@Article{Godoy-JrPDHGLMBMPS:2023:InHoCa,
               author = "Godoy-Junior, Armstrong and Pereira, Andr{\'e} and Damasceno, 
                         B{\'a}rbara and Horta, Isabela and Gomes, Marcilene and Leite, 
                         Douglas and Miyakawa, Walter and Baldan, Maur{\'{\i}}cio Ribeiro 
                         and Massi, Marcos and Pessoa, Rodrigo and Silva Sobrinho, Argemiro 
                         da",
          affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         Instituto Federal de Educa{\c{c}}{\~a}o, Ci{\^e}ncia e 
                         Tecnologia de S{\~a}o Paulo (IFSP) and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade 
                         Presbiteriana Mackenzie} and {Instituto Tecnol{\'o}gico de 
                         Aeron{\'a}utica (ITA)} and {Instituto Tecnol{\'o}gico de 
                         Aeron{\'a}utica (ITA)}",
                title = "Tailoring Black TiO2 Thin Films: Insights from Hollow Cathode 
                         Hydrogen Plasma Treatment Duration",
              journal = "Plasma",
                 year = "2023",
               volume = "6",
               number = "2",
                pages = "362--378",
                month = "June",
             keywords = "black TiO2, hollow cathode, hydrogen plasma, hydrogenation, 
                         photocatalysis.",
             abstract = "In this study, we report the use of a radiofrequency 
                         plasma-assisted chemical vapor deposition (RF-CVD) system with a 
                         hollow cathode geometry to hydrogenate anatase TiO2 thin films. 
                         The goal was to create black TiO2 films with improved light 
                         absorption capabilities. The initial TiO2 was developed through 
                         magnetron sputtering, and this study specifically investigated the 
                         impact of hollow cathode hydrogen plasma (HCHP) treatment duration 
                         on the crucial characteristics of the resulting black TiO2 films. 
                         The HCHP treatment effectively created in-bandgap states in the 
                         TiO2 structure, leading to enhanced light absorption and improved 
                         conductivity. Morphological analysis showed a 24% surface area 
                         increase after 15 min of treatment. Wettability and surface energy 
                         results displayed nonlinear behavior, highlighting the influence 
                         of morphology on hydrophilicity improvement. The anatase TiO2 
                         phase remained consistent, as confirmed by diffractograms. Raman 
                         analysis revealed structural alterations and induced lattice 
                         defects. Treated samples exhibited outstanding photodegradation 
                         performance, removing over 45% of methylene blue dye compared to 
                         similar to 25% by the pristine TiO2 film. The study emphasized the 
                         significant impact of 15-min hydrogenation on the HCHP treatment. 
                         The research provided valuable insights into the role of 
                         hydrogenation time using the HCHP treatment route on anatase TiO2 
                         thin films and demonstrated the potential of the produced black 
                         TiO2 thin films for photocatalytic applications.",
                  doi = "10.3390/plasma6020025",
                  url = "http://dx.doi.org/10.3390/plasma6020025",
                 issn = "2571-6182",
             language = "en",
           targetfile = "plasma-06-00025.pdf",
        urlaccessdate = "12 maio 2024"
}