RT journal article T1 Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides A1 Djelloul Bencherif, Somia A1 Gallardo Bernal, Juan Jesús A1 Carrillo Berdugo, Iván A1 Bahmani, Abdellah A1 Navas Pineda, Francisco Javier A2 Química Física K1 layered double hydroxides K1 2D materials K1 metal oxides K1 photocatalysis AB The development of new materials for performing photocatalytic processes to remove contaminants is an interesting and important research line due to the ever-increasing number of contaminants on our planet. In this sense, we developed a layered double hydroxide material based on Zn and Cr, which was transformed into the corresponding oxide by heat treatment at 500 & DEG;C. Both materials were widely characterized for their elemental composition, and structural, morphological, optical and textural properties using several experimental techniques such as x-ray diffraction, x-ray photoelectron spectroscopy, scanning and transmission electron microscopy, Fourier transform infrared spectroscopy, UV-vis spectroscopy and physisorption techniques. In addition, the photocatalytic activity of both materials was analysed. The calcined one showed interesting photocatalytic activity in photodegradation tests using crystal violet dye. The operational parameters for the photocatalytic process using the calcined material were optimised, considering the pH, the initial concentration of the dye, the catalyst load, and the regeneration of the catalyst. The catalyst showed good photocatalytic activity, reaching a degradation of 100% in the optimised conditions and showing good performance after five photodegradation cycles. PB MDPI SN 2079-4991 YR 2021 FD 2021-11 LK http://hdl.handle.net/10498/26175 UL http://hdl.handle.net/10498/26175 LA eng NO This research was funded by 2014-2020 ERDF Operational Programme and by the Department of Economy, Knowledge, Business and University of the Regional Government of Andalusia, grant number FEDER-UCA18-107510. DS Repositorio Institucional de la Universidad de Cádiz RD 11-nov-2026