Experimental and ab initio studies of enhance photocatalytic efficiency of La-doped ZnO/g-C3N4 nanocomposites for bromothymol blue dye degradation

Next Materials, Год журнала: 2024, Номер 4, С. 100212 - 100212

Опубликована: Апрель 21, 2024

The ability of photocatalysis to clean up environmental contamination, notably in the treatment water and air, has received extensive research. composite materials synthesized by coprecipitation method were made ZnO graphitic carbon nitride (g-C3N4) with various concentrations lanthanum doping (La-ZnO). It was discovered that La metal ions evenly distributed throughout layered stacking structures nanosheet, which had an impact on band structure increased rate electron-hole separation visible light absorption. First-principles calculations show La-doped ZnO-gC3N4 possesses a direct gap type-II conduction minimum valence maximum located separate layers. A built-in electric field from gC3N4 been established through analysis charge density difference, Bader charge, work function, alignment. pair becomes spatially separated as result, increases photodegradation activity. High interfacial transfer, efficient migration, high optical absorbance caused coating ultra-thin g-C3N4 layer. 0.6 % degraded 97 bromothymol blue (BB) dye, four times higher than bulk ZnO, could remove only about 21 dye at same time. combined effects lower photo corrosion, solar usage owing hollow heterostructured semiconductor contribute this photocatalytic capacity ZnO/g-C3N4 nanocomposite effectively break down BB via suggests it potential address problems associated pollution systems.

Язык: Английский

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Visible–light–driven photocatalyst for solar–to–hydrogen efficiency via a Type–II SGaInS/GaGePS van der Waals heterostructure

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163433 - 163433

Опубликована: Май 1, 2025

Язык: Английский

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General synthesis of single‐crystalline Ta2O5 nanorods towards enhanced photocatalytic H2 production activity

ChemPhysChem, Год журнала: 2024, Номер unknown

Опубликована: Сен. 2, 2024

Abstract As a potential candidate for photocatalytic H 2 production from water splitting, Ta O 5 catalyst presents suitable conduction and valence band positions, but suffers poor charge transfer ability, which seriously limits its performance enhancement. Here, facile eco‐friendly hydrothermal method was developed the fabrication of one‐dimensional (1D) nanorods using freshly precipitated tantalic acids as precursors. An oriented attachment mechanism proposed growth nanorods. Moreover, present synthetic approach further extended to direct synthesis nine kinds alkaline tantalates alkaline‐earth nanostructures, suggesting general applicability. A significant increase in activity revealed on 1D The improved mainly attributed structure with high crystallization large specific surface areas well excellent efficiency.

Язык: Английский

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Investigation on properties of CuI/InSe heterojunction with Z–alignment for photocatalytic water splitting

Materials Today Communications, Год журнала: 2024, Номер unknown, С. 111142 - 111142

Опубликована: Ноя. 1, 2024

Язык: Английский

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