期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 607, 期 -, 页码 933-941出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.09.084
关键词
MIL-125-NH2@BiOI; Inlaid structure; Photocatalysis; Cr(VI)/tetracycline; Simultaneous removal
资金
- Natural Science Foundation of Jiangsu Province Youth Fund [BK20210628]
- Scientific Research Foundation from Nanjing Forestry University
A flower-like MIL-125-NH2@BiOI composite was fabricated by a solvothermal method for the simultaneous elimination of Cr(VI)/tetracycline mixed pollutants under visible light. The strong interaction between amino in MIL-125-NH2 and Bi3+ of BiOI promotes the formation of the unique inlaid structure, leading to accelerated charge carrier transfer. The photocatalytic efficiency can be further boosted in the coexistence of Cr(VI) and tetracycline, showcasing a synergistic effect for improved removal efficiency.
A subtle flower-like MIL-125-NH2@BiOI was fabricated by a facile solvothermal method for simultaneously eliminating Cr(VI)/tetracycline mixed pollutants under visible light. The strong interaction between amino in MIL-125-NH2 and Bi3+ of BiOI promotes the formation of this unique inlaid structure and enables the favorable contact between MIL-125-NH2 and BiOI, thus accelerating the transfer of charge carriers. Remarkably, MIL-125-NH2@BiOI displays a superior activity compared with that of two monomers for the photocatalytic reduction of Cr(VI) and degradation of tetracycline. More significantly, the photocatalytic efficiency can be further boosted in the coexistence of Cr(VI) and tetracycline, which is 1.8 and 1.6 times that of single Cr(VI) and tetracycline, respectively. The synergistic effect between Cr (VI) reduction and tetracycline oxidative degradation can further facilitate the separation of photo induced electrons and holes, resulting in the improved efficiencies in the Cr(VI)/tetracycline coexistent environment. This work sheds light on that MOF-based photocatalysts possess huge potential for practical environmental remediation. (C) 2021 Elsevier Inc. All rights reserved.
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