Study on the morphology and photocatalytic activity of TiO2 nanotube arrays produced by anodizing in organic electrolyte with Ni, Na, and C as dopants
- 30 Downloads
The main purpose of this research work is to investigate the effect of nickel as metal dopant on the morphology and photocatalytic activity of TiO2 nanotube arrays synthesized in the organic electrolyte by anodizing process containing sodium carbonate as an additive (TNAS). In order to characterize the synthesized nanotubes, various analyses such as FESEM, XRD, FTIR, XPS, DRS, and EIS were applied. The results of XPS and FTIR tests evaluate the participation of sodium (Na), nickel (Ni), and carbon (C) in the lattice of nanotubes as dopants. According to the DRS and UV-visible tests results, the band gap energy of TiO2 nanotube arrays decreases from 3.20 to ~ 2.64 eV as well as the absorption edge extends from UV-light region (396 nm) to visible light region (510 nm). However, the photocurrent density of doped TiO2 nanotubes increased about 10 times higher than that of the pristine compounds.
KeywordsDoped TiO2 nanotube arrays Nickel sulfate Sodium carbonate Band gap energy Photocurrent density
The authors are grateful to the corrosion and processing and extraction of materials and laboratories of the Department of Material Science and Engineering at Sharif University of Technology.
- 16.Lee K, Mazare A, Schmuki P (2014) ChemRev 114:9385–9454Google Scholar
- 17.Tan YN, Wong CL, Mohamed AR (2011) Int Sch Res Notices 2011:55–73Google Scholar
- 22.Shalini S, Prabavathy N, Balasundaraprabhu R, Satish Kumar T, Walke P, Prasanna S, Velayuthapillai D (2016) J Mater Sci Mater Electron 16:1–9Google Scholar
- 23.ZY, JF, TS, LC, JZBX (2010) ACS Appl Mater Interfaces 2 :617–2622Google Scholar
- 28.Alitabar M (2017) Yoozbashizadeh. H New J Chem 17:1182–1186Google Scholar
- 32.Kemary M, Nagy N, El-Mehasseb I (2013) Material Sci Semiconduc Proc16, pp 1747–1752Google Scholar
- 34.Mengyao Wu TD, Ye C, Wen Q, Yu W, Xin H (2016) Desalin Water Treat 57:116–125Google Scholar
- 36.Dewei C, Adnan Y, Sean L (2012) J Phys D Appl Phys 45:355–366Google Scholar
- 39.How GTS, Pandikumar A, Ming HN, Ngee LH (2014) Sci Rep 4:44–50Google Scholar