Preparation of size-tunable SnS nanoparticles by a sonochemical method under multibubble sonoluminescence conditions

Abstract SnS nanoaprticles have been synthesized by an environmentally benign sonochemical method under multibubble sonoluminescence conditions. First, SnS nanoparticles were prepared at room temperature by reacting SnCl 2 and thioacetoamide dissolved in ethylene glycol with various ethanolamines such as ethanolamine, diethanolamine, and triethanolamine. The sonochemical reactions were operated at 20 kHz and 220 W for 5 min. Depending on the kind and amount of ethanolamines, SnS nanoparticle sizes in diameter varied within 4–15 nm range. Depending on the SnS nanoparticle size, their bandgap changed from 1.46 to 2.0 eV. These nanoparticles were characterized by a UV–vis spectrophotometer, X-ray diffraction, and high-resolution transmission electron microscopy.