Photoinduced reactivity of titanium dioxide
The utilization of solar irradiation to supply energy or to initiate chemical reactions is already an established idea. If a wide-band gap semiconductor like titanium dioxide (TiO2) is irradiated with light, excited electron–hole pairs result that can be applied in solar cells to generate electricity or in chemical processes to create or degrade specific compounds. 
The surface science of titanium dioxide
Titanium dioxide is the most investigated single-crystalline system in the surface science of metal oxides, and the literature on rutile (1 1 0), (1 0 0), (0 0 1), and anatase surfaces is reviewed. 
A structural investigation of titanium dioxide photocatalysts
A study of the structure and the morphology of a titanium dioxide photocatalyst (Degussa P25) reveals multiphasic material consisting of an amorphous state, together with the crystalline phases anatase and rutile in the approximate proportions 8020. 
Cobalt-doped Titanium Dioxide Photochemical Fuel Cell for Wastewater Purification
In this work, a photovoltaic electrochemical fuel cell consisting of a cobalt-titanate (CoTiO3) anode and a platinum (Pt) cathode was utilized for the decomposition of environmentally hazardous materials in wastewater. The CoTiO3 nanotubes (NTs) were prepared through electrochemical oxidation of pure titanium (Ti) strips. The titanium dioxide (TiO2) nanotubes were doped with a cobalt salt via electrospinning followed by annealing to form CoTiO3. The addition of cobalt to the TiO2 NTs was tested to observe 
Photocatalytic Effects of Acrylic Resins Incorporated with Nano-titanium Dioxide on Planktonic and Biofilm Growth of Four Cariogenic Bacteria
Aims: The activities of cariogenic bacteria in biofilm on acrylic baseplates of removable orthodontic appliances and partial denture contribute to dental caries, inflammation of gingiva and periodontal disease. This in vitro study evaluates the Original Research Article Annual Research & Review in Biology, 4(17): 2695-2708, 2014 2696 photocatalytic antimicrobial activity of acrylic specimens (AS) containing NanoTiO2 under ultraviolet type A (UVA) illumination against four cariogenic bacteria. 
 Carp, O., Huisman, C.L. and Reller, A., 2004. Photoinduced reactivity of titanium dioxide. Progress in solid state chemistry, 32(1-2), pp.33-177.
 Diebold, U., 2003. The surface science of titanium dioxide. Surface science reports, 48(5-8), pp.53-229.
 Bickley, R.I., Gonzalez-Carreno, T., Lees, J.S., Palmisano, L. and Tilley, R.J., 1991. A structural investigation of titanium dioxide photocatalysts. Journal of Solid State Chemistry, 92(1), pp.178-190.
 Harara, A.M., Wang, J., Nguyen, M.J., Morales, K.P., Gan, Y.X. and Liu, Y., 2014. Cobalt-doped Titanium Dioxide Photochemical Fuel Cell for Wastewater Purification. Journal of Scientific Research and Reports, pp.3068-3079.
 Bahador, A., Khalil, S., Pourakbari, B., Ghorbanzadeh, R., Kassaee, M.Z., Moghadam, S.O., Khaledi, A. and Sodagar, A., 2014. photocatalytic effects of acrylic resins incorporated with Nano-titanium dioxide on planktonic and biofilm growth of four cariogenic bacteria. Annual Research & Review in Biology, pp.2695-2708.