| Preparation of 2D/2D g-C3N4/Ti3C2 MXene composites by calcination synthesis method for visible light photocatalytic degradation of tetracycline |
| Le-Le Qiao1, Feng-Jun Zhang1,2, Chun-Mei Kai2,3, Chao Liu2, Ying-Rui Wang2, Won-Chun Oh4 |
1Key Laboratory of Functional Molecule Design and Interface Process , Anhui Jianzhu University , Hefei 230601 , Anhui , People’s Republic of China
2Anhui Key Laboratory of Advanced Building Materials , Anhui Jianzhu University , Hefei 230022 , Anhui , People’s Republic of China
3Construction Economy and Real Estate Management Research Center , Anhui Jianzhu University , Hefei 230601 , Anhui , People’s Republic of China
4Department of Advanced Materials Science and Engineering , Hanseo University , Seosan 31962 , South Korea |
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Received: July 17, 2022; Revised: October 26, 2022 Accepted: November 14, 2022. Published online: November 28, 2022. |
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| ABSTRACT |
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In this work, an ultrathin 2D/2D g-C3N4/Ti3C2 heterojunction was synthesized by direct calcination of a mixture of urea and multilayer Ti3C2 for photocatalytic degradation of tetracycline. Among them, urea is the precursor for the generation of g-C3N4 and generates gas to peel the multilayer Ti3C2 into fewer layers while reacting, solving the problem of low yield for the preparation of fewer layers of Ti3C2. The experimental results of tetracycline degradation under visible light showed that pure g-C3N4 (UCN) exhibited weak photoactivity; however, its photocatalytic performance was enhanced when Ti3C2 was coupled with g-C3N4. The best sample (5TC) could degrade 90.1% of tetracycline within 30 min. After four cycles of stability test, the photocatalytic performance did not change signifi cantly, indicating that the prepared 2D/2D g-C3N4/Ti3C2 heterojunction possesses strong photocatalytic performance along with good stability.
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| Key words:
g-C3N4 · Ti3C2 · Urea · Photoactivity · Tetracycline
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