文献类型： 外文期刊
第一作者： Liang, Shan
作者： Liang, Shan;Liu, Haotian;Zhang, Ruifen;Zhang, Mingwei;Liang, Shan;Liu, Haotian;Zhang, Ruifen;Zhang, Mingwei;Liang, Shan;Liu, Haotian;Zhang, Ruifen;Zhang, Mingwei;Liang, Shan;Zong, Min-Hua;Lou, Wen-Yong;Liu, Haotian;Du, Xinxin
作者机构：
关键词： Nanozyme; Oxidase; Ce-UiO-66; Ce-MOF-808; Chlorpyrifos (CPs); Tetracyclines (TCs)
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 496 卷
页码：
收录情况： SCI
摘要： Oxidases play a crucial role in living systems and in vitro biotransformation. Nonetheless, the intrinsic fragility of natural oxidases confined their extensive utilization. Nanozymes with intrinsic oxidase-mimicking activity are emerging as potential alternatives to natural oxidases. Herein, inspired by the multicopper laccase, a representative member of oxidases, Ce-UiO-66 and Ce-MOF-808 with inherent multivalence were designed as biomimetic oxidase nanozymes for environmental catalysis. The multivalent cerium (Ce4+/Ce3+) within their frameworks can effectively mimic the multicopper (Cu2+/Cu+) active center of laccase, thus showing remarkable oxidase-like activity toward the oxidation of 2,4-dichlorophenol (2,4-DP) and 3,3',5,5'-tetramethylbenzidine (TMB). By comparison with natural oxidase, Ce-UiO-66 and Ce-MOF-808 demonstrated higher catalytic efficiency at the same mass concentration. They also exhibited satisfactory batch-to-batch, long-term storage, and recycling stability. Accordingly, Ce-UiO-66 and Ce-MOF-808 were practiced for colorimetric sensing of chlorpyrifos (CPs) and oxidative elimination of tetracyclines (TCs), indicating their potentiality for environmental remediation. This work implemented a metal active center biomimetic strategy for rational design of efficient oxidase nanozymes and broadened their practical applications, which would contribute to the development of nanozyme from both theoretical and practical aspects.
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