Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.072
Publication date: 16th December 2024
The huge expansion of nanotechnology calls for searching processes that can reduce the environmental impact of the syntheses employed to obtain nanocrystals (NCs).
In this contribution, we present the preparation of lead halide perovskites (CsPbX3, X = Cl, Br, I) in limonene, a molecule extracted from natural sources and considered a green solvent. [1] The synthesized NCs resemble the same structural, optical and morphological properties of the homologues prepared in the common solvents, i.e. 1-octadecene. In particular, the NCs resemble cubic morphologies and possess a considerable photoluminescence quantum yield (> 80% for CsPbBr3). Exploiting the relatively high volatility of the limonene, we verified that it can be quantitatively removed from the NCs just by vacuum pumping and demonstrated the possibility of recovering from the waste of the reactions the pure solvent that can be reused for subsequent syntheses. In addition, the substitution of 1-octadecene with limonene as the reaction solvent was analyzed by examining the consequences of the environmental impact of the entire synthesis process through a Life Cycle Assessment (LCA).
Fondazione Compagnia di San Paolo, Bando TRAPEZIO project NANOPLUS - ID#118000 and National Recovery and Resilience Plan (NRRP), funded by the European Union – NextGenerationEU, CUP - D33C22001330002 project title “Network 4 Energy Sustainable Transition – NEST”.
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