Acta Photonica Sinica, Volume. 50, Issue 11, 1116001(2021)
Facile Synthesis of Core-shell Structure ZnO/g-C3N4 Nanocomposites with Enhanced Photocatalytic Activity
Figures & Tables(12)
Fig. 6. Appearance color contrast and UV-vis absorption spectra of as-prepared samples
Fig. 8. Photocatalytic degradation of MB，MO and RhB under simulated light and visible light irradiation using as-prepared samples at room temperature
Fig. 9. Free radical trapping experiments during the photocatalytic degradation of MB using as-prepared samples under simulated light irradiation
Fig. 10. Schematic illustration of charge transfer process and photocatalytic reaction mechanism in ZnO/g-C3N4 composite
Table 1. Lattice constants and grain size of ZnO and D/Z-x composites
View tableView in ArticleTable 1. Lattice constants and grain size of ZnO and D/Z-x composites
Sample a/nm c/nm Crystallite size/nm ZnO 0.324 8 0.521 3 36 D/Z-0.3 0.324 4 0.521 2 32 D/Z-0.5 0.324 4 0.519 5 31 D/Z-1 0.324 2 0.518 2 31 D/Z-2 0.323 9 0.520 9 30 D/Z-3 0.324 0 0.520 5 28
Table 2. Comparison of photocatalytic activity of ZnO/g-C3N4 nanocomposite photocatalysts prepared by different methods
View tableView in ArticleTable 2. Comparison of photocatalytic activity of ZnO/g-C3N4 nanocomposite photocatalysts prepared by different methods
Preparation method MB solution（volume，concentration） Mass of
photocatalyst/mg
Light source；
wavelength range
Best degradation efficiency Ref. Pymer network gel 100 mL，4 mg/L 50 300 W Xe lamp；
Simulated sunlight，
λ>300 nm；
Visible light，λ>400 nm
100% in 20 min；
96% in 60 min
This work Hydrothermal 50 mL，10 mg/L 50 Xe lamp；Visible light 92% in 120 min ［ 45 ］Pyrolysis & Atomic layer
deposition
200 mL，6 mg/L 30 100 W halogen lamp；
800 nm>λ>400 nm
96% in 120 min ［ 46 ］Pyrolysis & solid-state
grinding
30 mL，10 mg/L 40 500 W Xe lamp；
λ>420 nm
76% in 100 min ［ 47 ］Pyrolysis & hydrothermal & ethanolic reflux 100 mL，10 mg/L 100 500 W Xe lamp；
Visible light，
95% in 50 min ［ 48 ］Pyrolysis 200 mL，10 mg/L 200 500 W Xe lamp；
λ>380 nm
80% in 120 min ［ 49 ］Pyrolysis & hydrothermal
& calcination
100 mL，10 mg/L 100 300 W Xe lamp；
λ>420 nm
98% in 70 min ［ 50 ］one-pot in situ 35 mL，10 mg/L 50 500 W Xe lamp；
λ>420 nm
95.7% in 150 min ［ 51 ］Pyrolysis & hydrothermal 100 mL，50 mg/L 100 500 W Xe lamp；
λ>420 nm
90% in 180 min ［ 52 ］Pyrolysis & hydrothermal
& ultrasonic mixing
50 mL，10 mg/L 25 Xe lamp；Visible light 97% in 30 min ［ 53 ］
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Han LI, Kaiyi LUO, Wenyu HU, Jing LI, Ziqiang WANG, Chao MA, Zemei PAN, Qiuping ZHANG, Huan YUAN, Fei YU, Man SONG, Ming XU. Facile Synthesis of Core-shell Structure ZnO/g-C3N4 Nanocomposites with Enhanced Photocatalytic Activity[J]. Acta Photonica Sinica, 2021, 50(11): 1116001
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Received: May. 9, 2021
Accepted: Jul. 5, 2021
Published Online: Dec. 2, 2021
The Author Email: XU Ming (hsuming_2001@aliyun.com)
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