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首页> 外文期刊>Chemical engineering journal >Hollow porous core-shell ZnFe2O4/AgCl nanocubes coated with EDTA and Ag nanoparticles for enhanced photocatalytic performances of visible-light-driven
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Hollow porous core-shell ZnFe2O4/AgCl nanocubes coated with EDTA and Ag nanoparticles for enhanced photocatalytic performances of visible-light-driven

机译：中空多孔芯 - 壳ZnFe2O4 / AgCl纳米孔涂有EDTA和Ag纳米粒子，用于增强可见光驱动的光催化性能

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摘要

The hollow porous core-shell ZnFe2O4/AgCl@EDTA-Ag composites with high antibacterial efficiency and cyclic stability are facilely synthesized and used as visible-light triggered antibacterial agent for Escherichia coli bacteria. The hollow porous cores not only improve the reflection and scattering of visible-light, but also facilitate the transfer rate of photogenerated electrons. Moreover, carbon layer further enhances the conductivity and mechanical strength of cores, as well as accelerates electron transfer during photocatalytic antibacterial process. The as-prepared hollow porous core-shell ZnFe2O4/AgCl@EDTA-Ag composites possess excellent antibacterial properties and stability, delivering a high antibacterial rate of 89.64% under visible-light irradiation after 25 min and a decent recovery rate of 76.33% after 10 cycles. In addition, the antibacterial reaction rate constant is 0.09078 min(-)1. These values are among the higher reported for ZnFe2O4-based materials with different morphologies and nanostructures. The resultant hollow porous core-shell ZnFe2O4/AgCl@EDTA-Ag composites display the potential practical application for medical disinfection.
机译：具有高抗菌效率和环状稳定性的中空多孔芯 - 壳ZnFe2O4 / AgCl @ EDTA-AG复合材料被易于合成并用作大肠杆菌细菌的可见光触发抗菌剂。中空多孔芯不仅改善了可见光的反射和散射，而且促进了光生电子的转移速率。此外，碳层进一步增强了核的电导率和机械强度，以及在光催化抗菌方法期间加速电子传递。 AS制备的中空多孔芯 - 壳ZnFe2O4 / AgCl @ EDTA-Ag复合材料具有优异的抗菌性能和稳定性，在25分钟后的可见光照射下递送高抗菌速率为89.64％，10次后10分钟后的体面恢复率为76.33％循环。此外，抗菌反应速率常数为0.09078 min（ - ）1。这些值是具有不同形态和纳米结构的基于ZnFe2O4的材料的较高报道。所得的中空多孔芯 - 壳ZnFe2O4 / AgCl @ EDTA-AG复合材料显示医疗消毒的潜在实际应用。

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