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Photocatalysis provides a green strategy to eliminate the emerging pollutants of antibiotics. However, it remains challenging to design robust photocatalyst to fulfil the requirement of industrial implementation. Herein, a novel Z-scheme covalent triazine-based framework (CTF)-Bi2WO6 heterojunction photocatalyst was rationally fabri-cated by interfacial engineering of layered CTF-1 into flower-like Bi2WO6 for photocatalytic removal of anti-biotic, using tetracycline (TC) as a representative. The structural, physicochemical, and electrochemical capabilities of the as-prepared photocatalyst were explored in detail by a range of advanced analyses. The results showed that the optimized CTF-Bi2WO6 exhibited superior photocatalytic performance, affording a TC removal efficacy of 77.14 % within 60 min, which was approximately 18 times and 2.67 times that of individual CTF-1 and Bi2WO6, respectively. The boosting property could be attributed to the Z-scheme heterostructure, which significantly reinforced the transfer and separation of photoinduced carriers. Meanwhile, the dominate reactive species participating in the degradation process were probed as & BULL;O2? and h+ based on scavenger experiments and ESR analyses. Finally, the degradation pathway of TC by CTF-Bi2WO6 was proposed based on intermediate products, and the toxicity of TC and its degradation products were estimated by the toxicity estimation software tool (T.E.S.T.). This study showcases a feasible pathway towards designing CTF-based Z-scheme heterojunction photocatalysts for effective and eco-friendly antibiotic wastewater treatment.
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JOURNAL OF WATER PROCESS ENGINEERING
ISSN: 2214-7144
Year: 2022
Volume: 49
7 . 0
JCR@2022
6 . 3 0 0
JCR@2023
ESI Discipline: ENGINEERING;
ESI HC Threshold:66
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 22
SCOPUS Cited Count: 23
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0