Dendrimer encapsulated Silver nanoparticles as novel catalysts for reduction of aromatic nitro compounds

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Asharani, I.V.^1 ; Thirumalai, D.^2 ; Sivakumar, A.^1

Department of Chemistry, School of Advanced Sciences, VIT University, Vellore

632 014, India^1

Department of Chemistry, Thiruvalluvar University, Vellore

632 115, India^2

关键词: Aromatic nitro compounds;    Chemical reduction methods;    Nitro compounds;    Nitro-aromatics;    Novel catalysts;    Reduction reaction;    Silver nanoparticles (AgNps);    Stabilizing agents;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/2/022010/pdf
DOI  :  10.1088/1757-899X/263/2/022010

来源: IOP

【 摘 要 】

Polyethylene glycol (PEG) core dendrimer encapsulated silver nanoparticles (AgNPs) were synthesized through normal chemical reduction method, where dendrimer acts as reducing and stabilizing agent. The encapsulated AgNPs were well characterized using TEM, DLS and XPS techniques. The synthesized AgNPs showed excellent catalytic activity towards the reduction of aromatic nitro compounds with sodium borohydride as reducing agent and the results substantiate that dendrimer encapsulated AgNPs can be an effective catalyst for the substituted nitro aromatic reduction reactions. Also the kinetics of different nitro compounds reductions was studied and presented.