Visible light induced g-C3N4/TiO2/Ti3C2 ternary Z-scheme heterojunction photocatalyst for efficient degradation

Menghao Luo; Hange Feng; Yuechuan Hu; Keke Chen; Zibo Dong; Shaolin Xue

doi:https://doi.org/10.1007/s13391-022-00377-1

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자료유형: 학술저널

저자정보: Menghao Luo (Donghua University) Hange Feng (Donghua University) Yuechuan Hu (Donghua University) Keke Chen (Donghua University) Zibo Dong (Donghua University) Shaolin Xue (Donghua University)

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.19 No.1

발행연도: 2023.1

수록면: 94 - 107 (14page)

DOI: https://doi.org/10.1007/s13391-022-00377-1

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Photocatalytic degradation has received considerable emphasis since it shows signifi cant possibilities in environmentalpollution. In this work, ternary Z-scheme heterojunction g-C 3 N 4 /TiO 2 /Ti 3 C 2 photocatalysts are designed and fabricated. The Z-scheme heterojunctions formed on the surfaces of g-C 3 N 4 and TiO 2 dramatically modify the photocatalyticperformances of the compound under illumination. Meanwhile, in this process, multilayer Ti 3 C 2 , as the transport mediumof Z-scheme heterojunction, is tightly bonded to TiO 2 generated by hydrothermal oxidation and g-C 3 N 4 with large specifi csurface area, which eff ectively facilitates the space charge separation and depresses the charge recombination. When theaddition amount of TiO 2 /Ti 3 C 2 is 80 mg and calcined at 450 ℃ for 4 h, g-C 3 N 4 /TiO 2 /Ti 3 C 2 has the greatest photocatalyticperformance, and the kinetic constant for degradation methyl orange (MO) was about 3.62 times that of g-C 3 N 4 and 14.55times that of Ti 3 C 2 , respectively. This work illustrates that g-C 3 N 4 /TiO 2 /Ti 3 C 2 has outstanding potential and off ers novelinsights for designing and synthesizing new ternary heterojunction materials.

#Photocatalysis · Ti 3 C 2 MXene · Hydrothermal assisted calcination · g-C 3 N 4 /TiO 2 /Ti 3 C 2 · Z-scheme heterojunction.

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