Synthesis of molybdenum trioxide/graphite carbon nitride heterojunction modified by biomass carbon dots and its application in photocatalytic degradation of methylene blue

Tang, Fenglin; Tang, Jiaojiao; Wang, Dan; Deng, Caixia; Li, Shuang; Yang, Xiupei

doi:10.1016/j.diamond.2023.110078

Cited by 12 publications

(1 citation statement)

References 62 publications

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“…Figure 6a showed the UV absorption spectra of the MB aqueous solution with PBF‐OCN‐1 under light for different time, and it could be clearly seen that the intensity of the MB absorption peaks gradually decreased during the photocatalytic process, and the color of the MB solution gradually became lighter. Figure 6b showed the UV absorption spectra of all the samples tested after 360 min of photocatalytic treatment, compared with the MB solution without photocatalyst, the light absorption intensities of the MB solution with PBF, OCN, and PBF‐OCN decreased significantly, that is, MB was effectively adsorbed and decomposed 66 . The imidazole cation in PBF could produce electrostatic interaction with MB, and could adsorb a certain amount of MB, 67,68 at the same time, OCN showed photocatalytic degradation performance for MB 69 .…”

Section: Resultsmentioning

confidence: 99%

Poly(ionic liquid) composite oxygenated graphite carbon nitride for enhanced photocatalytic and synergistic bacteriostasis

Song,

Luan,

Sun

et al. 2024

J of Applied Polymer Sci

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With the increase of drug‐resistant bacteria and the limitations of traditional antibacterial methods, photocatalytic inhibition has received widespread attention as a novel antibacterial method. In this paper, poly(1‐vinyl‐3‐ethylimidazolium tetrafluoroborate) composite oxygenated carbon nitride (PBF‐OCN) were prepared by in situ free radical polymerization using 1‐vinyl‐3‐ethylimidazolium tetrafluoroborate and OCN. The results showed that the light absorption ability and electron hole separation rate of PBF‐OCN were greatly improved compared with that of OCN, and the rate constant for photocatalytic removal MB of PBF‐OCN‐1 was about 1.39 times of that OCN. The growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) could be significantly inhibited by PBF‐OCN under visible light, among which, the inhibition of PBF‐OCN‐3 was the most excellent, with the diameter of the circle of inhibition reaching 20.69 mm for E. coli, and 21.30 mm for S. aureus, and the inhibition rate against E. coli calculated by plate counting method reached 97.0%. The minimum inhibitory concentration for E. coli and S. aureus was 0.0625 mg/mL, respectively, and the possible inhibition mechanism of the samples was explored. The good synergistic antibacterial effect of PBF‐OCN is expected to be applied in water treatment, antibacterial devices, packaging materials, and other fields.

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Section: Resultsmentioning

confidence: 99%