Ag, Zn and Cu nanoparticles synthesized from Eichhornia crassipes leaf extracts and their application in phenol photocatalytic degradation.
Por:
Velazquez-Hernandez, Monserrat, Schabes-Retchkiman, Pablo, Illescas, Javier, Macedo, M. G., Gonzalez-Juarez, J. O., Martinez-Gallegos, Sonia
Publicada:
1 ene 2019
Resumen:
In this study, silver, zinc and copper nanoparticles, AgNPs, ZnNPs and
CuNPs, were tested on photodegradation using phenol as a model
contaminant. The nanoparticles were phytosynthesized from an aqueous
extract of Eichhornia crassipes leaves, and were characterized by
UV-visible spectroscopy, EDS (Dispersive Energy X-ray Spectroscopy), SEM
(Scanning Electron Microscopy), and TEM (Transmission Electron
Microscopy). The AgNPs, ZnNPs and CuNPs showed a characteristic plasmon
determined by UV-Vis; in the case of the EDS analyses Ag, Zn and Cu were
detected as the main components. The detected composition by TEM
corresponded to a metallic oxide for the three nanoparticles. Finally,
for the photocatalytic performance on the phenol degradation under UV
radiation, they showed about 50%, 52% and 34% with a 10 mg/L phenol
solution that was achieved within 200 min using AgNPs, ZnNPs and CuNPs,
respectively.
Filiaciones:
Velazquez-Hernandez, Monserrat:
Tecnol Nacl Mexico, Inst Tecnl Toluca, Div Estudios Posgrad, Av Tecnol S-N, Metepec 52140, Mexico
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City, DF, Mexico
Schabes-Retchkiman, Pablo:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City, DF, Mexico
Illescas, Javier:
Tecnol Nacl Mexico, Inst Tecnl Toluca, Div Estudios Posgrad, Av Tecnol S-N, Metepec 52140, Mexico
Macedo, M. G.:
Tecnol Nacl Mexico, Inst Tecnl Toluca, Div Estudios Posgrad, Av Tecnol S-N, Metepec 52140, Mexico
Gonzalez-Juarez, J. O.:
Tecnol Nacl Mexico, Inst Tecnl Toluca, Div Estudios Posgrad, Av Tecnol S-N, Metepec 52140, Mexico
Martinez-Gallegos, Sonia:
Tecnol Nacl Mexico, Inst Tecnl Toluca, Div Estudios Posgrad, Av Tecnol S-N, Metepec 52140, Mexico
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