158-5849:319, title = "Hot-Injection Synthesis of Bactericidal Sn-Doped TiO2 Nanospheres for Visible-Light Photocatalysis", journal = "Materials Express", parent_itemid = "infobike://asp/me", publishercode ="asp", year = "2012", volume = "2", number = "4", publication date ="2012-12-01T00:00:00", pages = "319-326", itemtype = "ARTICLE", issn = "2158-5849", url = "https://www.ingentaconnect.com/content/asp/me/2012/00000002/00000004/art00007", doi = "doi:10.1166/mex.2012.1084", keyword = "DISINFECTION, SN-TIO2, E. COLI, PHOTOCATALYST, PHOTODEGRADATION", author = "Karunakaran, Chockalingam and Sakthiraadha, Sakthidasan and Gomathisankar, Paramasivan", abstract = "Sn-doped (5, 10, 15, and 20 at.%) TiO2 nanospheres have been synthesized by hot-injection method and the optimum doping level for visible light photocatalyis is found to be 15%. The energy dispersive X-ray spectrum confirms the presence of Sn and its composition in the prepared nanospheres. The X-ray diffraction pattern reveals Sn-doping of TiO2 which is in rutile phase. Replacement of Ti4+ by Sn4+ results in enlargement of unit cell volume. The doped oxide exhibits blue as well as green emission due to oxygen vacancies. The specific conductance and capacitance of 15% Sn-doped TiO2 are larger than those of pristine TiO2. The synthesized nanosphere is also found to act as a bactericide; it kills E. coli cells effectively in the absence of direct illumination.", }