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首页> 外文期刊>Journal of the Korean Ceramic Society >Synthesis of g-C3N4/diatomite/MnO2 composites and their enhanced photo-catalytic activity driven by visible light
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Synthesis of g-C3N4/diatomite/MnO2 composites and their enhanced photo-catalytic activity driven by visible light

机译：合成g-C3N4 /硅藻土复合材料汇总由他们增强photo-catalytic活动可见光

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摘要

Herein, a novel visible-light-responsive g-C3N4/diatomite/MnO2 composite was successfully fabricated through a simple redox reaction method. The structure and morphology of the sample are mainly characterized by X-ray diffraction (XRD), photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and ultraviolet-visible spectroscopy (UV-Vis). In this paper, the photo-catalytic activity of the sample was evaluated by degradation RhB under visible-light irradiation. The results shown that, compared with g-C3N4/diatomite composite, MnO2, g-C3N4, diatomite, the prepared g-C3N4/diatomite/2.5%MnO2 composite exhibits better photo-catalytic activity and stability. At the same time, the effect of different MnO2 additions on the photo-catalytic activity of the composite material was further analyzed. The results indicated that the g-C3N4/MnO2/diatomite composites exhibit highest photo-catalytic activity when the adding amount of MnO2 reached 2.5%. The degradation rate of the g-C3N4/diatomite/2.5%MnO2 is 93% after recycling for three times, showing good stability and reusability. Moreover, the mechanism of catalytic performance enhancement also has been discussed.
机译：在此,小说visible-light-responsiveg-C3N4 /硅藻土复合成功汇总通过一个简单的氧化还原反应制作的方法。样品主要是x射线的特征衍射(XRD)、光电子能谱(XPS)、扫描电子显微镜(SEM),能量色散谱(EDS),透射电子显微镜(TEM),紫外可见光谱(紫外可见)。本文的photo-catalytic活动样品被降解RhB在评估可见光照射。而g-C3N4 /硅藻土复合,汇总,g-C3N4、硅藻土、准备g-C3N4 /硅藻土2.5%汇总综合展览更好的photo-catalytic活性和稳定性。同时,不同的汇总的效果补充的photo-catalytic活动复合材料进一步分析。结果表明,g-C3N4 /汇总/硅藻土复合材料表现出最高photo-catalytic活动在增加数量的汇总2.5%。g-C3N4 /硅藻土汇总后回收93% / 2.5%三倍,显示出良好的稳定性和可重用性。性能增强也被讨论。

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