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

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178876 - 178876

Published: Jan. 1, 2025

Language: Английский

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Acquiescent tailoring of TiO2 band gap via surged NiSe NPs decoration for accelerated photocatalytic degradation of methyl orange

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 107001 - 107001

Published: Jan. 15, 2025

Language: Английский

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Research Progress in Photocatalytic-Coupled Microbial Electrochemical Technology in Wastewater Treatment

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 81 - 81

Published: Jan. 16, 2025

Photocatalytic-coupled microbial electrochemical systems (MESs) represent an emerging wastewater treatment technology which aims to address the limitations of traditional methods, such as inadequate removal refractory pollutants and excessive energy consumption. This realizes simultaneous degradation in bioenergy recovery, demonstrating significant potential for development. However, practical application this is currently hindered by challenges including insufficient electrical power output, poor stability photoelectric electrodes, design amplified systems. review comprehensively examines common coupling methods principles photocatalytic-coupled Compared previous studies, it provides a detailed analysis optimal configurations treating containing various components, recalcitrant organic compounds, heavy metals, nitrates, achieve maximum efficiency. Moreover, summarizes synergistic effects observed between photocatalysis MES that enhance efficiency through pathways, increasing difference cytochromes, promoting formation conductive nanowires, accelerating electron transfer rates, inhibiting electron–hole recombination. Finally, highlights applications proposes future research directions facilitate further development technology.

Language: Английский

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A Comparative Study of GO/TiO₂/SiO₂ Catalysts for the Photocatalytic Degradation of Methylene Blue and Phenolic Compounds

Environmental Quality Management, Journal Year: 2025, Volume and Issue: 34(3)

Published: Feb. 12, 2025

ABSTRACT This study scrutinizes the photodegradation efficacy of methylene blue (MB) and selected phenolic compounds, emphasizing variables such as pH, catalyst dosage, initial pollutant concentration. Employing a GO/TiO₂/SiO₂ composite (NC‐II) composed 50:50% TiO₂ SiO₂, research identifies NC‐II optimal catalyst, achieving up to 100% degradation MB under ideal conditions (0.5 ppm concentration, pH 10). For degradation, maximal rates were recorded alkaline (pH 8–10), with reaching 84.6% at 10, surpassing 46.5% observed for NC‐I 37.7% NC‐III same level. Results also indicate that an increase in dosage 0.3 g enhances rates, 63.7% this contrast 17.8% 53.1% NC‐III. In case efficiencies varied between 55% 86%, demonstrating highest capability, 86% Bisphenol A dosage. The 4‐chlorophenol phenol was more pronounced neutral (5–6), zero‐order kinetics producing superior regression coefficients ( R 2 = 0.91–0.99) compared pseudo‐first‐order models. Moreover, maintained over 80% efficiency across five reusability cycles, underscoring its durability minimal decline performance. substantiates TiO₂:SiO₂ composites cost‐effective, high‐performance catalysts suitable diverse environmental conditions, where adjustments can further refine different types.

Language: Английский

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New Advances into Nanostructured Oxides, 2nd Edition

Inorganics, Journal Year: 2025, Volume and Issue: 13(2), P. 60 - 60

Published: Feb. 16, 2025

The interest in inorganic nanostructured oxides is growing extensively, thanks to their remarkable features and wide range of applications, which include (photo)catalysis [...]

Language: Английский

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Photothermal Catalysis of Cellulose to Prepare Levulinic Acid-Rich Bio-Oil

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 857 - 857

Published: March 23, 2025

As a carbon-neutral and renewable raw material, cellulose can be transformed into biomass fuels to reduce the dependence on fossil carbon dioxide emissions. In view of harsh reaction conditions, low selectivity product, easy deactivation catalyst, this study studied use photothermal catalytic technology convert bio-oil rich in levulinic acid. It was discovered that synergistic effect between heating photocatalysis is present degradation. Different metals were loaded nanotubes doped with titanium prepare different catalysts, their effects compared. found TiO2-CNT platinum metal exhibited highest performance. By adopting Pt/TiO2-CNT as conversion rate reached 99.44%, LA 44.41% at 220 °C for 3 h. catalysis increased H/C ratio decreased O/C liquid calorific value 21.01 MJ/kg. This promote further industrial application lignocellulose fuel oil decrease environmental pollution caused by massive consumption fuels.

Language: Английский

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TiO2-MWCNTs/ PVDF: Photophysical properties, photocatalytic activity, and recycling in industrial effluent wastewater treatment by different photocatalytic sources

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 65, P. 105905 - 105905

Published: Aug. 1, 2024

Language: Английский

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Photocatalytic Degradation of Sulfamethoxazole by Cd/Er-Doped Bi2MoO6

Coatings, Journal Year: 2024, Volume and Issue: 14(9), P. 1112 - 1112

Published: Sept. 2, 2024

Bi2MoO6 (BMO) is a typical bismuth-based semiconductor material, and its unique Aurivillius structure provides broad space for electron delocalization. In this study, new type of bismuth molybdate Cd/Er-BMO photocatalytic material was prepared by co-doping Er3+ Cd2+, the performance degradation sulfamethoxazole (SMZ) systematically studied. The research results showed that efficiency SMZ significantly improved after doping Cd2+ ions, reflecting synergistic catalytic effect co-doping. doped with 6% Cd had highest (93.89%) under visible light irradiation. revealed excellent stability reusability in repeated experiments. addition, smaller particle size larger specific surface area, which conducive to improving generation photogenerated electron-hole pairs reducing recombination rate, enhancing photocatalysis material. This study not only an effective photocatalyst degrading environmental pollutants such as SMZ, but also important scientific basis ideas future development efficient stable materials.

Language: Английский

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Mesoporous Titania Nanoparticles for a High-End Valorization of Vitis vinifera Grape Marc Extracts

Inorganics, Journal Year: 2024, Volume and Issue: 12(10), P. 263 - 263

Published: Oct. 3, 2024

Mesoporous titania nanoparticles (NPs) can be used for encapsulation polyphenols, with applications in the food industry, cosmetics, or biomedicine. TiO2 NPs were synthesized using sol-gel method combined solvothermal treatment. characterized through X-ray diffraction, FTIR spectroscopy, N2 adsorption method, scanning and transmission electron microscopy, thermal analysis. The sample prepared Pluronic F127 presented a higher surface area less agglomerated than samples P123. Grape marc (GM), by-product from wine production, exploited preparing extracts good antioxidant properties. In this regard, we hydroethanolic ethanolic GM two cultivars, Feteasca Neagra (FN) Pinot Noir. extract components determined by spectrometric analyses HPLC. highest radical scavenging activity, FN extract, was encapsulated (FN@TiO2) compared SBA-15 silica support. Both resulting materials showed biocompatibility on NCTC fibroblast cell line 50–300 µg/mL concentration range after 48 h of incubation even better potential free extract. Although has lower capacity to host polyphenols SBA-15, FN@TiO2 shows cytocompatibility (up 700 µmg/mL), therefore, it could skin-care products.

Language: Английский

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Studying the Photoactivity of Ag-Decorated TiO2 Nanotubes with Combined AFM and Raman Spectroscopy

Surfaces, Journal Year: 2024, Volume and Issue: 7(4), P. 938 - 950

Published: Nov. 2, 2024

The drive for the development of systems that can simultaneously investigate chemical and morphological information comes from requisite to fully understand structure reactivity relationships materials. This is particularly relevant in photocatalysis, a field ruled by surface interactions. An in-depth understanding these complex interactions could lead significant improvements materials design, consequently, photocatalytic performances. Here, we present first approach combined atomic force microscopy (AFM) Raman spectroscopy characterization anodic TiO2 nanotubes arrays decorated with Ag nanoparticle electrodeposition either same anodizing organic electrolyte or an aqueous one. Photocatalytic substrates were used up 15 consecutive photocatalysis tests prove their possible deterioration reuse. Sample aging can, principle, produce changes both morphology compounds characterize photocatalyst surface. Adopting multiple techniques, such as combination AFM original setup, profitably enable observation contamination. A drop activity was observed after 10 cycles on samples where silver deposited electrolyte, while others remained stable. Such ascribed deactivation. While other cases, simple recovery treatment allowed initial photoactivity be restored, this deactivation not restored even thermal cleaning treatments.

Language: Английский

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