1. Sato S, Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y (2002) Photo-catalysts sensitive to visible light. Science 295(5555):626–627
2. Castro ME (2006) Kinetics and mechanism of ion exchange process and resin deactivation during ultra-purification of water, PhD dissertation, Chemical Engineering, The University of Arizona
3. Burda C, Lou Y, Chen X, Samia A, Stout J, Gole J (2003) Enhanced nitrogen doping in TiO2 nanoparticles. Nano Lett 3(8):1049–1051
4. Ihara T, Miyoshi M, Iriyama Y, Matsumoto O, Sugihara S (2003) Visible-light-active titanium oxide photo-catalyst realized by an oxygen-deficient structure and by nitrogen doping. Appl Catal B Environ 42(4):403–409
5. Kusakabe K, Aso S, Wada T, Hayashi J, Morooka S, Isomura K (1991) Destruction rate of volatile organochlorine compounds in water by ozonation with ultraviolet radiation. Water Res 25(10):1199–1203