Photocatalytic degradation of ethylene by Ga<sub>2</sub>O<sub>3</sub> polymorphs

Liu, Hongshuai; Wang, Zeyan; Li, Hui‐Liang; Zhang, Xiaoyang; Qin, Xiaoyan; Dai, Ying; Wang, Peng; Liu, Yuanyuan; Huang, Baibiao

doi:10.1039/c8ra02212g

Cited by 20 publications

(7 citation statements)

References 25 publications

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“…The band gap and valence band position of the nanowires were further determined to be 4.21 and 3.49 eV, respectively, on the basis of both UV–vis absorption and XPS valence spectra (Figure S36). , For sustainability investigation, the catalyst was also examined for its anti-photocorrosion properties. There was no noticeable decrease in the degradation efficiency during four successive cycles (Figure d), demonstrating excellent photostability and reusability of the material.…”

Section: Resultsmentioning

confidence: 99%

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Xiong

Zhang

et al. 2023

ACS Appl. Nano Mater.

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Herein, we report a facile and effective strategy for patterned growth of one-dimensional (1D) β-Ga2O3 nanowires on metallic substrates, based on the alloying of liquid gallium as a precursor. To demonstrate this method, the specific patterns are painted using gallium on a metallic foil through screen printing, which produces an intermetallic phase by alloying. The subsequent thermal treatment involving the sputtering Au serves as a catalyst to induce the formation of β-Ga2O3 nanowires on the foil. Notably, the gallium in the intermetallic phase maintains the in situ growth of nanowires. Such a growth process depends on the Au sputtering and temperature, which well follows a classical vapor–liquid–solid mechanism. Interestingly, benefiting from the unique physiochemical attributes of liquid gallium, the convenient alloying facilitates the synthesis of the nanowires at a moderately low temperature. This synthetic approach is also universal for a series of metallic substrates including Ag, Cu, Ni, and Co foils, and the production can be scaled up easily. Furthermore, as a model catalyst, the β-Ga2O3 nanowires grown on Ag foil (β-Ga2O3/Ag) display good photocatalytic performance and easy recovery in the degradation of dyes. The work provides an avenue to prepare patterned β-Ga2O3 nanowires based on liquid gallium.

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Section: Resultsmentioning

confidence: 99%

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Xiong

Zhang

et al. 2023

ACS Appl. Nano Mater.

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“…Moreover the observed peaks did not match with the XRD peaks of polymorphs of Ga 2 O 3 (α-, γ-, δ-, ε-) other than β-phase. 26,27 The peak (400) with highest intensity was used to determine the average crystallites size (D) of the samples. To determine D, Debye-Scherrer formula (given below) was used:…”

Section: Resultsmentioning

confidence: 99%

Effects of Energetic Ion Irradiation on β-Ga₂O₃ Thin Films

Yadav

Dash

Patra

et al. 2020

ECS J. Solid State Sci. Technol.

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In the present work, effect of swift heavy ion (SHI) irradiation on structural and optical properties of β-Ga2O3 thin films was investigated. Different ion fluences (ϕ) of 120 MeV Ag9+ ions ranging from 1 × 1011 ions-cm−2 to 5 × 1012 ions-cm−2 were employed. The films were grown at room temperature (RT) using electron beam evaporation method and post-deposition annealing was done at 900 °C in oxygen atmosphere. X-ray diffraction (XRD) and UV–visible (UV-Vis) spectroscopy data confirmed the formation of polycrystalline β-Ga2O3 phase having a bandgap of ∼5.14 eV. An increase in the structural disorder, and decrease in the average crystallites size of β-Ga2O3 with increasing ϕ was also revealed by XRD. Ga2O3 thin films showed high transparency in the UV (upto 280 nm) and visible range with average transmittance of ∼80%. Rutherford backscattering spectrometry (RBS) revealed that the thin films were slightly O deficient. A low frequency vibration mode at 170 cm−1 arising from liberation and translation of tetrahedra-octahedra chains in β-Ga2O3 was observed through Raman spectroscopy. Scanning electron micrograph (SEM) images suggested that the films were fairly smooth.

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“…Apart from TiO 2 , some semiconductors (such as Bi 2 WO 6 , gallium trioxide) are also used to degrade ethylene. 50 Unlike TiO 2 , Bi 2 WO 6 can use visible light with a wavelength of 420-460 nm for photocatalytic degradation. 51,52 Xie et al 52 used the casting method to prepare graphene oxide/Bi 2 WO 6 /starch film and found that the film has good photocatalytic degradation performance under visible light and good recyclability.…”

Section: Packaging Using Photocatalytic Technologymentioning

confidence: 99%

“…Apart from TiO 2 , some semiconductors (such as Bi 2 WO 6 , gallium trioxide) are also used to degrade ethylene 50 . Unlike TiO 2 , Bi 2 WO 6 can use visible light with a wavelength of 420–460 nm for photocatalytic degradation 51,52 .…”

Section: Different Types Of Erpmentioning

confidence: 99%

Application of ethylene‐regulating packaging in post‐harvest fruits and vegetables storage: A review

et al. 2022

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Ethylene is a key hormone to promote the ripening of fruits and vegetables (F&V). It is detrimental to the transportation, storage, and sale of F&V. In order to control the maturation of F&V and reduce their losses, many ethylene-regulating packaging (ERP) have been developed. In this review, we first introduced the synthesis pathway of ethylene. Next, we divided ERP into four categories: ethylene-degrading packaging, ethylene-adsorbing packaging, modified atmosphere packaging, and bioactive packaging according to the way of regulating ethylene, clarifying the regulation mechanism and characteristics of various types of packaging. Finally, we predicted the future development direction of ERP.

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Photocatalytic degradation of ethylene by Ga₂O₃ polymorphs

Abstract: In this work, we fabricated four different Ga2O3 polymorphs, namely, α-, β-, γ-, δ-Ga2O3, and investigated their photocatalytic activities by the degradation of ethylene under ultraviolet (UV) light irradiation.

Cited by 20 publications

References 25 publications

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Effects of Energetic Ion Irradiation on β-Ga₂O₃ Thin Films

Application of ethylene‐regulating packaging in post‐harvest fruits and vegetables storage: A review

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Photocatalytic degradation of ethylene by Ga2O3 polymorphs

Abstract: In this work, we fabricated four different Ga2O3 polymorphs, namely, α-, β-, γ-, δ-Ga2O3, and investigated their photocatalytic activities by the degradation of ethylene under ultraviolet (UV) light irradiation.

Cited by 20 publications

References 25 publications

Liquid Gallium-Assisted Patterned Growth of β-Ga2O3 Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Liquid Gallium-Assisted Patterned Growth of β-Ga2O3 Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Effects of Energetic Ion Irradiation on β-Ga2O3 Thin Films

Application of ethylene‐regulating packaging in post‐harvest fruits and vegetables storage: A review

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Photocatalytic degradation of ethylene by Ga₂O₃ polymorphs

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Liquid Gallium-Assisted Patterned Growth of β-Ga₂O₃ Nanowires on Metallic Foils for Photocatalytic Dye Degradation

Effects of Energetic Ion Irradiation on β-Ga₂O₃ Thin Films