Highly Efficient and Reproducible Sonochemical Synthesis of ZnO Nanocrystals.

Autor: Fioravanti A; Institute of Sciences and Technologies for Sustainable Energy and Mobility (STEMS), National Research Council (CNR), Via Canal Bianco, 28, 44124, Ferrara, Italy., Mazzocchi M; Institute of Science, Technology and Sustainability for Ceramics (ISSMC), National Research Council (CNR), Via Granarolo, 64, 48018, Faenza, Italy., Marani P; Institute of Sciences and Technologies for Sustainable Energy and Mobility (STEMS), National Research Council (CNR), Via Canal Bianco, 28, 44124, Ferrara, Italy., Pedrielli F; Institute of Sciences and Technologies for Sustainable Energy and Mobility (STEMS), National Research Council (CNR), Via Canal Bianco, 28, 44124, Ferrara, Italy., Carotta MC; Institute of Sciences and Technologies for Sustainable Energy and Mobility (STEMS), National Research Council (CNR), Via Canal Bianco, 28, 44124, Ferrara, Italy., Sacerdoti M; Department of Physics and Earth Science, University of Ferrara, Via G. Saragat, 1, 44122, Ferrara, Italy., Valsania MC; Department of Chemistry, University of Turin, Via P. Giuria, 7, 10125, Turin, Italy., Morandi S; Department of Chemistry, University of Turin, Via P. Giuria, 7, 10125, Turin, Italy.
Jazyk: angličtina
Zdroj: ChemPlusChem [Chempluschem] 2024 Jul; Vol. 89 (7), pp. e202400005. Date of Electronic Publication: 2024 Apr 06.
DOI: 10.1002/cplu.202400005
Abstrakt: Sonochemical synthesis can be a facile, fast, efficient, versatile and economical way to prepare a large variety of conventional or novel nanostructured materials (metallic, magnetic, semiconducting, polymeric, etc.). In this work, zinc oxide nanocrystals were synthesized by irradiating and heating at 90 °C in a commercial ultrasonic bath a water solution of zinc nitrate hexahydrate and ammonia solution or hexamethylenetetramine as base catalysts. The evolution of the powder morphology and its crystalline structure were investigated at different times of ultrasonic irradiation (0-9 hours) and compared with those of samples obtained by only heating the solutions in a muffle furnace in order to enlighten the growth mechanism. It resulted that: i) the crystal morphology depends on the selected base, ii) for samples obtained by using ultrasounds, the homogeneity of the powders depends on the irradiation time, iii) by comparing all samples obtained at 7 hours of heating, the aspect ratio of the crystals is higher for those that also underwent to ultrasounds.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
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