A ‘one pot’ gel combustion strategy towards Ti3+ self-doped ‘black’ anatase TiO2−x solar photocatalyst
作者： Sanjay Gopal Ullattil , Pradeepan Periyat
DOI: 10.1039/C6TA01993E
关键词: Tem analysis 、 Anatase 、 X-ray photoelectron spectroscopy 、 Materials science 、 Doping 、 Raman spectroscopy 、 Photocatalysis 、 Inorganic chemistry 、 Diethylene glycol 、 Combustion
摘要: A one pot gel combustion synthetic strategy has been developed for the first time towards rapid formation of self-doped black anatase TiO2−x (BAT) using titanium butoxide, diethylene glycol (DEG) and water as only precursors. This swiftly formed nanoplatform was occupied with a high concentration surface defect sites, especially Ti3+ oxygen vacancy sites in excess. The (lattice) out (surface) states were confirmed by Raman, XPS TEM analysis. These defect-enriched features enabled 33% more photocatalytic activity BAT than commercially available photocatalyst Degussa-P25 under solar illumination.
rsc.org
sci-hub.se 参考文章(39)
Vinodkumar Etacheri, Cristiana Di Valentin, Jenny Schneider, Detlef Bahnemann, Suresh C. Pillai, Visible-light activation of TiO2 photocatalysts: Advances in theory and experiments Journal of Photochemistry and Photobiology C-photochemistry Reviews. ,vol. 25, pp. 1- 29 ,(2015) , 10.1016/J.JPHOTOCHEMREV.2015.08.003
Wenzhi Ren, Yong Yan, Leyong Zeng, Zhenzhi Shi, An Gong, Peter Schaaf, Dong Wang, Jinshun Zhao, Baobo Zou, Hongsheng Yu, Ge Chen, Eric Michael Bratsolias Brown, Aiguo Wu, A Near Infrared Light Triggered Hydrogenated Black TiO2 for Cancer Photothermal Therapy Advanced Healthcare Materials. ,vol. 4, pp. 1526- 1536 ,(2015) , 10.1002/ADHM.201500273
Apurba Sinhamahapatra, Jong-Pil Jeon, Jong-Sung Yu, A new approach to prepare highly active and stable black titania for visible light-assisted hydrogen production Energy and Environmental Science. ,vol. 8, pp. 3539- 3544 ,(2015) , 10.1039/C5EE02443A
Rengui Li, Yuxiang Weng, Xin Zhou, Xiuli Wang, Yang Mi, Ruifeng Chong, Hongxian Han, Can Li, Achieving overall water splitting using titanium dioxide-based photocatalysts of different phases Energy and Environmental Science. ,vol. 8, pp. 2377- 2382 ,(2015) , 10.1039/C5EE01398D
Ryuhei Nakamura, Akihito Imanishi, Kei Murakoshi, Yoshihiro Nakato, In situ FTIR studies of primary intermediates of photocatalytic reactions on nanocrystalline TiO2 films in contact with aqueous solutions. Journal of the American Chemical Society. ,vol. 125, pp. 7443- 7450 ,(2003) , 10.1021/JA029503Q
Suman Thakur, Niranjan Karak, Tuning of sunlight-induced self-cleaning and self-healing attributes of an elastomeric nanocomposite by judicious compositional variation of the TiO2–reduced graphene oxide nanohybrid Journal of Materials Chemistry. ,vol. 3, pp. 12334- 12342 ,(2015) , 10.1039/C5TA02162F
Pradeepan Periyat, K. V. Baiju, P. Mukundan, P. Krishna Pillai, K. G. K. Warrier, Aqueous colloidal sol-gel route to synthesize nanosized ceria-doped titania having high surface area and increased anatase phase stability Journal of Sol-Gel Science and Technology. ,vol. 43, pp. 299- 304 ,(2007) , 10.1007/S10971-007-1583-1
Sami Rtimi, Jelena Nesic, Cesar Pulgarin, Rosendo Sanjines, Michael Bensimon, John Kiwi, Effect of surface pretreatment of TiO
2
films on interfacial processes leading to bacterial inactivation in the dark and under light irradiation Interface Focus. ,vol. 5, pp. 20140046- 20140046 ,(2015) , 10.1098/RSFS.2014.0046
Ronnen Levinson, Paul Berdahl, Hashem Akbari, None, Solar spectral optical properties of pigments—Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements Solar Energy Materials and Solar Cells. ,vol. 89, pp. 319- 349 ,(2005) , 10.1016/J.SOLMAT.2004.11.012
Zhouguang Lu, Cho‐Tong Yip, Liping Wang, Haitao Huang, Limin Zhou, None, Hydrogenated TiO2 Nanotube Arrays as High‐Rate Anodes for Lithium‐Ion Microbatteries ChemPlusChem. ,vol. 77, pp. 991- 1000 ,(2012) , 10.1002/CPLU.201200104