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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Synthesis and visible-light photocatalytic activity of NdVO_4 nanowires
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Synthesis and visible-light photocatalytic activity of NdVO_4 nanowires

机译：NdVO_4纳米线的合成及可见光催化活性

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摘要

NdVO_4 nanowires are synthesized by a simple composite molten salt method. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction spectrum, energy dispersive spectrometry and UV-vis spectrum are used to characterize the structure, morphology and composition of the sample. The results show that the product is of tetragonal phase NdVO_4 nanowires which are connected together in bases, rooted in one center, with typical diameters of 100nm and lengths up to 3 μm. The UV-vis spectrum shows that NdVO_4 nanowires have four strong absorption peaks from the UV to near infrared region. The photocatalytic degradation of Rhodamine B (RhB) and methyl orange under visible light irradiation using the NdVO_4 nanowires are also investigated. Excellent catalytic degradation activity of RhB observed suggests possible applications for organic pollutant treatment under visible light irradiation. The electron density states of the NdVO_4 were calculated with the Vienna ab initio simulation package. The results of these simulations were used to form a description of the observed light absorption and photodegradation properties of NdVO_4 nanowires.
机译：NdVO_4纳米线是通过简单的复合熔盐方法合成的。扫描电子显微镜，透射电子显微镜，X射线衍射谱，能量色散谱和紫外可见光谱用于表征样品的结构，形态和组成。结果表明，该产物是四方相NdVO_4纳米线，它们在基部连接在一起，植根于一个中心，典型直径为100nm，长度最大为3μm。紫外可见光谱表明，NdVO_4纳米线从紫外到近红外区域有四个强吸收峰。还研究了使用NdVO_4纳米线在可见光照射下对若丹明B（RhB）和甲基橙的光催化降解。观察到的出色的RhB催化降解活性表明在可见光照射下有机污染物处理的可能应用。 NdVO_4的电子密度状态是使用Vienna从头算模拟程序计算的。这些模拟的结果用于形成对NdVO_4纳米线的光吸收和光降解特性的描述。

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