Investigation of the Effects of Different Experimental Conditions on the Final Product of a Chemical Reduction Method Used to Fabricate Silver Nanoparticles
- 35 Downloads
Metallic nanoparticles are a focus of interest for a diversity of scientific fields such as medical, engineering and agricultural fields. For such fields, metallic nanoparticles with controlled sizes are pursued for proper utilization in their prospect applications like radiation detection and drug delivery. In this paper, a parametric study was carried out to investigate the effect of different experimental conditions on the size distribution of metallic nanoparticles fabricated by a chemical reduction method. The study entailed modification of four experimental conditions: concentration of the metal precursor (AgNO3), concentration of the reducing agent (NaBH4), dropping rate of the reducing agent to the precursor solution and reaction temperature. A noticeable increase in the average size was observed with increasing the concentration of the reducing agent, decreasing the dropping rate and increasing the reaction temperature. Other changes were found to have negligible effects. Decreasing both the reaction temperature and the concentration of the reducing agent and increasing the dropping rate led to enhanced monodispersity of the size distribution. Changing the concentration of the metal precursor, on the other hand, had a negligible effect of dispersity. Finally, more particle aggregation was observed for both slow dropping rates and high reaction temperatures.
KeywordsMetallic nanoparticles Chemical reduction method Size distribution Experimental conditions
Gratitude is duly expressed to King Abdullah II Fund for Development (KAFD) for offering the financial support necessary to complete this work and King Abdullah II Design and Development Bureau (KADDB) for their valuable supervision and guidance. This work would have not been possible without their support and assistance.
- 4.Hammig M D, Nanoscale Methods to Enhance the Detection of Ionizing Radiation (2012).Google Scholar
- 7.Marie-Christine D, and Astruc D, Chem Rev104 (2003) 293.Google Scholar
- 9.Hamamoto M, and Yagyu H, in 2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO) (2017), p 632.Google Scholar
- 11.Hong H K, Gong M S, and Park C K, Bull Korean Chem Soc (2009).Google Scholar
- 14.Daraio C, and Jin S, in Nanotechnology for Biology and Medicine (2012), p 27.Google Scholar
- 15.Tan K S, Cheong K Y, J Nanopart Res (2013) 1537.Google Scholar
- 19.Brust M, Walker M, Bethell D, Schiffrin D J, and Whyman R, J Chem Soc, Chem Commun (1994) 801.Google Scholar
- 20.Camargo P H C, Rodrigues T S, da Silva A G M, and Wang J, in Metallic Nanostructures, Springer, Cham (2015), p 49.Google Scholar
- 22.Panigrahi S, in Bachelor Degree Project, no. 10600028 (2010) p 52.Google Scholar