نتایج جستجو برای: moo3g c3n4

تعداد نتایج: 1225  

Journal: :Coatings 2021

Both non-metallic g-C3N4 and BiVO4 are novel photocatalysts responsive to visible light, but their low charge separation efficiency restricts inconspicuous photocatalytic activity. In this paper, direct Z-type g-C3N4/BiVO4 photocatalyst was constructed by calcination hydrothermal for the degradation of methylene blue. The existence heterojunction confirmed detailed study its chemical structure ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Bo Meng Wen-zhi Xiao Ling-ling Wang Li Yue Song Zhang Hong-yun Zhang

We have investigated the structures, electronic structures and magnetic properties of the triazine-based g-C3N4 (gt-C3N4) monolayer doped with B, Al, and Cu atoms based on density functional theory using ab initio calculations. The B atom prefers to be situated at the center of the triazine ring, whereas the Al and Cu atoms tend to be located above the center of the triazine ring. The doping at...

2012
Markus Antonietti

Some recent observations made polymeric graphitic Carbon Nitride (ideally C3N4)n a nice extension to current semiconducting organic system. This is due to the ease of synthesis, but also due to its extreme chemical stability. Made from urea under early-Earth conditions, as reported already by Justus Liebig in 1832, it just recently turned out to be a novel catalyst whichamong other reactionscan...

Journal: :Chinese Journal of Catalysis 2021

The design and construction of heterojunction photocatalysts, which possess a staggered energy band structure appropriate interfacial contact, is an effective way to achieve outstanding photocatalytic performance. In this study, 2D/2D BiOBr/g-C3N4 heterojunctions were successfully obtained by convenient in situ self-assembly route. Under simulated sunlight irradiation, 99% RhB (10 mg·L−1, 100 m...

Journal: :Journal of the American Ceramic Society 2021

A BiVO4/2D g-C3N4 direct dual semiconductor photocatalytic system has been fabricated via electrostatic self-assembly method of BiVO4 microparticle and nanosheet. According to experimental measurements first-principle calculations, the formation built-in electric field opposite band bending around interface region in as well intimate contact between 2D will lead high separation efficiency charg...

Journal: :Carbon trends 2021

Carbon is a versatile element, and its allotropes play center role in both science technology. Further, doping of nitrogen into carbon network has been great interest as it leads to superior properties such chemical, mechanical electronic properties. Though the preparation ultrahard β-carbon nitride remains challenging one, owes attention due This work reports characterization crystalline on si...

Journal: :Inorganics (Basel) 2023

Removing organic dyes from contaminated wastewater resulting industrial effluents with a cost-effective approach addresses major global challenge. The adsorption technique onto carbon-based materials and metal oxide is one of the most effective dye removal procedures. current work aimed to evaluate application calcium oxide-doped carbon nitride nanostructures (CaO-g-C3N4) eliminate basic fuchsi...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2022

In this study, ZnO/g-C3N4 nanocomposites were prepared via a physical mixing-calcination process for improved degradation of dyes under visible light irradiation. The BET surface area, pore volume, crystal size, and pHpzc the composite 3.9 m2/g, 0.034 cm3/g, 18.1 nm, 7.7, respectively. Although morphology was very different from that pure g-C3N4, their average sizes similar. Eg (3.195 eV) sligh...

Journal: :Chinese Journal of Catalysis 2021

Expanding the optical absorption range of photocatalysts is still a key endeavor in graphitic carbon nitride (g-C3N4) studies. Here, we report on novel thiophene group extending property, which assigned to n-π* electronic transitions involving two lone pairs sulfur (TLPS). The as-prepared samples, denoted as CN-ThAx (where x indicates amount ThA added, mg), showed an additional above 500 nm com...

Journal: :Chinese Journal of Catalysis 2022

Durable and inexpensive graphitic carbon nitride (g-C3N4) demonstrates great potential for achieving efficient photocatalytic hydrogen evolution reduction (HER). To further improve its activity, g-C3N4 was subjected to atomic-level structural engineering by doping with transition metals (M = Fe, Co, or Ni), which simultaneously induced the formation of metal–N active sites in framework modulate...

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