Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(43), С. 15577 - 15590

Опубликована: Окт. 19, 2023

Core–shell heterostructures have attracted great concern as promising visible light-driven photocatalysts. Herein, core–shell nanocomposites of [email protected] with varying SiO2 thickness were rationally designed. Effect modulating the on structural and optical properties was studied. Homogenous layer coated over Sr0.4Ti0.4Mg0.2Fe2O4.4 NPs. HRTEM XRD analyses confirmed successful formation nanocomposites. The photocatalytic performance evaluated by using tetracycline hydrochloride, azure-B, Staphylococcus aureus, Escherichia coli model pollutants. Maximum enhancement in activity observed a nanocomposite having an average shell 24 nm. results supported its higher porosity specific surface area, along narrowed band gap fluorescence quenching. heterojunction promoted charge separation. Under optimized conditions irradiation time, pH, dose, degradation efficiency 96.5% for 96.3% 97.1% S. 95.4% E. coli. Hydroxyl radicals holes played vital role process. parameters Box–Behnken statistical methodology. This work bears broad potential fabricating efficient high-performance photocatalyst ferrite heterostructure.

Язык: Английский

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Fe₃O₄/CuO/Chitosan Nanocomposites: An Ultrasound-Assisted Green Approach for Antibacterial and Photocatalytic Properties

ACS Omega, Год журнала: 2023, Номер 8(45), С. 42429 - 42439

Опубликована: Ноя. 3, 2023

The fundamental goal of this research was to use an environmentally friendly sonochemical method synthesize a Fe3O4/CuO/chitosan magnetic nanocomposite. nanocomposites featured particle sizes ranging from 50 90 nm, and structural characteristics were thoroughly examined. Moreover, the material displayed selective photodegradation capabilities with MB, achieving impressive efficiency nearly 98% within 180 min under specific conditions. Notably, material's reusability remarkable, maintaining approximately 88% even after five cycles. possible mechanism proposed based on evaluation energy bands, along comprehensive analysis impacts MB photodegradation. Concurrently, adsorption isotherms kinetic models evaluated. Additionally, exhibited promising antibacterial activity against Saccharomyces cerevisiae, Bacillus subtilis, Escherichia coli. These findings suggested that could be utilized in real-world scenarios for environmental purification due its ability function as photocatalyst agent.

Язык: Английский

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Formulation of synergetic sodium alginate-based hydrogel in situ doped ZnO and loaded with neomycin: characterizations, control release, and antimicrobial activity

Inorganic Chemistry Communications, Год журнала: 2024, Номер unknown, С. 113161 - 113161

Опубликована: Сен. 1, 2024

Язык: Английский

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Reviewing the advancement of calcium hydroxyapatite-mediated treatment for the remediation of wastewater: applications, degradation kinetics and future perspective

Clean Technologies and Environmental Policy, Год журнала: 2023, Номер 26(11), С. 3697 - 3714

Опубликована: Июль 17, 2023

Язык: Английский

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Peroxymonosulfate activation by low-cost modified rubber during contact electrification for antibiotics efficient degradation at circumneutral pH: Mechanism and toxicity assessment

Chemical Engineering Science, Год журнала: 2023, Номер 285, С. 119642 - 119642

Опубликована: Дек. 17, 2023

Язык: Английский

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