One-step electrosynthesis of visible light responsive double-walled alloy titanium dioxide nanotube arrays for use in photocatalytic degradation of dibutyl phthalate.

ABSTRACT: Using Ti-6Al-4V (TC4) alloy as a substrate, double-walled alloy titanium dioxide nanotube arrays (DW-ATNTAs) with a special porous inner wall and visible light response are synthesized in situ by an improved anodization method. During the anodization, the V element in the TC4 alloy converts into V₂O₅ which dominates the visible light response of DW-ATNTAs. After 3 h of irradiation with visible light, there is a nearly 97% reduction of dibutyl phthalate (DBP) by DW-ATNTAs in which the degradation kinetic constant is 50 and 7 times higher than that of titanium dioxide nanotube arrays (TNTAs) and alloy titanium dioxide layers (A-TiO₂(plate)), respectively. The richly porous inner wall structure of DW-ATNTAs can provide sufficient vacancies for adsorptio

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9054373 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature