Antibiotic-inspired zinc oxide with morphology-dependent photocatalytic activity
Antibiotic-inspired zinc oxide with morphology-dependent photocatalytic activity
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DOI：
10.1139/v11-023
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发表时间：
2011-05
影响因子：
1.1
通讯作者：
GaoShuyan;JiaXiaoxia;LiZhengdao;ChenYanli;JiangKai
中科院分区：
文献类型：
--
作者：
GaoShuyan;JiaXiaoxia;LiZhengdao;ChenYanli;JiangKai
通过仿生方法合成了不同形貌（六面体、锥花状、菜花状和纳米棒）的 ZnO 材料，该方法对于 ZnO 的控制合成来说是有效且简便的。醋酸锌和氨用作生长前体，氨苄青霉素用作形态引导剂。 X射线衍射（XRD）数据表明，所获得的不同形貌的ZnO表现出不同的晶体生长习性。以 Orange G 的光降解为模型反应来测试 ZnO 样品的光催化活性。不同的形态对Orange G的降解表现出不同的活性。与其他样品相比，菜花状 ZnO 样品表现出最好的光催化性能。初步讨论了形貌导向剂和pH值对ZnO样品形貌的影响以及形貌对光催化活性的影响。
ZnO materials with different morphologies (hexahedron, coneflowerlike, cauliflowerlike, and nanorods) have been synthesized via a bioinspired method, which is effective and facile for the controlled synthesis of ZnO. Zinc acetate and ammonia were used as growth precursors, and ampicillin was used as the morphology-directing agent. X-ray diffraction (XRD) data showed that the obtained ZnO with different morphologies displayed different crystal growth habits. Photodegradation of Orange G was used as a model reaction to test the photocatalytic activity of ZnO samples. Different morphologies exhibited different activities to Orange G degradation. The cauliflowerlike ZnO sample showed the best photocatalytic performance compared with the others. The influence of the morphology-directing agent and pH on the morphology of ZnO samples and the effect of the morphologies on the photocatalytic activity are tentatively discussed.