Facile fabrication of Ag decorated MnFeO3 catalyst: Comparative analysis of visible light driven antibiotic reduction and antibacterial performance

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 358, P. 120891 - 120891

Published: April 22, 2024

Language: Английский

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Organic iron at ultralow doses catalyzes hydrogen peroxide to eliminate cyanobacterial blooms: a study on algicidal effects and mechanisms under natural conditions

Frontiers in Environmental Engineering, Journal Year: 2025, Volume and Issue: 3

Published: Jan. 6, 2025

Hydrogen peroxide (H 2 O ) is gaining recognition as an eco-friendly and highly effective algicide for combating cyanobacterial blooms. This study investigates the algicidal potential of H catalyzed by both inorganic organic iron. Our findings indicate that iron (FeSO 4 shows minimal catalytic activity on under varying light conditions. In contrast, iron, specifically combination , EDTANaFe, irradiation, demonstrates significant effects. The optimal dosages were identified 10 mg/L 3 Fe 3+ .The limited efficacy stems from transformation 2+ to ions via Fenton reaction. Under neutral conditions, precipitate large-sized goethite, which adheres extracellular polymeric substances (EPS) cells, thereby hindering catalysis hydroxyl radical (·OH) formation in natural waters. Conversely, radiation salts greatly enhances efficiency . synergy accelerates decomposition facilitates production a substantial amount OH radicals altering Gibbs free energy. Thus, bright sunny particularly afternoon, are crucial effectively blooms using Fenton-like reagents. methodology presented this offers viable solution global cyanobacteria bloom issues elucidates mechanisms driving its efficacy.

Language: Английский

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Reductive sulfur mediated Fe2+ fixation and regeneration in valorizing waste activated sludge ash to Fe2+@S-doped sodalite material for emerging contaminants degradation: Performance and mechanism

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121438 - 121438

Published: Feb. 1, 2025

Language: Английский

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Enhanced heterogeneous Electro-Fenton catalysis using CNT/MoS2/FeCo-LDH cathode membranes for efficient phenol removal from wastewater

International Journal of Electrochemical Science, Journal Year: 2024, Volume and Issue: 19(7), P. 100633 - 100633

Published: May 9, 2024

Herein, we innovatively crafted a novel CNT/MoS2/FeCo-LDH cathode membrane using facile vacuum filtration method. Benefiting from the unique heterostructure between FeCo-LDH and MoS2, prepared membranes catalyzed production of high-concentration H2O2 (7.59 mg/L) at low current density 1.50 mA/cm2. The peak degradation efficiency phenol (98.80%) was reached in only 60 minutes. Under optimized operating conditions, removal rate remained above 80.00% within wide pH range (3.0-9.0), demonstrating excellent adaptability. synergistic incorporation Mo, Fe, Co ions facilitated additional chemical reaction pathways for Fenton-like reactions, thereby significantly enhancing hydrogen peroxide production. Notably, our approach exhibited moderate total organic carbon efficiency, even actual pretreatment coking wastewater, presenting promising strategy addressing recalcitrant industrial wastewater.

Language: Английский

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Significantly improved H2O2 utilization efficiency over CuFeO2 Fenton-like catalyst through elevating Lewis acidity

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 179, P. 108531 - 108531

Published: May 17, 2024

Language: Английский

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Current understanding and challenges for the utilisation of pyrite for environmental remediation: a review

Environmental Technology Reviews, Journal Year: 2024, Volume and Issue: 13(1), P. 461 - 477

Published: July 15, 2024

Pyrite (FeS2) is the most abundant sulfide mineral in Earth's crust, with a wide distribution. Commonly found mining tailings, pyrite readily available and cost-effective material. Its unique composition, oxidation, adsorption properties have made it promising material for environmental pollution control. This review article examines use of remediation efforts. How serves as Fenton-like reagent, generating reactive oxygen species (ROS) photo-Fenton-like, electro-Fenton-like, photo-electro-Fenton-like, mediated persulfate systems are discussed. The also reviews specific interactions between natural organic substances, such cyanotoxins. Additionally, an adsorbent capturing toxic elements described. potential reducing nitrogen phosphate levels to alleviate water eutrophication summarised. future research directions application management proposed. goal this offer innovative ideas enhancing pollutant treatment technologies developing cost-effective, high-performance methods remediation.

Language: Английский

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Significantly Improved H2o2 Utilization Efficiency Over Cufeo2 Fenton-Like Catalyst Through Elevating Lewis Acidity

Published: Jan. 1, 2024

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Language: Английский

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A Laboratory Experiment Comparing 4 Tert-Butylpyrocatechol in Styrene Using Colorimetric and Chromatographic Methods

Published: Jan. 1, 2024

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Language: Английский

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Innovative on-site colorimetric assay of tetracyclines by smartphones in waters and milks based on a synergistic co-catalyst FeMoO₄@Fe₇S₈ with strong interactions and complexation

Environmental Science Nano, Journal Year: 2024, Volume and Issue: 11(10), P. 4293 - 4308

Published: Jan. 1, 2024

The synthesis of co-catalyst FeMoO 4 @Fe 7 S 8 with strong interactions and complexation the application innovative on-site colorimetric assay tetracyclines by smartphones in waters milks.

Language: Английский

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