Blue TiO2 nanotube electrocatalytic membrane electrode for efficient electrochemical degradation of organic pollutants

Blue Hierarchical TiO2 Nanotube Array for Significantly Enhanced Electrochemical Oxidation Performance and Stability of Tetracycline Degradation

“…Specifically, with the pH value decreasing from 7 to 3, the degradation kinetic constant decreased from 0.039 to 0.028 min –1 , while with the pH value increasing from 7 to 11, the degradation kinetic constant decreased from 0.039 to 0.029 min –1 instead. The high degradation efficiency under diverse pH values strongly proved that the B-HTNA anode could adapt to a wide pH range . In addition, the contribution of • OH and SO 4 •– in different pH conditions was also studied (Figure i).…”

Novel Sb−SnO2 Electrode with Ti3+ Self‐Doped Urchin‐Like Rutile TiO2 Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

“…Only Ti and O elements are detected from the EDX spectrum (Supporting Information, Figure S2A) with a homogeneous distribution (Figure 2D, E). The atomic percentage of O decreased from 67.3 % (with the atomic ratio of O to Ti was 2.1) to 60.3 % (with the atomic ratio of O to Ti was 1.5) after the reduction process (Supporting Information, Figure S2B), suggesting the formation of oxygen defects and Ti 3+ of the TiO 2‐ x NCs electrode [29] . The EPR spectra of the interlayers are shown in Supporting Information, Figure S2C.…”

“…x NCs electrode. [29] The EPR spectra of the interlayers are shown in Supporting Information, Figure S2C. Compared to TiO 2 NCs, TiO 2-x NCs presented a stronger EPR signal centered on g = 2.004 due to the formation of O V and Ti 3 + .…”

“…[28] We successfully adopted self-doping to introduce Ti 3 + into the TiO 2 lattice to narrow its band gap further and create more oxygen vacancies. [29] These changes improve the TiO 2 NCs electroconductivity to promote the current evenly distribution during electrodeposition. [30] Consequently, the novel SbÀ SnO 2 electrode with Ti 3 + modified TiO 2 NCs as the interlayer (TiO 2-x NCs/SbÀ SnO 2 ) achieved a satisfactory degradation efficiency for i) cationic dyes, rhodamine B (RhB) and methylene blue (MB), and ii) anionic dyes, alizarin yellow R (AYR) and methyl orange (MO).…”

“…The obtained three‐dimensional (3D) TiO 2 nanoclusters not only furnish more active sites for Sb−SnO 2 loading due to their conical structure but are also well‐adapted to decrease the SnO 2 particle size [28] . We successfully adopted self‐doping to introduce Ti 3+ into the TiO 2 lattice to narrow its band gap further and create more oxygen vacancies [29] . These changes improve the TiO 2 NCs electroconductivity to promote the current evenly distribution during electrodeposition [30] .…”