Highly symmetrical, 24-faceted, concave BiVO4 polyhedron bounded by multiple high-index facets for prominent photocatalytic O2 evolution under visible light
Highly symmetrical, 24-faceted, concave BiVO4 polyhedron bounded by multiple high-index facets for prominent photocatalytic O2 evolution under visible light
复制标题
高度对称、24 面、凹 BiVO4 多面体，由多个高折射率面包围，可在可见光下显着光催化 O-2 演化
DOI：
10.1039/c9cc01366k
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发表时间：
2019-04-28
影响因子：
4.9
通讯作者：
Zou, Zhigang
中科院分区：
文献类型：
--
作者：
Hu, Jianqiang;He, Huichao;Zou, Zhigang
一个高度对称的，24面，凹BiVO 4多面体的制造，由多个高指数{012}，{210}，{115}，和{511}面，表现出令人印象深刻的光催化O-2的水氧化在没有任何助催化剂的情况下，超过两个数量级高于散装材料。相应的表观量子产率（AQY）的O-2的演变，测量高达30.7%，在420 nm的光照射下，一个新的记录AQY BiVO 4。高折射率晶面不仅在能量上有利于水的解离，而且还表现出显着降低析氧反应的过电位（0.7-1.0 V）。
A highly symmetrical, 24-faceted, concave BiVO4 polyhedron was fabricated, bounded by multiple high-index {012}, {210}, {115}, and {511} facets, exhibiting impressive photocatalytic O-2 evolution for water oxidation in the absence of any cocatalysts, more than two orders of magnitude higher than that of the bulk materials. The corresponding apparent quantum yield (AQY) of O-2 evolution was measured as high as 30.7% under 420 nm light irradiation, a new record AQY for BiVO4. The high-index facets are not only energetically favorable for water dissociation, but also exhibit an obvious reduction in the overpotential (0.7-1.0 V) for the oxygen evolution reaction.