Enhanced photoelectrocatalytic degradation of organic pollutants using TiO2 nanotubes implanted with nitrogen ions

Nitrogen ions-implanted TiO 2 nanotubes (TNTs) were prepared by the methods of ion implantation and electrochemical anodic oxidation. The prepared samples were applied in photoelectrocatalytic (PEC) oxidation of methyl blue, rhodamine B and bisphenol A. Compared with pure TNTs, morphology, crystalli...

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Bibliographic Details
Published inJournal of materials science Vol. 55; no. 14; pp. 5843 - 5860
Main Authors Hou, Xinggang, Liu, Xiaoli, Han, Jing, Liu, Huanli, Yao, Jianghong, Li, Dejun, Wang, Liqun, Liao, Bin, Li, Jing, Zhang, Ruijing
Format Journal Article
LanguageEnglish
Published New York Springer US 01.05.2020
Springer Nature B.V
Subjects
Anodizing
Bisphenol A
Characterization and Evaluation of Materials
Chemical Routes to Materials
Chemistry and Materials Science
Circuits
Classical Mechanics
Crystallography and Scattering Methods
Dye-sensitized solar cells
Electronic structure
Ion implantation
Materials Science
Morphology
Nanotubes
Nitrogen
Nitrogen ions
Organic chemistry
Oxidation
Photoelectricity
Photovoltaic cells
Pollutants
Polymer Sciences
Rhodamine
Solid Mechanics
Titanium dioxide
Ultraviolet radiation
Water splitting
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Summary:Nitrogen ions-implanted TiO 2 nanotubes (TNTs) were prepared by the methods of ion implantation and electrochemical anodic oxidation. The prepared samples were applied in photoelectrocatalytic (PEC) oxidation of methyl blue, rhodamine B and bisphenol A. Compared with pure TNTs, morphology, crystallinity, chemical structure, photoelectric and PEC ability of doped samples were greatly promoted because of ion implantation. The experimental results propose that the electronic structure of TiO 2 was modified because of the emergence of impurity states in the band gap by introducing nitrogen into the lattice, leading to the absorption of visible light. The synergy effects of tubular structures, doped nitrogen ions and the bias potential on the circuit are responsible for highly efficient and stable PEC activities induced by visible light and UV light. The doped TNTs prepared using the method of ion implantation could be applied to various areas, such as PEC water splitting and dye sensitized solar cells.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-020-04461-5