Silver selenide nanoparticles: synthesis, characterisation and effect of preparation conditions under ultrasound radiation

Abstract

A convenient sonochemical process for the preparation of silver selenide (Ag 2 Se) nanoparticles by using different complexing agents [NH 3 , citric acid, potassium thiocyanate (KSCN)] and hydrazine as reductant agent is developed. It was found that pure Ag 2 Se nanoparticles were prepared in the presence of KSCN after 90 minutes of sonication. The products were characterised by X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray spectroscopy analysis. Photoluminescence was used to study the optical properties of Ag 2 Se samples.

Very rapid synthesis of highly efficient and biocompatible Ag2Se QD phytocatalysts using ultrasonic irradiation for aqueous/sustainable reduction of toxic nitroarenes to anilines with excellent yield/selectivity at room temperature

“…The size quantization increases the effective bandgap due to the creation of a series of discrete states in the valence and conduction bands [59] . It should be noted that when materials are extremely small like quantum dots, their optical and electronic properties are significantly distracted from their bulky materials [60] .…”

Sonochemical synthesis, characterization and photodegradation of organic pollutant over Nd2O3 nanostructures prepared via a new simple route

“…To the present time, several ways have been reported to produce neodymium oxide such as precipitation, combustion, sol-gel, thermal decomposition and hydrogen plasma-metal reaction [11][12][13][14][15][16][17][18][19]. Ultrasonic irradiation as a striking tool has been utilized to produce the materials with a controlled shape and grain size [20][21][22][23][24][25][26]. Since characteristics of materials are under the influence of shape and grain size, the production of materials with a controlled shape and grain size has been become an especially substantial research field [27][28][29][30][31][32].…”

Synthesis of spherical amorphous selenium nano and microparticles with tunable sizes

“…With the proper dosage it could be even useful itself [5]. Selenium is also a part of some important nanoparticle systems like luminescent CdSe quantum dots [6] or other selenides [7].…”