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Anionic and cationic pollutants degradation via TiO2 nanoleafed nanorods

Daneshvar e Asl, S ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1016/j.solidstatesciences.2020.106263
  3. Publisher: Elsevier Masson SAS , 2020
  4. Abstract:
  5. Hierarchical TiO2 nanoleafed nanorod thin film was successfully synthesized on the fluorine doped tin oxide glass substrate. For this purpose, the nanorods were coated on the TiO2 seeded substrate via the hydrothermal method. Then, nanoleafs were grown on the nanorods by aqueous chemistry. Field emission scanning electron microscopy, energy dispersive spectroscopy, and Raman spectroscopy were utilized for thin film characterization. The results clarified that anatase-phase nanoleafs were uniformly grown on the rutile-phase nanorods in the TiO2 coating. The photocatalytic performance of the thin film was determined by photodegradation of anionic and cationic organic pollutants, and the photocatalytic decomposition mechanisms of the dyes were discussed. The improved photocatalytic activity of TiO2 was ascribed to the photogenerated charges separation at the interface of rutile-nanorod/anatase-nanoleafs junctions and favorable light harvesting. © 2020 Elsevier Masson SAS
  6. Keywords:
  7. Methyl orange ; Nanoleafed nanorod arrays ; Photodegradation ; Rhodamine B ; Decomposition ; Energy dispersive spectroscopy ; Field emission microscopes ; Nanocomposites ; Nanorods ; Organic pollutants ; Oxide minerals ; Photocatalytic activity ; Scanning electron microscopy ; Substrates ; Tin oxides ; Titanium dioxide ; Cationic pollutants ; Field emission scanning electron microscopy ; Fluorine doped tin oxide ; Hydrothermal methods ; Photocatalytic decomposition ; Photocatalytic performance ; Photogenerated charge ; Thin-film characterization ; Thin films
  8. Source: Solid State Sciences ; Volume 105 , 2020
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1293255820304118