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Antimony Doped Tin Oxide Nanoparticles Deposited onto Nb−TiO 2 Nanotubes for Electrochemical Degradation of Bio‐refractory Pollutions
Author(s) -
Xu Li,
Yi Yan,
Liang Gaorui,
Zhang Wen
Publication year - 2020
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201900775
Subject(s) - materials science , linear sweep voltammetry , antimony , anode , cyclic voltammetry , tin , dielectric spectroscopy , chronoamperometry , tin oxide , titanium , electrochemistry , oxide , titanium oxide , chemical engineering , inorganic chemistry , electrode , metallurgy , chemistry , engineering
To improve the service life of SnO 2 −Sb electrodes in degradation of refractory wastewater, we report anodic information of tin oxide antimony on top of Nb−TiO 2 nanotubes (Nb−Ti/Nb−TiO 2 −NTs/ATONPs) prepared through screen‐printing. It was found that the Nb−Ti/Nb−TiO 2 −NTs/ATONPs anodes presented a significantly enhanced in electro‐catalytic oxidation performance (in Acid Red 73) compared to titanium‐based tin antimony electrodes (Ti/ATONPs). Additionally, the electrochemical properties and the stability were further studied by the electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), cyclic voltammetry (CV), chronoamperometry (CA) measurements and accelerated life test, respectively. These results indicated that Nb−TiO 2 −NTs/ATONPs anode possessed Nb−TiO 2 nanotubes which exhibited a higher oxygen evolution potential (2.24 V vs. Ag/AgCl), as well as a better wettability, a larger current at constant potential and 2.1 times longer lifetime than the conventional Ti/ATONPs anode.