2026-05-14T10:50:59Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/93392024-07-04T00:05:14Zcom_10259_4313com_10259_5086com_10259_2604col_10259_4314

Guembe García, Marta Utzeri, Gianluca Valente, Artur J. M. Ibeas Cortes, Saturnino Trigo López, Miriam García Pérez, José Miguel Vallejos Calzada, Saúl Textile dyes Smart polymer Hydrogel Acrylic polymers Water pollution from industrial or household waste, containing dyes from the textile industry, poses a significant environmental challenge requiring immediate attention. In this study, we have developed a crosslinked-smart-polymer film based on 2-(dimethylamino)ethyl methacrylate copolymerized with other hydrophilic and hydrophobic commercial monomers, and its efficacy in removing 21 different textile dyes was assessed. The smart polymer effectively interacts with and adsorbs dyes, inducing a noticeable colour change. UV-Vis spectroscopy analysis confirmed a removal efficiency exceeding 90 % for anionic dyes, with external diffusion identified as the primary influencing factor on process kinetics, consistent with both pseudo-first-order kinetics and the Crank-Dual model. Isothermal studies revealed distinct adsorption behaviors, with indigo carmine adhering to a Freundlich isotherm while others conformed to the Langmuir model. Permeation and fluorescence analyses corroborated isotherm observations, verifying surface adsorption. Significantly, our proof-of-concept demonstrated the resilience of the smart-film to common fabric softeners and detergents without compromising adsorption capacity. Additionally, the material exhibited reusability (for at least 5 cycles), durability, and good thermal and mechanical properties, with T5 and T10 values of 265 °C and 342 °C, respectively, a Tg of 168 °C, and a water swelling percentage of 54.3 %, thus confirming its stability and suitability for industrial application. 2024-07-03 2024-07-03 2024-09 info:eu-repo/semantics/article 0304-3894 http://hdl.handle.net/10259/9339 10.1016/j.jhazmat.2024.135006 eng Journal of Hazardous Materials. 2024, V. 476, 135006 https://doi.org/10.1016/j.jhazmat.2024.135006 info:eu-repo/grantAgreement/MIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/BG22%2F00086/ES/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113264RB-I00/ES/DISEÑO, SINTESIS Y CARACTERIZACION DE POLIMEROS INTELIGENTES. APLICACION DE SENSORES QUIMICOS POLIMERICOS EN CONTROL Y SEGURIDAD ALIMENTARIA Y EN EL AMBITO SANITARIO/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/TED2021-129419B-C21/ES/Enfoque curativo para fomentar la economía circular en envases de plástico multicapa/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU025P23//Polímeros inteligentes. Aplicación en seguridad y control alimentario y biomédico, construcción sostenible y biorremediación (pin)/ http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional Elsevier