Enhanced photocatalytic activity of Bi2WO6 loaded with Ag nanoparticles under visible light irradiation

Ren, Jia; Wang, Wenzhong; Sun, Songmei; Zhang, Ling; Chang, Jiang

doi:10.1016/j.apcatb.2009.07.022

Cited by 230 publications

(132 citation statements)

References 38 publications

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“…[8,9] The surface modification methods have shown encouraging results. Recently, Bi 2 WO 6 /metal composites have been designed to improve the photocatalytic ability, based on the synergy between the semiconductor and the metal component.…”

Section: ·-mentioning

confidence: 85%

“…This optimal surface metal loading for good photocatalytic efficiency is in good agreement with the results published for M/TiO 2 or M/Bi 2 WO 6 prepared by various deposition methods. [9,14] In the Pt 1 %-WR sample, the metal nanoparticle loading is sufficient to allow good photogenerated charge separation in the heterostructure. On the other hand, the screening effect of the platinum particles is small enough to allow good light absorption by the semiconductor platelets.…”

Section: Photocatalyst Characterizationmentioning

confidence: 99%

“…Following this strategy, Bi 2 WO 6 modified with Cu 0 or Ag 0 exhibits efficient electron and hole separation, inhibition of charge carrier recombination and therefore improved photocatalytic activity. [9,10] Consequently, the loading of copper or silver onto Bi 2 WO 6 has been widely studied, but there is little in the literature on platinum deposition. [11] In this work we focused on Pt/Bi 2 WO 6 heterostructures for photocatalytic applications and compared three major deposi-tion techniques: photoreduction, impregnation and wet reduction.…”

Section: ·-mentioning

confidence: 99%

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Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

et al. 2016

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Abstract:The preparation of photocatalytic heterostructures of platinum on Bi 2 WO 6 nanoparticles by a wet reduction method is described in this report and compared with other preparation methods. The as-obtained photocatalysts were characterized by XPS and TEM, the results of which confirmed the presence of solely zero-valent metal nanoparticles on the surface of Bi 2 WO 6 . The photocatalytic activity of these heterostructures was evaluated by the degradation of Rhodamine B under blue light (λ max = 445 nm). The deposited noble metal nanoparticles were

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Section: ·-mentioning

confidence: 85%

Section: Photocatalyst Characterizationmentioning

confidence: 99%

Section: ·-mentioning

confidence: 99%

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Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

et al. 2016

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“…Surface plasmon resonances of noble metal particles, which can be induced by light irradiation, may also contribute to the enhanced photocatalytic activity. Bi 2 WO 6 , which has a layered structure with perovskite-like slabs of WO 6 Herein, we present the synthesis of Ag@Bi 2 WO 6 microstructured photocatalyst through a simple UV light irradiation. The effect of Ag on the photocatalytic activity of Bi 2 WO 6 has been investigated in detail.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, many studies have been carried out to accelerate the charge carrier separation, including the coupling of two kinds of matching compounds, [2][3][4][5] and the deposition of noble metals such as silver, 6,7 gold, 8,9 platinum, 10 and palladium. 11 Recently, semiconductor-metal composites were designed to improve the catalytic ability inspired by the synergetic action between semiconductor and metal component.…”

Section: Introductionmentioning

confidence: 99%

Ag@Bi₂WO₆Composites with High Visible‐Light‐Driven Photocatalytic Activities Prepared in UV Light Irradiation

2011

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Bi 2 WO 6 microstructures were synthesized through hydrothermal process and Ag@Bi 2 WO 6 composites were synthesized by simple UV light irradiation for 5 min using Bi 2 WO 6 and AgNO 3 as raw materials. Ag@Bi 2 WO 6 composites were characterized by X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and UV-Vis absorption spectrum (UV-Vis). Few Ag deposited on the Bi 2 WO 6 leads to an increase in photocatalytic activity, which clearly indicates that the recombination of photogenerated charge carrier between the hybrid orbital of Bi6s and O2p (valence band) to the empty W5d orbital is inhibited greatly in the Ag@Bi 2 WO 6 composite. In addition, a few H 2 O 2 will greatly enhance photocatalytic activity of Ag@Bi 2 WO 6 , and the proper reason is discussed.

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Enhanced visible‐light‐driven photocatalytic activity of F doped reduced graphene oxide ‐ Bi₂WO₆ photocatalyst

Chu

2018

Applied Organom Chemis

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The reduced graphene oxide-Bi 2 WO 6 (rGO-BWO) photocatalysts with the different R F/O values (molar ratio of the F molar mass and the O's molar mass of Bi 2 WO 6 ) had been successfully synthesized via one-step hydrothermal method. The F-doped rGO-BWO samples were characterized by X-ray diffraction patterns (XRD), field-emission scanning electron microscopy (FE-ESEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller surface area (BET), X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectra (DRS). The results indicate that F − ions had been successfully doped into rGO-BWO samples. With the increasing of the R F/O values from 0 to 2%, the evident change of the morphology and the absorption edges of Fdoped rGO-BWO samples and the photocatalytic activities had been enhanced. Moreover, the photocatalytic activity of F-doped rGO-BWO with R F/O = 0.05 were better than rGO-BWO and the other F-doped rGO-BWO under 500 W Xe lamp light irradiation. The enhanced photocatalytic activity can be attributed to the morphology of the intact microsphere that signify the bigger specific surface area for providing more possible reaction sites for the adsorption-desorption equilibrium of photocatalytic reaction, the introduction of F − ions that may cause the enhancement of surface acidity and creation of oxygen vacancies under visible light irradiation, the narrower band gap which means needing less energy for the electron hole pair transition.

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Enhanced photocatalytic activity of Bi2WO6 loaded with Ag nanoparticles under visible light irradiation

Cited by 230 publications

References 38 publications

Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Ag@Bi₂WO₆Composites with High Visible‐Light‐Driven Photocatalytic Activities Prepared in UV Light Irradiation

Enhanced visible‐light‐driven photocatalytic activity of F doped reduced graphene oxide ‐ Bi₂WO₆ photocatalyst

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Enhanced photocatalytic activity of Bi2WO6 loaded with Ag nanoparticles under visible light irradiation

Cited by 230 publications

References 38 publications

Optimized Design of Pt‐Doped Bi2WO6 Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Optimized Design of Pt‐Doped Bi2WO6 Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Ag@Bi2WO6Composites with High Visible‐Light‐Driven Photocatalytic Activities Prepared in UV Light Irradiation

Enhanced visible‐light‐driven photocatalytic activity of F doped reduced graphene oxide ‐ Bi2WO6 photocatalyst

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Product

Resources

About

Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Optimized Design of Pt‐Doped Bi₂WO₆ Nanoparticle Synthesis for Enhanced Photocatalytic Properties

Ag@Bi₂WO₆Composites with High Visible‐Light‐Driven Photocatalytic Activities Prepared in UV Light Irradiation

Enhanced visible‐light‐driven photocatalytic activity of F doped reduced graphene oxide ‐ Bi₂WO₆ photocatalyst