Effect of aspect ratio and surface defects on the photocatalytic activity of ZnO nanorods.

Effect of aspect ratio and surface defects on the photocatalytic activity of ZnO nanorods.
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长径比和表面缺陷对ZnO纳米棒光催化活性的影响

DOI:
10.1038/srep04596
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发表时间:
2014-04-04
期刊:
影响因子:
4.6
通讯作者:
Liu R
Liu R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhang X;Qin J;Xue Y;Yu P;Zhang B;Wang L;Liu R

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除二氧化钛外,氧化锌具有活性高、环境友好、成本低等优点,被认为是一种很有前途的水、空气净化消毒和危险废物修复材料。然而,它们较差的可见光利用率极大地限制了它们的实际应用。在这里,我们展示了用机械辅助热分解方法制备不同长径比的表面缺陷的氧化锌纳米棒。实验表明,具有较大长径比和表面缺陷的氧化锌纳米棒表现出明显较高的光催化性能。
ZnO, aside from TiO2, has been considered as a promising material for purification and disinfection of water and air and remediation of hazardous waste, owing to its high activity, environment-friendly feature and lower cost. However, their poor visible light utilization greatly limited their practical applications. Herein, we demonstrate the fabrication of different aspect ratios of the ZnO nanorods with surface defects by mechanical-assisted thermal decomposition method. The experiments revealed that ZnO nanorods with higher aspect ratio and surface defects show significantly higher photocatalytic performances.
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