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首页> 外文期刊>RSC Advances >Silicate silver/flower-like magnalium hydroxide composites for enhanced visible light photodegradation activities
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Silicate silver/flower-like magnalium hydroxide composites for enhanced visible light photodegradation activities

机译：硅酸盐银/花状氢氧化镁复合材料，可增强可见光的光降解活性

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Flower-like magnalium layered composites (MgAl-LDH) were first fabricated by a hydrothermal method, and a series of AgSiO _( x ) /MgAl-LDH composites with different mole ratios was successfully prepared by loading AgSiO _( x ) on the MgAl-LDH surface. The photocatalytic activities of the composites for the degradation of methylene blue (MB) were investigated under visible light irradiation (xenon lamp). The prepared AgSiO _( x ) /MgAl-LDH composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy, thermogravimetric analysis (TG), and X-ray photoelectron spectroscopy (XPS). The results revealed that AgSiO _( x ) /MgAl-LDH (5?:?1) displayed a photocatalytic degradation efficiency of 99.7% in 30 min for MB. The photocatalytic degradation rate was higher than that of pure AgSiO _( x ) .
机译：首先通过水热法制备了花状的镁层状复合材料（MgAl-LDH），并通过将AgSiO _（x）负载在MgAl上成功制备了一系列摩尔比不同的AgSiO _（x）/ MgAl-LDH复合材料。 -LDH表面。在可见光照射下（氙灯）研究了复合材料对亚甲基蓝（MB）降解的光催化活性。用X射线衍射（XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM），紫外可见漫反射光谱，热重分析（TG）对制备的AgSiO_（x）/ MgAl-LDH复合材料进行表征。和X射线光电子能谱（XPS）。结果表明，AgSiO_（x）/ MgAl-LDH（5≤：≤1）在30分钟内对MB显示出99.7％的光催化降解效率。光催化降解速率高于纯AgSiO _（x）。

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