Influence of Anode Area and Electrode Gap on the Morphology of TiO₂ Nanotubes Arrays

Abstract

In order to fabricate the titanium dioxide (TiO2) nanotubes arrays which were used in the photocatalytic degradation of total volatile organic compounds (TVOC) by anodization, the influence of the electrode gap and anode area on the morphology of the titanium dioxide (TiO2) nanotubes was studied. Titanium dioxide (TiO2) nanotube arrays were prepared by anodization with various electrode gaps and anode areas. Field emission scanning electron microscopy was used to investigate the morphology of the TiO2nanotubes arrays. The results showed that the morphology of TiO2nanotubes arrays was influenced by electrode gap and anode area. The appropriate anode area and electrode gap were 5 cm × 2 cm and 20 mm, respectively. Thus, TiO2nanotube arrays with better morphology (with larger dimension and uniform TiO2nanotubes) were successfully fabricated by anodic oxidation with 5 cm × 2 cm anode area and 20 mm electrode gap at 30 V.

Synthesis of bi-component ZrO2/Ag nanotube for heavy metal removal

“…The anode and cathode were put in the prepared electrolyte, and two electrodes were kept away at 20 mm. This electrode gap ensures the formation of ZrO2 nanotubes arrays with better morphology, large dimension and uniform ZrO2 nanotubes [24]. 40V of potential was supplied by high-voltage direct-current potentiostat using a sweep rate of 0.1 V/s for 0.5 hours and 1 hour.…”

High-Performance Stable Field Emission with Ultralow Turn on Voltage from rGO Conformal Coated TiO2 Nanotubes 3D Arrays

“…It shows much improved FE properties than those obtained from pure TiO 2 NTAs and rGO nanostructures. The morphology, dimensions and structural parameters of TiO 2 NTAs are easily controlled by anodic oxidation parameters such as anodic voltage, oxidation time and electrolyte composition 38 39 40 . An anodic oxidation process has been used extensively for the rapid production of aligned TiO 2 nanotubes because it has a good controlled pore size, uniformity and conformability over large areas.…”