caa a22 4500 463233050 CHVBK 20180405153248.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-1286-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-1286-y Photocatalytic inhibition of microbial fouling by anodized Ti6Al4V alloy [Elektronische Daten] [Judy Gopal, Rani George, P. Muraleedharan, S. Kalavathi, S. Banerjee, R. Dayal, H. Khatak] Biofouling is one of the major concerns in the use of titanium, an excellent material with respect to corrosion resistance and mechanical properties, for seawater-cooled condensers of power plants. Earlier studies conducted in our laboratory have shown that anodized titanium with a thin film of anatase (TiO2) inhibits attachment of Pseudomonas sp. of bacteria when illuminated with near-UV light (350-380nm) from black light blue (BLB) florescent lamps. The following work compares the photocatalytic efficiencies of anodized commercially pure titanium (grade 2) and Ti6Al4V alloy, in order to understand the role of the alloying elements such as Al and V on the photocatalytic activity in relation to inhibition of microbial attachment. The study was carried out by employing both methylene blue (MB) dye degradation as well as microbial adhesion experiments under near-UV light illumination. The results have shown that the anodized Ti6Al4V surfaces showed an order of magnitude increase in photocatalytic activity, as shown by the decrease in microbial attachment compared to titanium grade-2. The oxide film on both the surfaces has been characterized using Glancing Incidence X-ray Diffraction (GIXRD) and Atomic Force Microscopy (AFM). The GIXRD and AFM results showed that the oxide formed on anodized Ti6Al4V surface has higher crystallinity and is composed of particles, which are smaller in size; both these attributes are reported to enhance the photocatalytic activity. Since, vanadium is reported to shift the photo-response of the photoactive anatase thin film into visible range, the photocatalytic activity of anodized Ti6Al4V was also studied under visible light and it was observed that the surfaces showed significant photocatalytic activity even under visible light. Springer Science+Business Media, LLC, 2007 Gopal Judy Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut George Rani Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Muraleedharan P. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Kalavathi S. Materials Science Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Banerjee S. Materials Science Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Dayal R. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Khatak H. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5152-5158 0022-2461 42:13<5152 2007 42 10853 https://doi.org/10.1007/s10853-006-1286-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1286-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gopal Judy Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- George Rani Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- Muraleedharan P. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- Kalavathi S. Materials Science Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- Banerjee S. Materials Science Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- Dayal R. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 700 1- Khatak H. Corrosion Science and Technology Division, Materials Characterization Group, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5152-5158 0022-2461 42:13<5152 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer