2026-04-17T04:08:31Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1513852025-11-19T20:34:11Zcom_2072_1057col_2072_478796col_2072_478917

00925njm 22002777a 4500 dc Serrà i Ramos, Albert author Pip, Petai author Gómez, Elvira author Philippe, Laetitia author 2020-02-27T17:19:07Z 2020-02-27T17:19:07Z 2020-02-09 2020-02-27T17:19:07Z A hybrid magnetic-ZnO-based photocatalyst platform is designed for the efficient and simultaneous sunlight-driven photoremoval of cyanobacteria and mineralization of cyanotoxins (anatoxin-A). The photocatalyst killing ability was evaluated against two types of microalgae with different morpholo-gy and toxicity, Spirulina platensis paracas and Anabaena flos-aquae. The hybrid photocatalyst Ni@ZnO@ZnS-Spirulina was synthetized by means of a multistep process using Spirulina as bio-template. The effects of reactor geometry, magnetic actuation, and concordant architecture on pho-tokilling ability were tested. Moreover, the prepared photocatalysts were demonstrated to be effective for the anatoxin-A degradation under artificial sunlight. In the interest of reducing waste content and optimizing resources, photocatalyst recycling after their useful lifetime has ended is proposed through the fabrication of microalgal biofuel-pellets. This inexpensive circular process involves mul-ti-functional algae-based photocatalysts applied to the simultaneous destruction of algae blooms and cyanotoxins and then recycled to close the circle through cultivating biotemplates. Fotocatàlisi Òxid de zinc Microalgues Photocatalysis Zinc oxide Microalgae Efficient magnetic hybrid ZnO-based photocatalysts for visible-light-driven removal of toxic cyanobacteria blooms and cyanotoxins