Multifunctional g-C3N4/Ag NPs intercalated GO composite membrane for SERS detection and photocatalytic degradation of paraoxon-ethyl

Zhao, Lei; Deng, Cheng; Xue, Sha; Liu, Hongbin; Hao, Limei; Zhu, Mengfu

doi:10.1016/j.cej.2020.126223

Cited by 88 publications

(20 citation statements)

References 55 publications

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“…It is proved that the composite sample has stronger absorption photocatalytic activity than g‐C 3 N 4. 44,45 Figure 4C compares the visible light absorption spectra of the composite samples with different Co 3 O 4 modification amounts, which apparently responds to the results of Figure 4B. When the mass ratio of Co 3 O 4 increases gradually, the red shift of the absorption edge of the composite sample becomes larger and larger.…”

Section: Resultssupporting

confidence: 61%

ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

et al. 2022

Intl J of Energy Research

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Summary The imidazolium salt zeolite framework (ZIFs) organometallic framework materials have the advantages of high stability and controllable structure and are excellent materials for preparing photocatalytic semiconductors. In this study, the regular dodecahedron material ZIF‐67 was used as the substrate, and the intermediate was calcined after the substrate adsorbed Co‐based metal clusters to obtain Co3O4 with a hollow double‐shell structure. Through SEM and fluorescence detection, it can be seen that the Co3O4 material obtained by this method not only has a unique spatial morphology but also shows a strong light absorption performance and a high charge transfer rate. In addition, graphite‐like phase carbon nitride (g‐C3N4), as a traditional catalyst, has been unable to move toward industrialization due to its low electron utilization and light absorption properties. So here, the composite catalyst CNCO‐x (x = 1, 2, 2, 3, 4, and 5) was prepared by simply anchoring Co3O4 and g‐C3N4 to improve the catalytic performance of g‐C3N4. The results show that the introduction of Co3O4 not only improves the electron utilization of g‐C3N4 but forms a charge transfer bridge channel (p‐n heterojunction) after contact between the two, which effectively promotes the rapid transfer of photoelectrons between the contact interfaces. Finally, when the amount of Co3O4 introduced is 15%, the amount of hydrogen produced in 5 hours can reach 0.163 mmol (3.26 mmol g−1 hour−1), which is 163 times that of pure g‐C3N4.

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Section: Resultssupporting

confidence: 61%

ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

et al. 2022

Intl J of Energy Research

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“…8(a) contains multiple peaks – 734 cm −1 (NO 2 scissor and C–C bending vibration), 858 cm −1 (NO 2 scissor vibration), 1111 cm −1 (asymmetric NO 2 stretching vibration, planar C–H vibration), 1346 cm −1 (symmetric stretching vibration of NO 2 ), and 1593 cm −1 (stretching vibration of aromatic ring). 42–44…”

Section: Resultsmentioning

confidence: 99%

Large-area and low-cost SERS substrates based on a gold-coated nanostructured surface fabricated on a wafer-scale

et al. 2022

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“…The equal amount of AgNPs (0.12 mg) provide only 28 %×h -1 degradation of paraoxon-ethyl (Fig. 7A) [43].…”

Section: Plausible Pathways Of Synergetic Degradation Using Pet@uio-66-ag25mentioning

confidence: 99%

Synergetic effect of metal-organic framework UiO-66 and silver plasmonic nanoparticles on PET waste support in degradation of nerve agent simulant

Semyonov

Kogolev

Trelin

et al. 2021

Preprint

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The combination of versatile metal-organic frameworks (MOFs) with high porosity and catalytic activity with plasmonic nanoparticles (PNPs) defines a new paradigm in photocatalytic degradation of ecotoxicants. Herein, we prepared a novel composite from a waste polyethylene terephthalate, MOF – UiO-66 and silver nanoparticles (AgNPs) for degradation of nerve agent simulant paraoxon-ethyl, where the additional plasmon excitation at 455 nm enhances Lewis’s acid activity of UiO-66. The obtained material was characterized by spectroscopic: XRD, UV-Vis, FT-IR, XPS, microscopic: SEM, TEM and ICP-MS and TGA. We found the balance between pore availability of UiO-66 for paraoxon-ethyl adsorption to Lewis sites, plasmonic enhancement, and cost minimization in optimal material through variation of added Ag precursor amounts PET@UiO-66-Ag25. Synergetic mechanisms enhanced the degradation rate by more than 3 times compared to PET@UiO-66 with the quantitative paraoxon degradation for 1 hour (>95 %) and >99 % for 2 hours. Moreover, the prepared material is overperforming other materials in terms of environmental impact, easiness of preparation, visible light usage, high apparent quantum yield and recycling performance.

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Multifunctional g-C3N4/Ag NPs intercalated GO composite membrane for SERS detection and photocatalytic degradation of paraoxon-ethyl

Cited by 88 publications

References 55 publications

ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

Large-area and low-cost SERS substrates based on a gold-coated nanostructured surface fabricated on a wafer-scale

Synergetic effect of metal-organic framework UiO-66 and silver plasmonic nanoparticles on PET waste support in degradation of nerve agent simulant

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Multifunctional g-C3N4/Ag NPs intercalated GO composite membrane for SERS detection and photocatalytic degradation of paraoxon-ethyl

Cited by 88 publications

References 55 publications

ZIF ‐67 derived hollow double‐shell core Co 3 O 4 modified g‐C 3 N 4 to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

ZIF ‐67 derived hollow double‐shell core Co 3 O 4 modified g‐C 3 N 4 to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

Large-area and low-cost SERS substrates based on a gold-coated nanostructured surface fabricated on a wafer-scale

Synergetic effect of metal-organic framework UiO-66 and silver plasmonic nanoparticles on PET waste support in degradation of nerve agent simulant

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ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution

ZIF ‐67 derived hollow double‐shell core Co ₃ O ₄ modified g‐C ₃ N ₄ to construct p‐n heterojunction for efficient photocatalytic hydrogen evolution