Photocatalytic performance of hybrid WO<sub>3</sub>/TiO<sub>2</sub> nanomaterials for the degradation of methylene blue under visible light irradiation

Tahir, Muhammad Bilal; Farman, Sohail; Rafique, Muhammad; Shakil, M.; Khan, Muhammad Isa; Ijaz, Mohsin; Mubeen, Iqra; Ashraf, Maria; Riaz, Khalid

doi:10.1080/03067319.2019.1685093

Cited by 26 publications

(10 citation statements)

References 37 publications

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“…The presence of bands between 650 and 800 cm −1 are attributed to the different vibrational modes of TiO 2 . 29 The FT-IR results supported the formation of hybrid nanocomposites. 2.6.…”

Section: Resultsmentioning

confidence: 71%

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

et al. 2020

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In this work, WO 3 -TiO 2 , chitosan-blended WO 3 -TiO 2 , and garlic-loaded WO 3 -TiO 2 nanocomposites were synthesized by the sol−gel and precipitation technique. The synthesized nanocomposites were characterized by XRD, FE-SEM, HR-TEM, EDX, UV-DRS, FT-IR, and TG-DTA analysis. The photocatalytic efficiency of the three synthesized nanocomposites on the degradation of dyes such as rhodamine B (Rh-B), methylene blue (MB), and methyl orange (MO) as organic pollutants was evaluated under solar light irradiation. The results show that garlic-loaded WO 3 -TiO 2 nanocomposites act as an excellent photocatalyst than chitosan-blended WO 3 -TiO 2 and WO 3 -TiO 2 nanocomposites. Further, the antimicrobial activity of the synthesized nanocomposites was examined against Gram-negative bacteria (Escherichia coli) by the well diffusion method. Garlic-loaded WO 3 -doped TiO 2 nanocomposites have demonstrated good antibacterial activity over chitosan-blended WO 3 -TiO 2 nanocomposites and WO 3 -TiO 2 nanocomposites. The possible reason may be the presence of organic sulfur compounds in garlic.

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“…The presence of bands between 650 and 800 cm −1 are attributed to the different vibrational modes of TiO 2 . 29 The FT-IR results supported the formation of hybrid nanocomposites. 2.6.…”

Section: Resultsmentioning

confidence: 71%

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

et al. 2020

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“…It is also worth mentioning that the increased Al layers thickness increased the content of Al in WO 3. Substituted Al ions perform as a doping agents resulting in a decrease in the energy band gap [29]. Literature data reported information about the role of oxygen content in WO 3 on the energy band gap.…”

Section: Resultsmentioning

confidence: 99%

Enhanced structural, optical and electrical properties of polycrystalline WO₃ thin films achieved by aluminum nanosheets coating

Qasrawi,

Khanfar

2024

Phys. Scr.

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Herein the effects of aluminum nanosheets on the structural, morphological, optical and electrical properties of tungsten oxide thin films are reported. Polycrystalline phase of the thermally evaporated WO3 was achieved by the pulsed laser welding technique. The polycrystalline films are then coated with Al nanosheets of thicknesses of 100 nm and 150 nm by the ion coating technique. It is observed that Al induces the domination of the hexagonal structure of WO3 over the tetragonal. Associated with the enhanced crystallinity the light absorption in the films increased by more than 60 % and the energy band gap narrowed significantly. Namely the energy band gap of the as grown WO3 decreased from 3.15 eV to 2.85 eV and 2.59 eV as the Al layer thickness increased from 100 to 150 nm, respectively. It is also observed that crystalline films of WO3 exhibited lower electrical resistivity compared to films fabricated by other techniques. The temperature dependent electrical resistivity measurement was carried out in the temperature range of 310-420 K. It showed room temperature values of 2.5 (Ωcm), 2.2 (Ωcm) and 1.9 (Ωcm) and impurity levels centered at 0.25 eV, 0.34 eV and 0.16 eV for uncoated and films coated with Al nanosheets of thicknesses of 100 nm and 150 nm, respectively. The enhanced crystallinity that is accompanied with narrower energy band gap and lower electrical resistivity values make crystalline WO3 films promising for optoelectronic applications.

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“…For energy storage applications, several heterostructures were studied with enhanced properties, as elaborated in the following paragraph. These heterostructures possess unique mechanical strength, fast ionic and electrical conductivity, structural stability, and remarkable electrochemical activities. ,− …”

Section: Promise Of 2d Materials To Address the Limitations Of The Co...mentioning

confidence: 99%

Borophene Potential for Developing Next-Generation Battery Applications: A Comprehensive Review

Ashraf,

Abghoui

2023

Energy Fuels

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Photocatalytic performance of hybrid WO₃/TiO₂ nanomaterials for the degradation of methylene blue under visible light irradiation

Cited by 26 publications

References 37 publications

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Enhanced structural, optical and electrical properties of polycrystalline WO₃ thin films achieved by aluminum nanosheets coating

Borophene Potential for Developing Next-Generation Battery Applications: A Comprehensive Review

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Photocatalytic performance of hybrid WO3/TiO2 nanomaterials for the degradation of methylene blue under visible light irradiation

Cited by 26 publications

References 37 publications

Biomaterial (Garlic and Chitosan)-Doped WO3-TiO2 Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Biomaterial (Garlic and Chitosan)-Doped WO3-TiO2 Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Enhanced structural, optical and electrical properties of polycrystalline WO3 thin films achieved by aluminum nanosheets coating

Borophene Potential for Developing Next-Generation Battery Applications: A Comprehensive Review

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Product

Resources

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Photocatalytic performance of hybrid WO₃/TiO₂ nanomaterials for the degradation of methylene blue under visible light irradiation

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Biomaterial (Garlic and Chitosan)-Doped WO₃-TiO₂ Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities

Enhanced structural, optical and electrical properties of polycrystalline WO₃ thin films achieved by aluminum nanosheets coating