Decrypting the growth of anodic TiO2 nanotube layers in eco-friendly fluoride-free nitrate-based electrolyte for enhanced photocatalytic degradation of organic pollutants

0574154 - ÚACH 2024 RIV GB eng J - Journal Article
Thirunavukkarasu, Guru Karthikeyan - Hanif, M. B. - Liapun, V. - Hensel, K. - Kupčík, Jaroslav - Lorinčík, J. - Elantyev, I. - Monfort, O. - Motola, M.
Decrypting the growth of anodic TiO2 nanotube layers in eco-friendly fluoride-free nitrate-based electrolyte for enhanced photocatalytic degradation of organic pollutants.
Materials Research Bulletin. Roč. 165, SEP (2023), č. článku 112322. ISSN 0025-5408. E-ISSN 1873-4227
Research Infrastructure: CzechNanoLab II - 90251; CICRR - 90241
Institutional support: RVO:61388980
Keywords : Anodization * Fluoride-free electrolyte * Methylene blue degradation * Nitrate-based electrolyte * Photocatalysis * TiO nanotube layers 2
OECD category: Inorganic and nuclear chemistry
Impact factor: 5.4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.materresbull.2023.112322

Anodic TiO2 nanotube (TNT) layers were prepared in eco-friendly fluoride-free organic-aqueous-based electrolytes containing cerium ammonium nitrate. Nanotubes with controllable morphology (tube diameter and tube length) and surface features (porosity and surface roughness) were obtained by varying percentual ratios of ethylene glycol (Ex%) and water (Wy%) in the electrolyte (Ex%Wy%). Obtained TNT layers were studied for photocatalytic degradation of methylene blue (MB) under UVA irradiation. The most promising, TNT layers were prepared in E75%W25% electrolyte with a thickness of approx. 1.9 μm with a tube diameter of approx. 33 nm, and exhibited the highest photocatalytic degradation rate (k = 0.0151 min−1).
Permanent Link: https://hdl.handle.net/11104/0344498