Abstracts Book - IMRC 2018

• SD7-P041
COLLOIDAL SOLOUTION OF Au-NPs BY GREEN CHEMISTRY
METTHOD
Karla Jenny Lozano Rojas 1 , Arturo García Bórquez 2 , Jesus Israel Guzman Castañeda 3 , Jesus
Roman Lopez 4
1 Instituto Politécnico Nacional - IPN, materials science, Mexico. 2 Instituto Politécnico Nacional -
IPN, Ciencia de Materiales, Mexico. 3 Instituto Politécnico Nacional - IPN - ESIQIE, Formacion
Basica, Mexico. 4 Universidad Nacional Autónoma de México, ICN, Mexico.
The nanoparticles (NPs) are of great importance in nonotechnology, due to their
optical, electronic, magnetic, catalytic properties, etc. Chemical colloidal
methods are based on dissolving a salt of the metal precursor, a reductant and
a stabilizer in a continuous phase (dispersant), looking for new alternatives for
the production of NPs, the green synthesis has been proposed. Au nanoparticles
(Au Nps) were synthesized using HAuCl4, as precursor solution and as reducing
agents grape and rose were used for synthesis by green chemistry. It should be
mentioned that the synthesis was carried out without the incorporation of any
type of dispersant. The reducing agents were selected due to the content of
ascorbic acid they present, which was quantified by calibration curve using an
ascorbic acid standard. Since it has been determined that the ascorbic acid is
the agent that allows the synthesis of NPs. Au NPs were characterized using
Ultraviolet-Visible Spectroscopy (UV-Vis), Transmission Electron Microscopy
(TEM). A plasmon response of 521-525 nm was observed by the UV-Vis
spectroscopic technique, Subsequently through TEM semi-spherical and
triangular forms Au NPs with average sizes of ~ 18 nm were observed. In this
way an alternative method for the synthesis of Au NPs is proposed to employ
any dispersant and that the content of ascorbic acid quantified in the grape and
the rose was necessary to carry out the synthesis of NPs.
Keywords: Au nanoparticles, Green chemistry, UV-Vis
Presenting authors email: j.israelgc@yahoo.com.mx