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The presence of hazardous chemicals in wastewater produced by industrial activities and human metropoles is threating the availability of safe drinking water. The development of a multifunctional material coupling adsorption and photocatalytic activity is hereby particularly promising for the removal of pollutants. We have proved the adsorption and catalytic activity of NiFe2O4-layered double hydroxide (LDH) composite through the degradation of methyl orange (MO) at room temperature under visible light. This degradation is enhanced by using a set of small light-emitting diodes (LEDs) providing a uniform 405 nm UV light. The remediation process is based on a first-step rapid adsorption of MO molecules by the LDH structures followed by the photocatalytic oxidation of the pollutant by the (·OH) radicals produced by the NiFe2O4 semiconductor nanoparticles (NPs). The magnetic properties of the ferrite NPs allow a facile separation of the composite from the liquid media via a simple magnet. NiFe2O4-LDH composite could find wide application as a highly effective adsorbent/oxidizing catalyst operating under visible or near UV light.

La insólita situación derivada de la crisis COVID-19, ha obligado a docentes y alumnos a reinventarse, utilizando nuevos métodos de enseñanza y aplicando tecnologías en línea que permitan un aprendizaje a distancia eficiente. Como consecuencia, en la asignatura práctica Experimentación en Ingeniería Química II, del Grado en Ingeniería Química, las explicaciones teóricas necesarias para llevar a cabo la experimentación, se han realizado de forma online y sincrónica mediante la plataforma Microsoft Teams, como paso previo a la asistencia al laboratorio. Las sesiones se grabaron y se pusieron a disposición de los alumnos para su consulta. Así, se minimizó el contacto físico entre alumno y profesor y entre alumnos. Por otro lado, en la asignatura Regulación de Procesos Químicos, se ha modificado la evaluación de las prácticas de simulación y, en lugar de pedir a los alumnos informes extensos, se les solicitó completar un cuestionario en Moodle. Abstract The unusual situation derived from the COVID-19 crisis has forced teachers and students to reinvent themselves, using new teaching methods and applying online technologies that allow an efficient distance learning. As a consequence, in the practical subject Experimentation in Chemical Engineering II, of the Degree in Chemical Engineering, the theoretical explanations necessary to carry out the experimentation have been carried out online and synchronously through the Microsoft Teams platform, as a prior step to attendance to the laboratory. The sessions were recorded and made available to the students for their consultation. Thus, physical contact between student and teacher and between students was minimized. On the other hand, in the subject Regulation of Chemical Processes, the evaluation of simulation practices has been modified and, instead of asking students for extensive reports, they were asked to complete a questionnaire in Moodle.