A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO₂-Based Photocatalysts for Photodegradation of Contaminants

ACS Omega, Год журнала: 2024, Номер 9(24), С. 25457 - 25492

Опубликована: Июнь 6, 2024

The environment being surrounded by accumulated durable waste organic compounds has become a critical crisis for human societies. Generally, effluents of industrial plants released into the water source and air are removed some physical chemical processes. Utilizing photocatalysts as cost-effective, accessible, thermally/mechanically stable, nontoxic, reusable, powerful UV-absorber creates new gateway toward removal dissolved, suspended, gaseous pollutants even in trace amounts. TiO2 ZnO two prevalent field removing contaminants from wastewater air. Structural modification with metals, nonmetals, metal ions, other semiconductors reduces band gap energy agglomeration increases affinity composite structures to expand their usability on an scale. This extent light absorbance improves photocatalytic efficiency. Selecting suitable synthesis method is necessary prepare target photocatalyst distinct properties such high specific surface area, numerous functional groups, appropriate crystalline phase. In this Review, significant parameters TiO2- ZnO-based discussed detail. Several proposed mechanistic routes according provided. Some electrochemical analyses using charge carrier trapping agents delayed recombination help plot direction photoexcited species (electron–hole pairs) design more effective processes terms cost-effective photocatalysts, saving time increasing productivity.

Язык: Английский

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Amoxicillin adsorption from aqueous solution by Cu(II) modified lemon peel based activated carbon: Mass transfer simulation, surface area prediction and F-test on isotherm and kinetic models

Powder Technology, Год журнала: 2024, Номер 438, С. 119589 - 119589

Опубликована: Март 5, 2024

Язык: Английский

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A State-of-The-Art Review on Green Synthesis and Modifications of ZnO Nanoparticles for Organic Pollutants Decomposition and CO2 Conversion

Journal of Hazardous Materials Advances, Год журнала: 2025, Номер unknown, С. 100588 - 100588

Опубликована: Янв. 1, 2025

Язык: Английский

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Highly Selective Pb(II) Adsorption by DTPA-Functionalized Graphene Oxide/Carboxymethyl Cellulose Aerogel

Langmuir, Год журнала: 2024, Номер 40(15), С. 8002 - 8014

Опубликована: Апрель 3, 2024

Graphene oxide (GO) exhibits a strong adsorption capacity for the removal of heavy metal ions from liquids, making it topic increasing interest among researchers. However, significant challenge persists in preparation graphene oxide-based adsorbents that possess both high structural stability and excellent capacity. In this paper, green environmentally friendly ternary composite aerogel based on was successfully synthesized. The enhanced through diethylenetriaminepentaacetic acid modification, while incorporation carboxymethyl cellulose improved liquid. demonstrates robust interactions between its components features multiscale porous structure. Adsorption tests conducted with Pb(II) revealed GO/DTPA/CMC (GDC) favorable study kinetics isotherms indicated process follows quasi-secondary model Freundlich model, suggesting chemical multilayer mechanism, maximum 521.917 mg/g quasi-quadratic kinetic fitting. X-ray photoelectron spectroscopy (XPS) scanning electron microscopy (SEM) analyses, performed before after adsorption, confirmed primarily occurs chelation, complexation, proton exchange, electrostatic active sites such as hydroxyl carboxyl groups. This presents an innovative strategy simultaneously enhancing properties aerogels ensuring solution stability.

Язык: Английский

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Engineered design of MnFe2O4/CoNiFe-LTH/g-C3N4 heterocatalyst for doxycycline degradation via Fenton oxidation process: Optimization and mechanism

Surfaces and Interfaces, Год журнала: 2024, Номер 51, С. 104528 - 104528

Опубликована: Май 25, 2024

Язык: Английский

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2D–2D g-C3N4/WS2 Z-scheme heterojunction: Comparison of the photocatalytic degradation of tetracycline and sulfamethoxazole

Journal of Photochemistry and Photobiology A Chemistry, Год журнала: 2024, Номер 456, С. 115818 - 115818

Опубликована: Июнь 6, 2024

Язык: Английский

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Phenolic Modified SiO₂ Aerogel as a Hybrid Thermal Insulation Systems

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

SiO2 aerogel is a good thermal insulation material, but its porous nanostructure makes it brittle and has poor mechanical property. with elastic property was prepared by combining methyltrimethoxysilane (MTMS) hexadecyltrimethoxysilane to form composite organic silane precursor. However, properties were not significantly improved. SiO2/phenolic-modified modifying thermosetting phenolic resin, which effectively improved the of aerogel. The results show that when molar ratio MTMS in range 0–0.05, continue improve increase introduction hexadecyltrimethoxysilane. maximum compressive strength can reach 0.03 MPa, strain tolerance 10–18%. When mass resin within 0–5.5, modified presents nanoscale gel network structure. 0.048 nearly 60% higher than before modification. allowable 14.7–17.5%. After 20 stress–strain tests, only decreases 4%, indicating stability. It simultaneously possessing low density (0.176 g/cm3), volume shrinkage rate, conductivity. conductivity an air atmosphere at 28 °C 0.057 W/(m·K). sol–gel reaction atmospheric drying process broad application prospects.

Язык: Английский

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Magnetically enhanced Fe3O4@ZnO and Fe3O4@[email protected] composites for efficient UV and visible light photodegradation of methyl orange and ofloxacin

Chemosphere, Год журнала: 2025, Номер 377, С. 144365 - 144365

Опубликована: Апрель 4, 2025

Язык: Английский

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Synergistic efficiency of functionalized MWCNT stimulated ZnFe2O4/BiOBr heterostructure for enhanced removal of brilliant green and tetracycline hydrochloride

Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Июнь 1, 2024

Язык: Английский

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Recent advances and future trends in metal oxide photocatalysts for removal of pharmaceutical pollutants from wastewater: a comprehensive review

Environmental Geochemistry and Health, Год журнала: 2024, Номер 46(9)

Опубликована: Авг. 10, 2024

Язык: Английский

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