Highly efficient and photo-triggered elimination of Aspergillus fumigatus spores by Zn-Ti layered double hydroxide

Sheng, Zekai; Hou, Fengming; Zou, Leilei; Li, Jiaxin; Jin, Li; Ai, Libang; Wei, Wei; Wei, Anne

doi:10.1016/j.jphotochem.2022.114114

Cited by 7 publications

(3 citation statements)

References 44 publications

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“…The binding energies of photoelectrons of Ti 2p 1/2 and Ti 2p 3/2 in Figure S4a, Supporting Information, are located at the binding energies of 464.1 and 458.5 eV with the interval of 5.6 eV, and no obvious peaks belong to Ti 3+ are observed. [ 41 ] The binding energies of photoelectron of Zn 2p 1/2 and Zn 2p 3/2 in Figure S4b, Supporting Information, are located at 1044.4 and 1021.4 eV with the interval of 23.0 eV. [ 39 ] These results are in good agreement with previously reported values, indicating the successful preparation of ZnTi‐LDH photocatalyst.…”

Section: Resultssupporting

confidence: 86%

“…Then, the prepared ZnTi-LDHs were characterized by Fourier transform infrared (FT-IR) spectra, which clearly shows that there are no obvious differences between the spec-tra of unmodified and modified ZnTi-LDH (Figure 2b), meaning that the modification processes did not change the structure of ZnTi-LDH. The broad peaks at 3200-3400 cm −1 are originated by the bonded and free O-H vibration on the surface of laminar layers, [41] while the peaks at 1505 and 1381 cm −1 are attributed to the vibrations of carbonate ions between the layers. [42] The element components of Pd-ZnTi-LDH-A200 were analyzed by X-ray photoelectron spectroscopy (XPS), and the results are displayed in Figure S4, Supporting Information.…”

Section: Characterizationsmentioning

confidence: 99%

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Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH

Zhang

Yang

et al. 2023

Advanced Energy Materials

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The selective oxidation of methane to high value‐added liquid oxygenated compounds under mild conditions is of great significance to promote the efficient utilization of the carbon source, but it also faces the dilemma of low activity and over‐oxidation. Here, ZnTi‐layered double hydroxides (LDH)‐A200 photocatalysts with Pd loading are prepared to achieve efficient oxidation of methane, with O2 as an oxidant under ambient condition. The highest generation rate of C1 liquid products (methanol and formaldehyde) reaches 4924.47 µmol g−1 h−1 with a selectivity close to 100% over 0.5Pd‐ZnTi‐LDH‐A200, which is 20 times higher than that of bare ZnTi‐LDH‐A200. The photochemical results show that the modified photocatalysts present much higher generation and separation efficiency of electron‐hole pairs. In situ X–ray photoelectron spectroscopy indicates that Pd nanoparticles are the hole acceptor, which is beneficial to charge separation in the photocatalysis. Furthermore, electron spinresonance spectroscopy and temperature–programmed–desorption analysis prove that Pd loading is helpful to the adsorption of methane and oxygen on the surface of ZnTi‐LDH‐A200, promoting the production of reactive oxygen species and activation of methane. All these factors work together to promote the efficient conversion of CH4 to high value‐added C1 oxygenates.

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Section: Resultssupporting

confidence: 86%

Section: Characterizationsmentioning

confidence: 99%

Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH

Zhang

Yang

et al. 2023

Advanced Energy Materials

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“…showed inhibition effects on A. flavus . Recently, it had been reported that photocatalysis based on semiconductors can be used as an effective way to control fungi [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Efficient Inhibition of Aspergillus flavus to Reduce Aflatoxin Contamination on Peanuts over Ag-Loaded Titanium Dioxide

Yang

Wei

Yang

et al. 2023

Toxins

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Peanuts are susceptible to aflatoxins produced by Aspergillus flavus. Exploring green, efficient, and economical ways to inhibit Aspergillus flavus is conducive to controlling aflatoxin contamination from the source. In this study, Ag-loaded titanium dioxide composites showed more than 90% inhibition rate against Aspergillus flavus under visible light irradiation for 15 min. More importantly, this method could also reduce the contaminated level of Aspergillus flavus to prevent aflatoxins production in peanuts, and the concentrations of aflatoxin B1, B2, and G2 were decreased by 96.02 ± 0.19%, 92.50 ± 0.45%, and 89.81 ± 0.52%, respectively. It was found that there are no obvious effects on peanut quality by evaluating the changes in acid value, peroxide value, and the content of fat, protein, polyphenols, and resveratrol after inhibition treatment. The inhibition mechanism was that these reactive species (•O2−, •OH−, h+, and e−) generated from photoreaction destroyed cell structures, then led to the reduced viability of Aspergillus flavus spores. This study provides useful information for constructing a green and efficient inhibition method for Aspergillus flavus on peanuts to control aflatoxin contamination, which is potentially applied in the field of food and agri-food preservation.

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Low oxygen adsorption energy barrier architectures to facilitate microenvironmental photocatalytic disinfection in Wei River

Yao,

Bai,

Ding

et al. 2024

Chemical Engineering Journal

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Highly efficient and photo-triggered elimination of Aspergillus fumigatus spores by Zn-Ti layered double hydroxide

Cited by 7 publications

References 44 publications

Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH

Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH

Efficient Inhibition of Aspergillus flavus to Reduce Aflatoxin Contamination on Peanuts over Ag-Loaded Titanium Dioxide

Low oxygen adsorption energy barrier architectures to facilitate microenvironmental photocatalytic disinfection in Wei River

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Highly efficient and photo-triggered elimination of Aspergillus fumigatus spores by Zn-Ti layered double hydroxide

Cited by 7 publications

References 44 publications

Highly Selective Conversion of CH4 to High Value‐Added C1 Oxygenates over Pd Loaded ZnTi‐LDH

Highly Selective Conversion of CH4 to High Value‐Added C1 Oxygenates over Pd Loaded ZnTi‐LDH

Efficient Inhibition of Aspergillus flavus to Reduce Aflatoxin Contamination on Peanuts over Ag-Loaded Titanium Dioxide

Low oxygen adsorption energy barrier architectures to facilitate microenvironmental photocatalytic disinfection in Wei River

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Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH

Highly Selective Conversion of CH₄ to High Value‐Added C₁ Oxygenates over Pd Loaded ZnTi‐LDH