Title :
Formation of silver nanoparticles induced by ultrasonically treated sodium dodecyl benzene sulphonate
Author :
Shun Zhang ; Keli Yang ; Quansheng Liu
Author_Institution :
Coll. of Chem. Eng., Inner Mongolia Univ. of Technol., Huhhot, China
Abstract :
A simple and novel method for the synthesis of silver nanoparticles (AgNPs) was investigated, using only ultrasonically treated aqueous solutions of sodium dodecyl benzene sulphonate (UT-SDBS) as both reducing and stabilizing agents at 100°C. The obtained AgNPs were characterised by their size and morphology. The results have shown that well-dispersed AgNPs were produced with a narrow size distribution of about 3-9 and 2-13 nm using AgAc and AgNO3 as precursors, respectively. The intermediates generated in the UT-SDBS solution served as the reducing radicals. The reduction ability of intermediates was determined by the ultrasonic time of SDBS. Most of the intermediates were produced in the first 1 h of ultrasonic irradiation, the reduction ability of UT-SDBS-1h was sufficient at this stage. However, by increasing the ultrasonic time to 8 h resulted in further decomposition of intermediates and in the decrease of its reduction ability.
Keywords :
nanofabrication; nanoparticles; particle size; silver; ultrasonic applications; Ag; decomposition; reducing agents; reducing radicals; silver nanoparticles; size distribution; stabilizing agents; temperature 100 degC; time 1 h; time 8 h; ultrasonic time; ultrasonically treated aqueous solutions; ultrasonically treated sodium dodecyl benzene sulfonate;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2015.0115