Removal of Ibuprofen from Water by Different Types Membranes

Abstract

Ibuprofen separation from water by adsorption and pertraction processes has been studied, comparing 16 different membranes. Tailor-made membranes based on Matrimid, Ultem, and diaminobenzene/diaminobenzoic acid with various contents of zeolite and graphene oxide, have been compared to the commercial polystyrene, polypropylene, and polydimethylsiloxane polymeric membranes. Experimental results revealed lower ibuprofen adsorption onto commercial membranes than onto tailor-made membranes (10–15% compared to 50–70%). However, the mechanical stability of commercial membranes allowed the pertraction process application, which displayed a superior quantity of ibuprofen eliminated. Additionally, the saturation of the best-performing commercial membrane, polydimethylsiloxane, was notably prevented by atomic layer deposition of (3-aminopropyl)triethoxysilane.

Controlling Nanoscale Pore Size and Wall Composition in Polycarbonate Membranes via Atomic Layer Deposition and Sequential Infiltration Synthesis: Implications for High Water Permeance

“…Polymer membranes are widely used in diverse fields such as water desalination and water/gas purification, , oil–water separation, drug separation in the pharmaceutical industry, templates for flexible electronics, , energy storage, and conversion. − Surface modification of polymer membranes is an effective method to tune the physiochemical properties, including pore size, surface charge, chemical affinity (e.g., hydrophilicity/hydrophobicity), and charge transport. These properties dictate the membrane performance by controlling key attributes, such as liquid or gaseous flux, degree of solute rejection, electrical/ionic conductivity, and fouling behavior.…”

Síntesis y caracterización de materiales basados en TiO<SUB>2</SUB> y g-C<SUB>3</SUB>N<SUB>4</SUB> inmovilizado en carbón activado para la eliminación de contaminantes de origen farmacéutico

“…La presencia de PhCA es una problemática global que ha fomentado el desarrollo de diferentes estudios sobre la degradación o eliminación completa de fármacos como IB y DI en medio acuoso. En la literatura pueden encontrarse diferentes estrategias para la eliminación de estas sustancias en agua como, procesos de oxidación (Qiu et al, 2020;Trovó y Nogueira, 2011;Vogna et al, 2004), degradación electroquímica (C. F. Chang et al, 2017), fotodegradación (Trovó y Nogueira, 2011;Vogna et al, 2004) y ultrafiltración por membrana (Bourassi et al, 2021;Vergili, 2013). Desafortunadamente, estas tecnologías presentan algunos inconvenientes relacionados con altos costos de operación, la posible lixiviación de sustancias químicas y la generación de subproductos tóxicos.…”