Abstract
A series of polydopamine (PDA)-modified flower-like TiO2 photocatalysts was prepared by in situ auto-polymerization. The catalytic performance of the photocatalysts and the successful construction of S-scheme heterojunctions were evaluated and verified by a series of characterizations. A loading of 3% PDA/TiO2 (PT3) elicited showed the highest k-value (0.015 min−1) for the removal of tetracycline (TC), which was a multiple of that of PT2 (1.81) and PT4 (1.56). The main active substances for TC photodegradation were •O2– and h+. The catalytic performance of the photocatalysts and the successful construction of S-scheme heterojunctions were mainly evaluated and verified by EPR and XPS. The combination of organic (PDA) and inorganic (TiO2) semiconductors used herein is promising to treat antibiotic-like pollutants in wastewater.
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This work was financially supported by the National Natural Science Foundation of China (No.51208068).
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Feng, S., Wang, S., Lei, C. et al. Photocatalytic Degradation of Antibiotics by S-Scheme Heterojunctions Constructed by Thermally Sheared Flower-Like TiO2-Loaded PDA. Catal Lett 153, 3783–3794 (2023). https://doi.org/10.1007/s10562-022-04268-w
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DOI: https://doi.org/10.1007/s10562-022-04268-w