The CuO/ZnO and CuO/ZnO/biochar materials for water treatment

• Autores: Lang J., Cruz G.J.F., Solis J.L.
• Formato: artículo
• Fecha de Publicación: 2020
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/2590
• Enlace del recurso: https://hdl.handle.net/20.500.12390/2590; https://doi.org/10.1088/1742-6596/1433/1/012010
• Nivel de acceso: acceso abierto
• Materia: General Physics and Astronomy; http://purl.org/pe-repo/ocde/ford#2.04.01

The research of new materials and methods for water treatment is necessary. Two sets of materials were prepared. The one set is composed from CuO/ZnO oxides with variable content of CuO and the second set consists of its biochar impregnated counterparts. The structure and phase composition was determined using X-ray diffraction method and morphology of the materials was studied using scanning electron microscopy. The photodegradation activity and adsorption properties were tested on model pollutant - Methylene blue (MB) dye solution. The experimental kinetic of the data was analyzed using pseudo-first-order and pseudo-second-order kinetic models and the equilibrium data was evaluated using Langmuir, Freundlich and Dubinin-Radushkievic models. It was found that optimal material for photodegradation of MB is 1% CuO/ZnO oxide and for the adsorption of MB is the best material raw corn cob biochar. © Published under licence by IOP Publishing Ltd.