Constructing V4C3Tx MXene@Highly porous carbon nitride Schottky junction for efficient photocatalytic tetracycline degradation

Li，Shilin1; Yuan，Zeyu1; Li，Yilin1; Butenko，Denys2; Li，Junzhi3; Chen，Ruoyu1; Zhao，Lianjia1; Ji，Yuan4; Li，Guangshe3; Han，Wei5

2023-12-15

10.1016/j.apsusc.2023.158358

Applied Surface Science   Impact Factor & Quartile

0169-4332

Carbon nitride is a popular choice for degrading organic water pollutant. In this article, a highly porous carbon nitride (HPCN) was synthesized and the Schottky junction was constructed between VCT MXene (VC) and HPCN by electrostatic self-assembly method. The VC@HPCN (VCN) photocatalyst has an enhanced ability to help the separation of light-induced electron-hole pairs, promote the photocatalytic performance and served as an active site for generating ·O and ·OH during the photo degrading process. The tetracycline removal efficiency for VCN in 20 min was 89.58%, which was 4 times photocatalytic activity to HPCN. A DFT calculation was carried out to explore the electron motion path during the degradation and provided a possible scheme of photocatalytic mechanism by LC-MS test. This work has studied the photocatalytic mechanism of VCN photocatalyst, providing a new choice of carbon nitride-based photocatalyst in organic pollutant degradation.

Carbon nitride Electrostatic self-assembly Photo degradation Schottky junction V4C3Tx MXene

English

Others

National Natural Science Foundation of China[12204219];National Natural Science Foundation of China[21571080];National Natural Science Foundation of China[62174152];

MATERIALS SCIENCE

2-s2.0-85169807922

Scopus

1.College of Physics,International Center of Future Science,Jilin University,Changchun,130012,China
2.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun,130012,China
4.College of Physics,Jilin University,Changchun,130012,China
5.College of Physics,the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,International Center of Future Science,Jilin university,130012,China

Li，Shilin,Yuan，Zeyu,Li，Yilin,et al. Constructing V4C3Tx MXene@Highly porous carbon nitride Schottky junction for efficient photocatalytic tetracycline degradation[J]. Applied Surface Science,2023,640.

Li，Shilin.,Yuan，Zeyu.,Li，Yilin.,Butenko，Denys.,Li，Junzhi.,...&Han，Wei.(2023).Constructing V4C3Tx MXene@Highly porous carbon nitride Schottky junction for efficient photocatalytic tetracycline degradation.Applied Surface Science,640.

Li，Shilin,et al."Constructing V4C3Tx MXene@Highly porous carbon nitride Schottky junction for efficient photocatalytic tetracycline degradation".Applied Surface Science 640(2023).