Synthesis and photocatalytic activity of BiOBr nanosheets with tunable exposed {0 1 0} facets
Synthesis and photocatalytic activity of BiOBr nanosheets with tunable exposed {0 1 0} facets
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DOI：
10.1016/j.apcatb.2016.02.018
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发表时间：
2016-07
影响因子：
22.1
通讯作者：
X. Xiong;Liyong Ding;Qingqian Wang;Yongxiu Li;Q. Jiang;Juncheng Hu
中科院分区：
文献类型：
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作者：
X. Xiong;Liyong Ding;Qingqian Wang;Yongxiu Li;Q. Jiang;Juncheng Hu
合成了一系列（0 1 0）晶面暴露比例可调的BiOBr纳米片。在合成过程中，使用不同的正醇，这不仅促进了（0 1 0）面的暴露，而且在很大范围内调节这些BiOBr纳米片的尺寸和厚度。此外，这些纳米片对水杨酸（SA）和罗丹明B（RhB）具有高效的光降解活性。通过比较发现，以正己醇为溶剂制备的样品比以正丁醇和甲醇为溶剂制备的样品具有更高的光催化活性。这种优异的光催化活性归因于薄层厚度和（0 1 0）面的暴露，这有利于光生电子和空穴的分离。
A series of BiOBr nanosheets with tunable exposing proportion of (0 1 0) facets had been synthesized. In the synthesis process, differentn-alcohols are used, which not only promote the exposure of (0 1 0) facets, but also modulate the size and thickness of these BiOBr nanosheets in a wide range. Furthermore, these nanosheets showed an efficient photodegradation activity for salicylic acid (SA) and Rhodamine B (RhB). By comparison, the sample prepared inn-hexanol possessed the highest photocatalytic activity than those synthesized inn-butanol and methanol, respectively. This excellent photocatalytic activity was attributed to the thin lamellar thickness and the exposure of (0 1 0) facets, which facilitated the separation of photoinduced electrons and holes.