Efficient Visible-Light Photocatalysis Using Fe-Doped SnO2/Chitosan Composite for Organic Pollutant Degradation: Mechanisms, Reusability, and Sustainability

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Язык: Английский

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Graphitic carbon nitride (g-C3N4) loaded nanoscale zero-valent iron (nZVI) composites for enhanced hexavalent chromium removal: The role of g-C3N4, performance and mechanistic study

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114161 - 114161

Опубликована: Фев. 1, 2025

Язык: Английский

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Molecular precursor pathway to Co_1−xNi_xNb₂O₆ for photocatalytic dye degradation: Optical and charge transport studies

Journal of the American Ceramic Society, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Abstract A new approach for the formation of binary and ternary mixed metal oxides, namely, CoNb 2 O 6 , NiNb Co 0.5 Ni Nb through a modified single‐source molecular precursor route was investigated. By optimizing annealing temperature, heating/cooling rates holding times, phase compositions thermal processing mixtures oxalate‐based complexes [M(bpy) 3 ] [NbO(C 4 ) ]Cl· n H (M = 2+ ( 1 or/and ); 11, 12) (NH ]·3H were evaluated. Phase‐pure columbite oxides 1− x 0, 0.5, 1) obtained in one step by heating two or three oxalate at 1200°C 10 h with rate 10°C min −1 . The (micro)structure, morphology, optical properties as‐prepared materials characterized powder X‐ray diffraction (PXRD), field‐emission scanning electron microscopy (FE‐SEM) ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS). Impedance used to investigate electrical dielectric properties, providing valuable insights into charge transport dynamics. exhibits greatest conductivity series (2.64 × −11 Ω cm 120°C), orders magnitude greater than those oxide has minimum loss, but it shows maximum permittivity. Estimated band gap energies within visible light excitations prompt us their photocatalytic activities degradation methylene blue (MB) dye under irradiation without hydrogen peroxide (H ). It is evident that /H systems exhibit higher activity: efficiency MB found be between 26% 38%. In addition, cyclic stability photocatalyst investigated possible proposed mechanism substantiated scavenger analysis study.

Язык: Английский

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MoS2-gC3N4 encapsulated in nitrogen-doped graphene oxide: an efficient visible light photocatalyst for removal of Cr (VI) from aqueous solution and mineralization of organic contaminant

Materials Science and Engineering B, Год журнала: 2025, Номер 318, С. 118286 - 118286

Опубликована: Апрель 14, 2025

Язык: Английский

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