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Surface modification of graphene nanoplatelets by organic acids and ultrasonic radiation for enhance uremic toxins adsorption
MARLENE LARIZA ANDRADE GUEL
CHRISTIAN JAVIER CABELLO ALVARADO
VICTOR JAVIER CRUZ DELGADO
JOSE PASCUAL BARTOLO PEREZ
Patricia Adriana De León Martínez
AIDE SAENZ GALINDO
gregorio cadenas_pliego
Carlos Alberto Avila_Orta
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.3390/ma12050715
ULTRASONIC RADIATION
GRAPHENE NANOPLATELETS
ADSORPTION
UREMIC TOXINS
Ultrasound energy is a green and economically viable alternative to conventional techniques for surface modification of materials. The main benefits of this technique are the decrease of processing time and the amount of energy used. In this work, graphene nanoplatelets were treated with organic acids under ultrasonic radiation of 350 W at different times (30 and 60 min) aiming to modify their surface with functional acid groups and to improve the adsorption of uremic toxins. The modified graphene nanoplatelets were characterized by Fourier transform infrared spectroscopy (FT–IR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The optimum time for modification with organic acids was 30 min. The modified nanoplatelets were tested as adsorbent material for uremic toxins using the equilibrium isotherms where the adsorption isotherm of urea was adjusted for the Langmuir model. From the solution, 75% of uremic toxins were removed and absorbed by the modified nanoplatelets.
2019
Artículo
Materials, 12(5), 715, 2019.
Inglés
Andrade-Guel, M., Cabello-Alvarado, C., Cruz-Delgado, V. J., Bartolo-Perez, P., León-Martínez, D., Sáenz-Galindo, A., ... & Ávila-Orta, C. A. (2019). Surface Modification of Graphene Nanoplatelets by Organic Acids and Ultrasonic Radiation for Enhance Uremic Toxins Adsorption. Materials, 12(5), 715.
INGENIERÍA Y TECNOLOGÍA
Versión publicada
publishedVersion - Versión publicada
Aparece en las colecciones: Artículos de Investigación Arbitrados

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