A totally green synthesis protocol has been adopted to obtain silver nanoaggregates capped by the natural compound (1E, 6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5- diene), also known as curcumin. The synthesis process has been monitored by means of infrared, Raman, visible and fluorescence spectroscopies. Characterization confirms that curcumin reduces and caps the nanoparticles and such procedure allows its solubility in water and drastically increases the curcumin stability. Silver nanoparticles (AgNPs)/curcumin complex has been dispersed in a water solution containing a known nickel ion concentration. After three days a grey precipitate is observed and the nickel concentration in the solution is reduced of about 70%.
Drastic Nickel Ion Removal From Aqueous Solution By Curcumin-Capped Ag Nanoparticles
BETTINI, SIMONA;PAGANO, ROSANNA;VALLI, Ludovico;GIANCANE, Gabriele
2014-01-01
Abstract
A totally green synthesis protocol has been adopted to obtain silver nanoaggregates capped by the natural compound (1E, 6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5- diene), also known as curcumin. The synthesis process has been monitored by means of infrared, Raman, visible and fluorescence spectroscopies. Characterization confirms that curcumin reduces and caps the nanoparticles and such procedure allows its solubility in water and drastically increases the curcumin stability. Silver nanoparticles (AgNPs)/curcumin complex has been dispersed in a water solution containing a known nickel ion concentration. After three days a grey precipitate is observed and the nickel concentration in the solution is reduced of about 70%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
