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首页> 外文期刊>Chemical Science International Journal >Room Temperature Synthesis of Nanostructured ZnO: Active Visible Photocatalyst in the Degradation of Methylene Blue
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Room Temperature Synthesis of Nanostructured ZnO: Active Visible Photocatalyst in the Degradation of Methylene Blue

机译：纳米结构ZnO的室温合成：活性可见光催化剂在亚甲基蓝色降解中

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Nanostructured ZnO was prepared using a facile solution-phase method at room temperature without need to calcination. Oxidation of zinc sulfate by sodium hypochlorite in the presence of polyethylene glycol (PEG) and sodium hydroxide (NaOH) gave pure nanostructured zinc oxide (ZnO-NPs). The structure and physicochemical properties of the material were determined by X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (IR), Energy Dispersive X-ray Spectroscopy (EDS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), UV–Vis diffuse reflectance and their optical Properties. ZnO particles were successfully distributed in two-dimensional sheet with a nanometric thickness and a random distribution. The activity was evaluated for photocatalytic degradation of methylene blue (MB) by a study of experimental conditions such as the effect of the mass of the catalyst, the effect of the initial concentration of the dye and the effect of the volume of the oxidizing agent. The kinetics of the reaction follow a pseudo-first order.
机译：在室温下使用容易溶液相法制备纳米结构ZnO，而不需要煅烧。在聚乙二醇（PEG）和氢氧化钠（NaOH）存在下，通过次氯酸钠氧化硫酸锌（NaOH）氧化纯纳米结构氧化锌（ZnO-NPS）。材料的结构和物理化学特性通过X射线粉末衍射（XRD），傅里叶变换红外光谱（IR），能量分散X射线光谱（EDS），扫描电子显微镜（SEM），透射电子显微镜（ TEM），UV-VI扩散反射和光学性质。 ZnO颗粒成功地分布在具有纳米厚度和随机分布的二维片中。通过研究诸如催化剂质量的效果的实验条件，评估亚甲基蓝（MB）的光催化降解亚甲基蓝（MB）的活性，染料初始浓度的效果及氧化剂体积的作用。反应的动力学遵循伪第一顺序。

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