Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.528
Publication date: 16th December 2024
Perovskite nanocrystals (NCs) are well known for their exceptional tuneable optical and electronic properties. They can be engineered at the nanoscale to optimize their interaction with light, improving the efficiency of the absorption, transfer, and conversion of energy.
Lead-free metal halide materials, such as Bi- and Sb-based NCs, having an A3B2X9 (A = CH3NH3+, Cs+; B = Sb3+ or Bi3+, X = Cl–, Br–, I–) stoichiometry, have been proposed as good candidates for heterogeneous photocatalysis thanks to their higher chemical stability and better performance than those of Pb-based perovskite NCs. In this context, the ability of colloidal layered structures Cs3Sb2Br9 NCs for the photoreduction of p-substituted benzyl bromide substrate to produce C-C coupling products and the key role of the surface chemistry in facilitating the interaction between the NC and the substrate will be discussed. Moreover, they showed promising activity towards the photocatalytic degradation of organic dyes with good recyclability, preserving their performance and structural properties.
Recently, we have explored the (photo)catalytic potential of a family of perovskite oxides CaxSr01-xTiO3 (x=0-1) doped with iron and cobalt the sublattices. The pollutant degradation (organic dyes) and clorates reduction activity will be also discussed for water remediation.
Financial support by Generalitat Valenciana (CIPROM/2022/57).
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