REMOCIÓN DE VERDE MALAQUITA USANDO UN COMPOSITO MAGNETITA/NANOPLAQUETAS DE GRAFENO
Palabras clave:
verde malaquita, adsorción, compósito, magnetita/nanoplaquetas de grafenoResumen
Los ecosistemas acuáticos y la salud humana se han deteriorado debido a la presencia de contaminantes en el ambiente. Ante esta problemática, se han desarrollado diferentes técnicas de tratamiento y remediación, entre las cuales la adsorción ha demostrado ser una de las más eficientes y de menor costo. En este proyecto se reporta la aplicación del proceso de adsorción para la eliminación del colorante verde malaquita (VM), presente en soluciones acuosas, utilizando como material adsorbente un compósito de magnetita y nanoplaquetas de grafeno (NPG). Dicho compósito fue preparado en una proporción de 40/60 % m/m mediante mecanosíntesis durante una hora a 3000 rpm. Las condiciones experimentales incluyeron una dosis de material adsorbente de 2 g/L en un medio con pH neutro, una concentración inicial de 1000 ppm de VM y temperatura ambiente. Los resultados obtenidos evidenciaron una eficiencia de remoción del 67,5 % (qe = 303 mg/g); además, los datos experimentales se ajustaron al modelo matemático de pseudo-segundo orden. De esta manera, el estudio confirma el potencial del compósito a base de magnetita y grafeno como una alternativa viable y prometedora para la depuración de aguas contaminadas con colorante VM, contribuyendo al cumplimiento de los Objetivos de Desarrollo Sostenible de la Agenda 2030 relacionados con el acceso al agua limpia.
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