Maximizing photocatalytic efficiency with minimal amount of gold: Solar-driven TiO2 photocatalysis supported by MICROSCAFS® for facile catalyst recovery

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(2), С. 112043 - 112043

Опубликована: Янв. 25, 2024

Multicomponent oxide (i.e., SiO2-TiO2) microspheres with interconnected meso and macroporosity, called MICROSCAFS®, are attractive for various applications. Here, we present them as robust efficient catalyst supports, facilitating straightforward purification of wastewater through solar-driven photocatalysis, an easy recovery reuse. We report on the immobilization titanium dioxide (TiO2) gold nanoparticles (Au NPs) into MICROSCAFS® their characterization using analytical techniques. The supported catalysts were tested solar (1 sun) photocatalytic degradation two different pollutants: organic dye methyl orange (MO) antibiotic minocycline (MC). results showed that presence Au NPs, in nominal concentrations between 0.02 0.08 wt.%. improved performance, achieving up to 20% higher MO, compared sample without gold. In case MC, observed initial 45.5% adsorption, followed by complete photodegradation under irradiation less than 1 h. also demonstrated good recyclability, performance decreased adsorption tendency subsequent cycles. transformation products (TPs) elucidated high-resolution mass spectrometry experiments. For generation three TPs, lower toxicity aquatic species, while MC there only which completely removed within 2 h irradiation. Overall, this study highlights potential photocatalyst support pollutants light

Язык: Английский

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Sunlight assisted degradation of methylene blue dye by zinc oxide nanoparticles green synthesized using Vitex negundo plant leaf extract

Results in Chemistry, Год журнала: 2024, Номер 7, С. 101315 - 101315

Опубликована: Янв. 1, 2024

Zinc oxide nanoparticles (ZnO NPs) were formed through a simple green synthesis route using Vitex negundo (V. negundo) leaf extract as reducing and capping source. Morphological, structural, chemical optical features of prepared ZnO NPs examined by field emission SEM, XRD, EDAX, PL, FTIR UV-vis DRS, respectively. FESEM images precisely visualized morphology the spherical with particles size ranges between 5 35 nm having mean diameter ∼19 nm. XRD pattern revealed formation hexagonal wurtzite structured high crystallinity. Asymmetric stretching vibration Zn-O bond analysis confirmed NPs. Catalytic activity was assessed against methylene blue (MB) dye degradation under natural sunlight illumination. Results photocatalytic experiment disclosed an impressive MB efficiency 98.50% at 60 min. Moreover, synthesized exhibited maximum mineralization (TOC removal) 92.34% h

Язык: Английский

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Porphyrin-Based Metal-Organic Framework Materials: Design, Construction, and Application in the Field of Photocatalysis

Molecules, Год журнала: 2024, Номер 29(2), С. 467 - 467

Опубликована: Янв. 17, 2024

Metal-organic frameworks (MOFs) are a novel category of porous crystalline materials with an exceptionally high surface area and adjustable pore structure. They possess designable composition can be easily functionalized different units. Porphyrins conjugated tetrapyrrole macrocyclic structures absorb light from ultraviolet to visible regions, their properties facilely regulated by altering peripheral groups or central metal ions. Porphyrin-based MOFs constructed porphyrin ligands nodes combine the unique features porphyrins as well overcoming respective limitations. This paper reviewed design construction, absorption charge transfer pathways, strategy for improving photocatalytic performance porphyrin-based MOFs, highlighted recent progress in field CO

Язык: Английский

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Investigations of nickel silicate for degradation of water-soluble organic pollutants

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 61, С. 307 - 315

Опубликована: Март 1, 2024

Язык: Английский

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Eggshell waste materials-supported metal oxide nanocomposites for the efficient photocatalytic degradation of organic dyes in water and wastewater: A review

Bioresource Technology Reports, Год журнала: 2024, Номер 26, С. 101865 - 101865

Опубликована: Май 19, 2024

Язык: Английский

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A comprehensive review of nanomaterials for efficient heavy metal ions removal in water treatment

Journal of Water Process Engineering, Год журнала: 2024, Номер 64, С. 105566 - 105566

Опубликована: Июнь 7, 2024

Язык: Английский

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An efficient multifunctional SnS2/g-C3N4 hierarchical nanoflower catalyst for electrocatalytic and photocatalytic applications

Ceramics International, Год журнала: 2024, Номер 50(19), С. 36004 - 36017

Опубликована: Июль 2, 2024

Язык: Английский

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Green nanocatalyst for the photocatalytic degradation of organic pollutants in petroleum refinery wastewater: Synthesis, characterization, and optimization

Journal of Molecular Structure, Год журнала: 2024, Номер 1304, С. 137688 - 137688

Опубликована: Янв. 30, 2024

Язык: Английский

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Photocatalytic Degradation of Rhodamine B Using ZnCo2O4/N-doped g-C3N4 Nanocomposite

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 24, 2024

Язык: Английский

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Recent Trends in TiO2 Focused S-scheme Heterojunctions for Photocatalytic Innovations: A Comprehensive Analysis

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178876 - 178876

Опубликована: Янв. 1, 2025

Язык: Английский

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