2026-04-17T05:16:23Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1620302025-12-04T20:53:53Zcom_2072_1057col_2072_478796col_2072_478917

00925njm 22002777a 4500 dc Artal López, Raúl author Philippe, Laetitia author Gómez, Elvira author Serrà i Ramos, Albert author 2020-05-22T10:32:58Z 2022-05-15T05:10:17Z 2020-05-15 2020-05-22T10:32:58Z Currently, there is massive generation of persistent organic pollutants, which are hazardous sub-stances, owing to the exponential industrial growth and the associated waste production. Conse-quently, green and reliable strategies for decontaminating wastewater and generating value-added products are needed to realize the global demand of sustainability. In this study, an efficient sustain-able circular process for water remediation with nearly zero residue production is developed using iron-rich cyanobacteria ashes. These cyanobacteria ashes are obtained from the combustion of Ar-throspira platensis var lonar and are used as Fenton-like photocatalysts in different assisted photo-Fenton reactions (processes enhanced by light). The use of these iron-rich cyanobacteria ashes is par-ticularly effective for the sono-enhanced photo-Fenton processes for water remediation (mineraliza-tion > 94.9%), with an outstanding reusability. At the end of the effective lifetime of the photocata-lyst, the remaining ashes can be subsequently reused as a supplement during the growth of new cy-anobacteria, thus closing the circular process. The proposed approach is a green and sustainable pro-cess integrating both carbon dioxide fixation and clean-water production aimed at attaining sustain-able development. Fotocatàlisi Depuració de l'aigua Photocatalysis Water purification Recycled cyanobacteria ashes for sono-enhanced photo-Fenton wastewater decontamination