Surface structure-dependent molecular oxygen activation of BiOCl single-crystalline nanosheets.

Surface structure-dependent molecular oxygen activation of BiOCl single-crystalline nanosheets.
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DOI:
10.1021/ja4092903
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发表时间:
2013-10
影响因子:
15
通讯作者:
K. Zhao;Lizhi Zhang;Jiajun Wang;Qunxiang Li;Weiwei He;Juntai Yin
K. Zhao;Lizhi Zhang;Jiajun Wang;Qunxiang Li;Weiwei He;Juntai Yin
中科院分区:
化学1区
文献类型:
--
作者:
K. Zhao;Lizhi Zhang;Jiajun Wang;Qunxiang Li;Weiwei He;Juntai Yin

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我们证明了BiOCl单晶纳米片具有表面结构依赖的分子氧在紫外光下的活化性能。BiOCl的(001)表面倾向于通过单电子转移将O2还原为·O2(-),而(010)表面倾向于通过双电子转移形成O2(2-),这与(001)和(010)表面的表面原子暴露以及在紫外光照射下原位产生的氧空位特性有关。
We demonstrate that BiOCl single-crystalline nanosheets possess surface structure-dependent molecular oxygen activation properties under UV light. The (001) surface of BiOCl prefers to reduce O2 to ·O2(-) through one-electron transfer, while the (010) surface favors the formation of O2(2-) via two-electron transfer, which is cogoverned by the surface atom exposure and the situ generated oxygen vacancy characteristics of the (001) and (010) surfaces under UV light irradiation.