Potato peel waste as reductant for the biogenesis of gold and silver ultrafine particles

Abstract

Abstract Nanoparticle biosynthesis especially gold and silver nanoparticles has been used progressively due to their assistance including higher firmness, stimulant activity and loading quantity. These ultrafine particles are fabricated using greener chemicals and, in most cost-effective way using potato skin waste extract as reducing and capping agent. The research employs worthless potato skin waste for quick production of nanoparticles at environs temperature. The result of UV–visible spectrophotometer, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray analysis (EDAX), X-ray diffraction analysis (XRD) and Fourier transform infrared spectroscopy (FTIR) aided the green synthesis and depiction of nanoparticles. UV–visible spectral study results for silver nanoparticle synthesis process shows maximum absorbance value around 420–440 nm. Likewise for gold nanoparticles the absorbance value was around 530–560 nm. Based on SEM results the formed gold and silver nanoparticles were spherical in shape and the size of the particle was 20–40 nm range for silver nanoparticle and 10–20 nm range for gold nanoparticle. EDAX spectrum of silver and gold nanoparticles shows higher peaks for silver and gold nanoparticles therefore formed nanoparticles were highly pure. SEM results were consistent with XRD analysis, nanoparticles were having dominant atomic planes phases (1 1 1) and (1 2 2). From the FTIR spectrum it had been observed the formed silver and gold nanoparticles were capped by amide and amine group (i.e. protein). Aldehydes from amylose & amylopectin in potato acting as reducer. One among the interesting feature of the work is it employed vegetable peel waste unlike majority of matured work were limited to the utilization of plant extract.