数字农科院2.0

Joule Heating-Induced Active Mg0 into Nano-Mg Composites for Boosted Oxidation and Antiviral Performance

文献类型： 外文期刊

作者： Wu, Xuan;Jiao, Yubing;Jia, Chao;Sun, Liming;Yu, Fengbo;Lin, Litao;Gao, Jie;Teng, Tao;He, Zhelin;Li, Aodi;Zhang, Shicheng;Yang, Jinguang;Wang, Shaobin;Zhu, Xiangdong

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关键词： nano-Mg-0/MgO composite;advancedoxidationprocesses;HSV-2 inactivation;flash Joule heating

期刊名称： ACS ES&T ENGINEERING

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年卷期： 2024 年

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收录情况： 无来源刊（2024版）

摘要： Nano-Mg-0 composite has unlocked new avenues for organic contaminant removal and virus inactivation due to active magnesium in earth-abundance and eco-friendliness. However, the pyrolysis synthesis hinders the chemical activity of the as-prepared nano-Mg composite. Herein, we report instantaneous flash Joule heating (FJH) to introduce active Mg-0 to form a nano-Mg-0/MgO composite for active oxidation and antiviral performance. Mg-0 could be formed by FJH in milliseconds through Mg-O bond fracturing and thin aromatic-carbon layer deposition due to the rapid heating/cooling rate for blocking Mg-0 oxidation. It was found that the Mg-0 content was enhanced with an increasing pulsing voltage in preparation of the nano-Mg composite, finally improving both its oxidation and antiviral capabilities. Density functional theory calculations indicate that Mg-0 increases the binding affinity for an oxidant, thereby enhancing the oxidation capacity. A plaque reduction assay indicated that the nano-Mg-0/MgO composite directly inactivated herpes simplex virus type 2. Moreover, toward a large-scale production, we developed a continuous FJH automation apparatus to manufacture the nano-Mg-0/MgO composite, which offers a highly efficient platform for scale-up fabrication and wide applications.

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