Abstracts Book - IMRC 2018

• SF5-O024
DEGRADATION OF ORGANOPHOSPHORUS COMPOUNDS
WITH METALLIC NANOPARTICLES
Juan Rizo Estrada 1,2 , David Diaz 1 , Benito Reyes Trejo 3
1 Facultad de Química, UNAM, Departamento de Inorgánica, Mexico. 2 Instituto Tecnológico y de
Estudios Superiores de Monterrey, Escuela de Ingeniería y Ciencias, CCM, Mexico. 3 Universidad
Autónoma de Chapingo, Laboratorio de Productos Naturales, Área de Química, Mexico.
A simple and inexpensive one-step degradation of organophosphorus
compounds (OPs) was achieved through an aqueous suspension of metallic
nanoparticles (MNPs). 1 H nuclear magnetic resonance (NMR) results show that
the hydrolysis of OPs was achieved and it was confirmed by 31 P NMR. The
procedure used for the preparation of cuprous oxide nanoparticles was that of
Benedict’s reagent (Benedict, 1909), with variations that include different
amounts of salts, sugar, and solvents (H 2 O and DMSO). It is important to point
out that different ratio mixture of H 2 O and DMSO are used to obtain NPs of
different sizes. The degradation of OPs was achieved through a 250 mL aqueous
solution of OPs (1.5x10 -4 M) containing 26 mg of MNPs (1.8x10 -4 mol). The
degradation of OPs with metallic nanoparticles varies with nanoparticle size. The
degradation products of are identified through 1 H and 31 P nuclear magnetic
resonance. The quantification of the degradation was achieved through UVvisible
absorption. Characterization of MNPs before and after the degradation
was achieved through X-ray powder diffraction (XRD).
Acknowledgment:
Juan Rizo Estrada would like to acknowlege CONACyT for the graduate
scholarship 240056.
Keywords: Metallic Nanoparticles, Organophosphorus Compounds, Degradation
Presenting authors email: j.rizo@comunidad.unam.mx