Facile hydrothermal synthesis and improved photocatalytic activities of Zn2+ doped Bi2MoO6 nanosheets
Facile hydrothermal synthesis and improved photocatalytic activities of Zn2+ doped Bi2MoO6 nanosheets
复制标题
Zn2 掺杂 Bi2MoO6 纳米片的简便水热合成并提高光催化活性
DOI：
10.1039/c6ra06972j
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发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
Huang Xin-Hua
中科院分区：
文献类型：
--
作者：
Zhang Xiang-Biao;Zhang Lei;Hu Jin-Song;Huang Xin-Hua
采用简单的水热策略制备了一种新型片状Zn2+掺杂Bi2MoO6光催化剂。采用粉末x射线衍射（XRD）、x射线光电子能谱（XPS）、能量色散x射线分析（EDS）、高分辨率透射电子显微镜（HRTEM）、扫描电子显微镜（SEM）、拉曼光谱（Raman）和傅里叶变换红外光谱（FT-IR）研究了样品的形貌和化学成分。这些实验结果表明，Zn2+离子可以掺入Bi2MoO6的晶格中，取代Bi3+离子。光催化实验表明，与未掺杂的Bi2MoO6相比，Zn2+掺杂的Bi2MoO6纳米片具有优异的紫外-可见光诱导分解罗丹明B （Rhodamine B, RhB）分子的光催化能力。考察了几种清除剂对光催化效率的影响。此外，基于系统表征结果，提出了Zn2+掺杂Bi2MoO6纳米片光催化活性增强的可能机制。
A novel sheet-like Zn2+ doped Bi2MoO6 photocatalyst was fabricated through a facile hydrothermal strategy. The morphologies and chemical compositions of the samples were investigated with the help of powder X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS), energy dispersive X-ray analysis (EDS), high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), Raman and FT-IR spectra. These experimental results indicated that Zn2+ ions could be incorporated into the crystal lattices of Bi2MoO6 and substituted the Bi3+ ions. Photocatalytic experiments revealed that the as-obtained Zn2+ doped Bi2MoO6 nanosheets possessed excellent UV-visible light induced photocatalytic ability for the decomposition of Rhodamine B (RhB) molecules by comparison with undoped Bi2MoO6. The effect of some scavengers on the photocatalytic efficiency was assessed. Moreover, a possible enhancement mechanism of photocatalytic activity over Zn2+ doped Bi2MoO6 nanosheets was presented based on the systematical characterization results.