Silver Nanoparticles from Ultrasonic Spray Pyrolysis of Aqueous Silver Nitrate

Abstract

Silver particles less than 20 nm in diameter were synthesized by pyrolysis of an ultrasonically atomized spray of highly dilute aqueous silver nitrate solution at temperatures above 650• C and below the melting point of silver. Feed solution concentration and ultrasound power applied to the atomizer were found to have a significant impact on the particle size of the silver nanoparticles. Average particle size was found to be controllable in the range of 20 nm to 300 nm by varying the solution concentration and the ultrasound power to the atomizer.

Orta frekans indüksiyon yöntemi ile nano-metal ve nano-metal oksit partikül sentezinin incelenmesi

“…Moreover, the tiny nanoparticles were also detected on the surface of submicron particles as pointed with arrows on the micrograph in Fig 6a. The similar observations were also detected by other researchers [12,13,15]. The possible reason for this type of formation is due to the reaction conditions such as collisions of particles which might lead to break up of primary formed particle clusters.…”

“…[10,11]. Table 1 summarizes the previous reports on the control of the morphology and size of silver particles using the precursor types and precursor concentration in different spray pyrolysis methods [12][13][14][15][16][17][18][19]. As seen in Table 1, the particle sizes highly depend on the precursor concentration (i.e., the lower precursor concentration the smaller particle size) [15][16][17][18][19].…”

Morphological, structural and electrochemical properties of lithium iron phosphates synthesized by Spray Pyrolysis

“…The efficiency of this SP method has been successfully proven in the synthesis of different materials with functional properties [15,16]. 4 , as precursors with addition of nitric acid (pH = 1.5).…”

Prospective of Macedonia for treatment and recycling of tire waste with Pirolitic process

“…Main drawback of the system of waste management which is largely behind the standards that are applied in developed countries, especially during the transitional period of the country. As one of the measures for sustainable management of solid waste is exactly correct choice of system for recycling of solid waste by pyrolysis process to further improve the management of all solid waste (Pingali 2005;Mainord 1994). Pyrolysis plant shown in Figure 1 is installed in the town of Stip, Macedonia.…”