Characterization and photocatalytic activity of large-area single crystalline anatase TiO2 nanotube films hydrothermal synthesized on Plasma electrolytic oxidation seed layers

Chemical Gas Sensors Studied at SENSOR Lab, Brescia (Italy): From Conventional to Energy-Efficient and Biocompatible Composite Structures

“…A few methods, such as the electrochemical anodization [36][37][38][39], atomic layer deposition (ALD) [40][41][42] and hydrothermal synthesis [43][44][45] have been developed for the preparation of metal oxide nanotubes [45][46][47][48][49][50][51]. ALD is a template-assisted technique for the synthesis of nanotubular arrays and requires post-processing separation of the obtained tubes from the template [52].…”

“…ALD is a template-assisted technique for the synthesis of nanotubular arrays and requires post-processing separation of the obtained tubes from the template [52]. The fabrication of well-ordered metal oxide nanotubes with the homogeneous tube-size distribution over the substrate by the hydrothermal growth method is difficult [15,50]. Instead, the electrochemical anodization method was applied to obtain highly ordered metal oxide nanotubes in ambient conditions without using vacuum techniques [53,54].…”

A novel photo-thermochemical cycle for the dissociation of CO 2 using solar energy

“…This method, which is based on the transfer behaviour of photo-induced EHPs, detects the separation and recombination of the charge carriers. Based on the PL generation mechanism, PL phenomena can be divided into two types: band-band PL and excitonic PL [28,29]. Band-band PL, which originates in the electron transfer from the conduction band (CB) to the higher valence band (VB), entails the separation and recombination of the charge carriers.…”

Synthesis of Ag-decorated porous TiO2 nanowires through a sunlight induced reduction method and its enhanced photocatalytic activity

“…However, the low surface area and quick recombination of photo-induced electron-hole pairs hinder the application of the commercial TiO 2 photocatalysts [12]. In contrast, nanoscaled porous TiO 2 with small size and large surface area always have higher electron-hole pair separation efficiency and higher photocatalytic activity [13].…”