Titanium Dioxide Nanoparticles Doped with Iron for Water Treatment via Photocatalysis: A Review.

Nanomaterials (Basel)

Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma, Via Eudossiana 18, 00184 Roma, Italy.

Published: January 2024

AI Article Synopsis

  • Iron-doped titanium dioxide nanoparticles are effective for photocatalytic applications under visible light, but there are ongoing debates about their manufacturing and the role of Fe ions.
  • The review aims to clarify the influence of iron on key photocatalytic parameters such as nanoparticle size, band gap, and surface area, while determining the optimal amount of iron needed.
  • It also proposes an improved synthesis method specifically for iron-doped titanium oxide, drawing on extensive research and literature analysis.

Article Abstract

Iron-doped titanium dioxide nanoparticles are widely employed for photocatalytic applications under visible light due to their promising performance. Nevertheless, the manufacturing process, the role of Fe ions within the crystal lattice of titanium dioxide, and their impact on operational parameters are still a subject of controversy. Based on these assumptions, the primary objective of this review is to delineate the role of iron, ascertain the optimal quantity, and elucidate its influence on the main photocatalysis parameters, including nanoparticle size, band gap, surface area, anatase-rutile transition, and point of zero charge. Moreover, an optimized synthesis method based on comprehensive data and insights from the existing literature is proposed, focusing exclusively on iron-doped titanium oxide while excluding other dopant variants.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10856646PMC
http://dx.doi.org/10.3390/nano14030293DOI Listing

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