An efficient approach to control the morphology and the adhesion properties of anodized TiO2 nanotube arrays for improved photoconversion efficiency

Photocatalytic conversion and kinetic study of CO2 and CH4 over nitrogen-doped titania nanotube arrays

“…The obtained nanotube arrays reveal highly ordered and vertically oriented morphology with inside diameter ranging from 3 to 50 nm. It can be seen distinctly that after nitrogen-doping electrochemical process, the nanotube arrays keep its structural integrity as similarly observed previously (Zhu et al, 2011).…”

Fabrication of hierarchical porous anodized titania nano-network with enhanced active surface area: Ruthenium-based dye adsorption studies for dye-sensitized solar cell (DSSC) application

“…The same trend follows in 1:5, 1:10, 1:15 ratios. Therefore, the conductivity is found to increase with increasing aging voltage as well as with higher HF content, which is apparently due to the higher field-assisted dissolution of Ti ions and hence higher Ti-F complex formation at larger aging voltage/HF content within the aged electrolytes [42]. Additionally, the use of aged electrolytes greatly improved the adhesion between nanotubes and the underlying Ti metal substrate, which further improved the photoconversion efficiency [42].…”

“…Additionally, the use of aged electrolytes greatly improved the adhesion between nanotubes and the underlying Ti metal substrate, which further improved the photoconversion efficiency [42]. This trend shows that the conductivity of the electrolyte increases with anodization duration and smaller interelectrode spacing [41][42][43][44]. In the present study, the conductivity of aged HF/glycerol mixtures increased with anodization voltage and HF content due to the faster reaction rate, and decreased with higher glycerol content because of the inhibition of the reaction via an increase in the internal resistance of the electrolyte [43].…”

Effect of Anodization Parameters on Morphology and Photocatalysis Properties of TiO2 Nanotube Arrays

“…Although the electrochemical technique is simple and effective to obtain nano-tubular structures, some problems could arise due to the reproducibility of the prepared surfaces. The morphology of a semiconductor directly influences its performance in the photocatalytic oxidation of organic compounds [16] . It is well-known that the morphology of nanostructure depends on the operative conditions: applied potential, electrolyte composition and anodization time [17] .…”