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Synthesis of immobilized nanostructured ZnO grown on glass and its photocatalytic activity for cyanide degradation

机译：在玻璃上生长的固定化纳米结构ZnO的合成及其对氰化物降解的光催化活性

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Nanostructured ZnO has been synthesized by using two simple steps, i.e. ultrasonic spray pyrolysis (USP) and chemical bath deposition (CBD) methods on glass substrates. The crystal structure, morphology, photoluminescence (PL) emission, and photocatalytic activity for cyanide degradation were studied. From the X-ray diffraction (XRD) examination, it was observed that the ZnO had the hexagonal wurtzite structure with the preferred orientation of (100). The field emission scanning electron microscopy (FESEM) image displayed that the ZnO had grass-like and bush-like nanostructures. The PL spectrum exhibited the near band-edge emission (NBE) peak at ～380 nm. The photocatalytic activity of the nanostructured ZnO for cyanide degradation in aqueous solution was evaluated under warm-white lamp (color temperature of 2700 K) and cool-daylight lamp (color temperature of 6500 K) irradiations, resulting enhanced cyanide degradation rates in presence of the nanostructured ZnO.
机译：通过使用两种简单的步骤，即在玻璃基板上的超声波喷雾热解（USP）和化学浴沉积（CBD）方法合成纳米结构ZnO。研究了晶体结构，形态，光致发光（PL）发射和用于氰化物降解的光催化活性。从X射线衍射（XRD）检查中，观察到ZnO具有六边形紫立岩结构，具有（100）的优选取向。现场发射扫描电子显微镜（FeSEM）图像显示，ZnO具有草状和衬套的纳米结构。 PL光谱在〜380nm处表现出近带边缘发射（NBE）峰。在温度下灯（2700 k）和凉爽的日光灯（色温为6500 k）照射，评价粉氰化ZnO的光催化活性，并在凉爽的日光灯（色温为6500 k）照射中，导致存在增强的氰化物降解率纳米结构ZnO。

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