Enhanced hydrogen production activity over BiO X TiO 2 under solar irradiation: Improved charge transfer through bismuth oxide clusters

Chennaiahgari, Manvitha; Reddy, P. Venkata Laxma; Kim, Ki‐Hyun; Kumari, V. Durga

doi:10.1016/j.jechem.2016.12.007

Cited by 22 publications

(4 citation statements)

References 36 publications

(40 reference statements)

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“…The composite samples containing a combination of Bi 2 O 3 and TiO 2 displayed stronger absorption in the visible range and a more confined band energy range (2.5-2.8 eV) than the pure Bi 2 O 3 and TiO 2 samples. These results indicate that increasing the Bi 3+ content in the samples improved the light absorption in the visible range and enhanced the photocatalytic performance of the composites [20].…”

Section: Photocatalytic Activity Experimentsmentioning

confidence: 69%

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite

et al. 2023

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Bi2O3/TiO2 photocatalysts were successfully synthesized by the solvothermal method. Characterization using X‐ray powder diffraction, scanning electron microscopy, UV‐visible diffuse reflectance spectra, X‐ray photoelectron spectroscopy, and photoluminescence spectroscopy showed excellent photodegradation of tetracycline under UV‐visible light, compared to Bi2O3 or TiO2. This was due to reduced electron‐hole recombination in the Bi2O3/TiO2 composite, as confirmed by photoluminescence characterization. The fabrication of semiconductor composites holds great promise for enhancing the photocatalytic performance, and Bi2O3/TiO2 is a prime example with exciting prospects for practical applications in photocatalysis.

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Section: Photocatalytic Activity Experimentsmentioning

confidence: 69%

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite

et al. 2023

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“…Metal doping usually causes the formation of an acceptor level below the conduction band . For instance, it was shown that Bi-deposited TiO 2 exhibited higher photocatalytic activity for glycerol transformation than bare TiO 2 due to (i) extending the visible-light absorption because of bandgap shrinkage and (ii) extending the lifetime of photogenerated charges with 4f level of bismuth . The investigation of the effect of Fe as a metallic doping agent on g-C 3 N 4 /TiO 2 revealed that the coexistence of g-C 3 N 4 with TiO 2 can reduce the optimum amount of Fe to convert glycerol from 2% to 1% .…”

Section: Photocatalyst Development For Glycerol Valorizationmentioning

confidence: 99%

“…181 For instance, it was shown that Bi-deposited TiO 2 exhibited higher photocatalytic activity for glycerol transformation than bare TiO 2 due to (i) extending the visible-light absorption because of bandgap shrinkage and (ii) extending the lifetime of photogenerated charges with 4f level of bismuth. 98 The investigation of the effect of Fe as a metallic doping agent on g-C 3 N 4 /TiO 2 revealed that the coexistence of g-C 3 N 4 with TiO 2 can reduce the optimum amount of Fe to convert glycerol from 2% to 1%. 121 Moreover, although the bandgap could be reduced from 3.2 up to 2.35 eV by doping 5% Fe, the highest amount of hydrogen can be produced with 2% Fe (whose bandgap is 2.84 eV).…”

Section: Photocatalyst Development For Glycerolmentioning

confidence: 99%

Current Developments and Future Trends in Photocatalytic Glycerol Valorization: Photocatalyst Development

Estahbanati

Feilizadeh

Attar

et al. 2020

Ind. Eng. Chem. Res.

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Glycerol is a significant byproduct of biomass conversion into biodiesel, and numerous studies have been focused on its valorization technologies in recent years. Photocatalytic glycerol valorization is a promising technology to convert solar energy into chemical energy by producing hydrogen and value-added liquid products. This technology is desirable from the point of view of both green chemistry and sustainable development since it can operate at ambient temperature and atmospheric pressure by using renewable solar energy. The key element for a successful photocatalytic glycerol valorization process is the development of highly active and stable photocatalysts. In this context, the present review deals with novel techniques to improve photocatalysts’ activity. It reviews the main characteristics, preparation methods, advantages, and drawbacks as well as the performance of different TiO2-based and non-TiO2-based photocatalysts for glycerol conversion. Also, an analysis is presented on the most effective approaches for increasing the photocatalytic activity, including cocatalyst deposition, doping with metallic and nonmetallic ions, development of carbonaceous composites, and formation of heterojunctions. The review also offers the readers ongoing challenges and opportunities for research on photocatalyst development to selectively convert glycerol into hydrogen and value-added liquid products.

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“…As a benchmark material for photocatalysis, TiO 2 has also been used to hybrid with BiOX [215][216][217][218][219]. The typical 2D semiconductor, MoS 2 , which is on the recent hot topic has also been used to compound with BiOX [220].…”

Section: Composite/heterostructurementioning

confidence: 99%

Emerging members of two-dimensional materials: bismuth-based ternary compounds

et al. 2020

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Bismuth-based binary compounds, including Bi2Se3 and Bi2Te3, have attracted increasing attention as well-known topological insulators. On the other hand, bismuth-based ternary compounds exhibit diverse properties, such as, ultrahigh carrier mobility, and strong Rashba spin splitting. Moreover, they boast of superior photocatalytic properties, implying great potential to be used in a wide range of applications. The unique structure and properties of two-dimensional (2D) materials, especially the extraordinary electronic and optical properties of 2D Bi2O2Se, have given rise to significant research interests for the exploration of 2D bismuth-based ternary compounds. In this review, we will comprehensively discuss the properties of three important families of bismuth-based ternary compounds, including Bi2O2X (X = S, Se, Te), BiTeX (X = Cl, Br, I), and BiOX (X = Cl, Br, I). In particular, we have placed emphasis on the latest progress in their 2D forms, including their novel properties and applications. This review would aid in understanding the superior performance of bismuth-based ternary compounds and offer a perspective for future research on these emerging 2D materials.

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Enhanced hydrogen production activity over BiO X TiO 2 under solar irradiation: Improved charge transfer through bismuth oxide clusters

Cited by 22 publications

References 36 publications

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite

Current Developments and Future Trends in Photocatalytic Glycerol Valorization: Photocatalyst Development

Emerging members of two-dimensional materials: bismuth-based ternary compounds

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Enhanced hydrogen production activity over BiO X TiO 2 under solar irradiation: Improved charge transfer through bismuth oxide clusters

Cited by 22 publications

References 36 publications

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi2O3/TiO2 Composite

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi2O3/TiO2 Composite

Current Developments and Future Trends in Photocatalytic Glycerol Valorization: Photocatalyst Development

Emerging members of two-dimensional materials: bismuth-based ternary compounds

Contact Info

Product

Resources

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Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite

Enhanced Photodegradation of Tetracycline under UV‐Visible Light with a Bi₂O₃/TiO₂ Composite