School of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China.
ACS Appl Mater Interfaces. 2017 Apr 19;9(15):13223-13230. doi: 10.1021/acsami.7b01840. Epub 2017 Apr 6.
In this paper, CuI, as a typical hole-transport channel, was used to construct a high-performance visible-light-driven CuI/BiOI heterostructure for photoelectrocatalytic applications. The heterostructure combines the broad visible absorption of BiOI and high hole mobility of CuI. Compared to pure BiOI, the CuI/BiOI heterostructure exhibited distinctly enhanced photoelectrocatalytic performance for the oxidation of methanol and organic pollutants under visible-light irradiation. The photogenerated electron-hole pairs of the excited BiOI can be separated efficiently through CuI, in which the CuI acts as a superior hole-transport channel to improve photoelectrocatalytic oxidization of methanol and organic pollutants. The outstanding photoelectrocatalytic activity shows that the p-type CuI works as a promising hole-transport channel to improve the photocatalytic performance of traditional semiconductors.
本文以典型的空穴传输通道 CuI 为构筑单元，构建了一种高效的可见光驱动的 CuI/BiOI 异质结构用于光电催化应用。该异质结构结合了 BiOI 的宽可见光吸收和 CuI 的高空穴迁移率。与纯 BiOI 相比，CuI/BiOI 异质结构在可见光照射下对甲醇和有机污染物的氧化表现出明显增强的光电催化性能。受激 BiOI 的光生电子-空穴对可以通过 CuI 有效分离，其中 CuI 作为一种优异的空穴传输通道，提高了甲醇和有机污染物的光电催化氧化性能。优异的光电催化活性表明，p 型 CuI 作为一种有前途的空穴传输通道，可以提高传统半导体的光催化性能。
