High photocatalytic activity N-doped Bi2WO6 nanoparticles using a two-step microwave-assisted and hydrothermal synthesis

Hoàng, Lục Huy; Phú, Nguyễn Đăng; Heng, Peng; Chen, Xiang‐Bai

doi:10.1016/j.jallcom.2018.02.094

Cited by 68 publications

(19 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oil bath X-ray irradiation; /; / Tumor volume: ~30% of its original size [88] Similar to metal doping, nonmetal doping also shows a positive effect on improving the photocatalytic efficiency. Photocatalytic activity of N doped Bi2WO6 was explored by Hoang et al [119] via a two-step microwave-assisted and hydrothermal process. The doping of N atoms with appropriate concentration (atomic ratio of N:Bi = 0.5%) achieved the lowest charge recombination rate and most improved photocatalytic degradation efficiency of RhB.…”

Section: Dopingmentioning

confidence: 99%

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Chen

Liu

et al. 2021

Chinese Journal of Catalysis

244

View full text Add to dashboard Cite

Bismuth tungstate (Bi2WO6) has become a research hotspot due to its potential in photocatalytic energy conversion and environmental purification. Nevertheless, the limited light absorption and fast recombination of photogenerated carriers hinder the further improvement of the photocatalytic performance of Bi2WO6. Herein, we provide a systematic review for the recent advances on Bi2WO6-based photocatalysts. It starts with the crystal structure, optical properties and photocatalytic fundamentals of Bi2WO6. Then, we focus on the modification strategies of Bi2WO6 based on morphology control, atomic modulation and composite fabrication for diverse photocatalytic applications, such as organic synthesis, water splitting, CO2 reduction, water treatment, air purification, bacterial inactivation, etc. Finally, some current challenges and future development prospects are proposed. We expect that this review can provide a useful reference and guidance for the development of efficient Bi2WO6 photocatalysts.

show abstract

Section: Dopingmentioning

confidence: 99%

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Chen

Liu

et al. 2021

Chinese Journal of Catalysis

244

View full text Add to dashboard Cite

show abstract

“…The doping element like Mg, Ni, Ag, Fe, F, N, etc. [22][23][24][25][26][27] can modify the electronic structure and surface properties of Bi2WO6, thus extending its light absorbance. Then, the activity of photocatalyst will be improved.…”

Section: Introductionmentioning

confidence: 99%

Excellent photocatalytic rhodamine B degradation for water remediation over Pr3+ doped Bi2WO6 microspheres

Zhang

2022

J IRAN CHEM SOC

View full text Add to dashboard Cite

In this work, a serious of Pr 3+ doped Bi2WO6 had been prepared by one-step hydrothermal method without using any additive. XRD results showed that the Pr 3+ doped Bi2WO6 possessed pure orthorhombic phase. XRD patterns shifted to higher angles with the doping amount of Pr 3+ increasing indicated that Pr 3+ was doped into the lattice of Bi2WO6. UV-vis DRS results revealed that the band gap was narrowed by Pr 3+ doping. SEM and TEM images showed that the Pr 3+ doped Bi2WO6 presented 3D flower-like microspheres constructed by many nanosheets. The photocatalytic activities of the as-prepared samples were evaluated by using rhodamine B (RhB) as the target organic pollutant. It was found that 1% Pr-Bi2WO6 exhibited excellent photocatalytic performance, as well as good stability and reusability. The improved photocatalytic activity can be ascribed to the optimum optical absorption activity, the larger specific surface area and the morphology of microspheres which resulted in the effective separation of the photogenerated electron hole pairs. In addition, the photocatalytic mechanism had been discussed according to the radical-trapping experiments.

show abstract

“…There are different methods for preparing Bi 2 WO 6 nanoparticles that cause differences in their structure; common methods include microwave-assisted, 27 co-precipitation, 28 sol−gel, 29 and hydro-solvothermal methods. 30 Nanoparticles, slit-like, octagonal, microspheres, flower-like structures, nanocoating's, nanoplates, and hollow structures are of various Bi 2 WO 6 forms. 31,32 Bi 2 WO 6 has important applications, including catalysts, optical fibers, chemical sensors, and magnetic devices.…”

Section: Introductionmentioning

confidence: 99%

Comparison between Bi₂WO₆ and TiO₂ Photoanodes in Dye-Sensitized Solar Cells: Experimental and Computational Studies

Zolghadr

Estakhr

Dokoohaki

et al. 2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Dye-sensitized solar cells (DSSCs) demonstrate a clean and cheap technology to harness solar energy efficiently and have been studied in a large scale for safe and reliable energy supply. This research focuses on the experimental and computational study of DSSCs based on a different and novel metal oxide, bismuth tungstate (Bi2WO6), semiconductor as an electron conductor. This work is divided into four main topics: (1) the search for an appropriate Bi2WO6 nanostructure for better dye absorption, (2) comparison between Bi2WO6 and TiO2 as photoanodes, (3) the impact of the semiconductor morphology on the performance of DSSCs, and (4) the study of the structural and dynamical properties of the dye solution and also the electrolyte mixture near electrodes in DSSCs. This study pointed out the poor properties of ruthenium-complex dye as sensitizers for Bi2WO6 and the great effect of Bi2WO6 surface charge on dye adsorption. The best performance of Bi2WO6 DSSC was obtained for morphologies synthesized at pH = 1, which can be attributed to the less negative surface charges of Bi2WO6 nanoparticles. Another important part of this paper was devoted to study the electrolyte distribution between anode and cathode surfaces for both TiO2 and Bi2WO6 DSSCs. To our knowledge, acetonitrile-based electrolyte interactions with the Bi2WO6 photoanode have not been explored to date.

show abstract

High photocatalytic activity N-doped Bi2WO6 nanoparticles using a two-step microwave-assisted and hydrothermal synthesis

Cited by 68 publications

References 24 publications

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Excellent photocatalytic rhodamine B degradation for water remediation over Pr3+ doped Bi2WO6 microspheres

Comparison between Bi₂WO₆ and TiO₂ Photoanodes in Dye-Sensitized Solar Cells: Experimental and Computational Studies

Contact Info

Product

Resources

About

High photocatalytic activity N-doped Bi2WO6 nanoparticles using a two-step microwave-assisted and hydrothermal synthesis

Cited by 68 publications

References 24 publications

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Excellent photocatalytic rhodamine B degradation for water remediation over Pr3+ doped Bi2WO6 microspheres

Comparison between Bi2WO6 and TiO2 Photoanodes in Dye-Sensitized Solar Cells: Experimental and Computational Studies

Contact Info

Product

Resources

About

Comparison between Bi₂WO₆ and TiO₂ Photoanodes in Dye-Sensitized Solar Cells: Experimental and Computational Studies