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• W3114703384 endingPage "125018" @default.
• W3114703384 startingPage "125018" @default.
• W3114703384 abstract "A novel plasmonic Ag/AgCl@LaFeO 3 (ALFO) photocatalyst was successfully synthesized by a simple in-situ synthesis method with enhanced photocatalytic activity under visible light for harmful algal blooms (HABs) control. The structure, morphology, chemical states, optical and electrochemical properties of the photocatalyst were systematically investigated using a series of characterization methods. Compared with pure LaFeO 3 and Ag/AgCl, ALFO-20% owned a higher light absorption capacity and lower electron–hole recombined rate. Therefore, ALFO-20% had higher photocatalytic activity with a near 100% removal rate of chlorophyll a within 150 min, whose kinetic constant was 15.36 and 9.61 times faster than those of LaFeO 3 and Ag/AgCl. In addition, the changes of zeta potential, cell membrane permeability, cell morphology, organic matter, total soluble protein, photosynthetic system and antioxidant enzyme system in Microcystis aeruginosa ( M. aeruginosa ) were studied to explore the mechanism of M. aeruginosa photocatalytic inactivation. The results showed that ALFO-20% could change the permeability and morphology of the algae cell membrane, as well as destroy the photosynthesis system and antioxidant system of M. aeruginosa . What’s more, ALFO could further degrade the organic matters flowed out after algae rupture and die, reducing the secondary pollution and avoiding the recurrence of HABs. Finally, the species of reactive oxygen species (ROS) (mainly •O 2 - and •OH) produced by ALFO were determined through quenching experiments, and a possible photocatalytic mechanism was proposed. Overall, ALFO can efficiently remove the harmful algae under the visible light, providing a promising method for controlling HABs. • A novel ALFO photocatalyst was synthesized by a simple in-situ synthesis method. • The heterostructure can accelerate carriers transfer and inhibit recombination. • ALFO had much higher photocatalytic activity than pristine LaFeO 3 and Ag/AgCl. • ALFO can effectively inactivate M. aeruginosa and degrade its metabolites. • The mechanisms of charge transfer pathway and inactivation of algae were clarified." @default.
• W3114703384 created "2021-01-05" @default.
• W3114703384 creator A5038460592 @default.
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• W3114703384 date "2021-05-01" @default.
• W3114703384 modified "2023-10-17" @default.
• W3114703384 title "Efficient integration of plasmonic Ag/AgCl with perovskite-type LaFeO3: Enhanced visible-light photocatalytic activity for removal of harmful algae" @default.
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