Surface modification of ZnO quantum dots coated polylactic acid knitted fabric for photocatalytic application

Rivaldo Leonn Bezerra Cabral, Felipe Mendonça Fontes Galvão, Kesia Karina Oliveira de Souto Silva, Brenno Henrique Silva Felipe, Nivaldo Freire de Andrade Neto, Pierre Basílio de Almeida Fechine, Andrea Zille, Suyeon Kim, José Heriberto Oliveira do Nascimento

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)

Resumen

In this work, ZnO quantum dots (ZnOQD) were synthesized by Sol–gel synthesis and impregnated on polylactic acid (PLA) knitted fabric through self-assembly of different cycles from layer-by-layer (LBL) using cationic agent Poly(diallydimethylammonium chloride) (PDDA). Then, morphological, chemical and photocatalytic properties were studied. The results demonstrate that the synthesis provided 8 nm Wurtzite-type ZnO nanoparticles. In addition, X-ray photoelectron spectroscopy (XPS) spectra, X-ray diffraction (XRD) and scanning electron microscopy (SEM) proved the inclusion of ZnOQD on the surface of PLA matrix, which allowed the evaluation of its photocatalytic properties, therefore, coated PLA with five cycles of ZnOQD obtained the best result for degrading 85% of the dye Rhodamine B (RhB) in 360 min under UV radiation, in addition to its reusability for another five cycles of photocatalytic activity.

Idioma originalInglés
Número de artículoe52381
PublicaciónJournal of Applied Polymer Science
Volumen139
N.º25
DOI
EstadoPublicada - 5 jul. 2022

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