Well-construction of Zn2SnO4/SnO2@ZIF-8 core–shell hetero-structure with efficient photocatalytic activity towards tetracycline under restricted space

• Published in: Chinese journal of chemical engineering Vol. 52; no. 12; pp. 45 - 55
• Main Authors: Wu, Jiafei, Jin, Yuning, Wu, Danping, Yan, Xiaoying, Ma, Na, Dai, Wei
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2022; Key Laboratory of the Ministry of Education for Advanced Catalysis Materials,College of Chemistry and Life Science,Zhejiang Normal University,Jinhua 321004,China%National Center for Nanoscience and Technology,Beijing 100190,China%College of Geography and Environmental Sciences,Zhejiang Normal University,Jinhua 321004,China
• Subjects: Adsorption; Catalyst; Degradation; Tetracycline; ZIF-8; Zn2SnO4/SnO2; Degradation; ZIF-8; Adsorption; Catalyst; Zn2SnO4/SnO2; Tetracycline
• ISSN: 1004-9541; 2210-321X
• DOI: 10.1016/j.cjche.2022.04.016

[Display omitted] Nowadays, efficient removal of antibiotic (e.g. tetracycline, TC) from water bodies has been of great global concern. Hereby, a novel Zn2SnO4/SnO2@ZIF-8 photo-catalyst was first synthesized by a facile self-assembly in-situ growth method. Zn2SnO4/SnO2@ZIF-8 exhibits a remarkable photocatalytic activity towards TC under visible-light driven with a rapid rate constant of 1.5 × 10−2 min−1, and a removal efficiency of 81.2%, which is superior to some catalysts in the literature. Importantly, the photocatalytic activity of Zn2SnO4/SnO2@ZIF-8 could still remain ∼77% after the fifth cycle, indicating its good stability and reusability. The remarkable performances of adsorption and photocatalytic were attributed to associative effects of catalytic activity of Zn2SnO4/SnO2 and the unique porous nanostructure and stability of ZIF-8. This work could aid the future design and preparation of novel MOFs composite catalysts for efficient elimination of antibiotics from water.