4.7 Article

Nanocomposite PLA/C20A Nanoclay by Ultrasound-Assisted Melt Extrusion for Adsorption of Uremic Toxins and Methylene Blue Dye

Journal

NANOMATERIALS
Volume 11, Issue 10, Pages -

Publisher

MDPI
DOI: 10.3390/nano11102477

Keywords

nanoclay; poly (lactic acid); uremic toxins; methylene blue; adsorption

Funding

  1. CONACYT [317097]

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The study delved into the synthesis and application of polymeric nanocomposite materials, showing that the sample treated for 120 minutes exhibited the highest degree of modification. Adsorption tests revealed that the chemically modified nanoclay with 5% weight by weight had the best removal rate for uremic toxins and methylene blue.
Design of functional materials it is of great importance to address important problems in the areas of health and environment. In the present work, the synthesis and application of poly-meric nanocomposite materials with poly (lactic acid) (PLA) and modified nanoclay (cloisite 20A) with 1,4-diaminobutane dihydrochloride at different reaction times were studied. The concentra-tions of the nanoclays in the PLA matrix were 0.5, 1 and, 5% by weight (wt%). TGA showed that sample C20AM 120 (120 min of treatment) obtained the highest degree of modification considering the weight losses of the analyzed samples. An FT-IR signal at 1443 cm(-1) suggests that the organic modifier is intercalated between the galleries of the clay. XRD, SEM and XPS suggest good disper-sion at low concentrations of the nanoclay. Adsorption tests revealed that the highest percentage of removal of uremic toxins and methylene blue was the sample with 5% wt/wt chemically modified nanoclay, suggesting good affinity between the modified nanoclays in the PLA matrix with the nitrogenous compounds.

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