Si Hua-Yan, Mao Chen-Jing, Xie Ya-Meng, Sun Xiu-Guo, Zhao Jin-Jin, Zhou Na, Wang Jian-Qiang, Feng Wen-Jie, Li Yan-Ting
School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China.
Mechanics Engineering Department, Shijiazhuang Tiedao University, Shijiazhuang 050043, China.
Dalton Trans. 2016 Dec 20;46(1):200-206. doi: 10.1039/c6dt03683j.
P-N depleted bulk BiOBr/α-FeO heterojunction (DBH) nanostructures with the growth of (001) BiOBr facets were prepared via a simple hydrothermal method. BiOBr possesses an average thickness of around 50 nm and shows preferential exposure of the (001) facets. α-FeO nanoparticles, with an average diameter of 5 nm, are attached on the surface of BiOBr as 20-50 nm clusters with an intimate contact interface. Such DBH nanostructures show high hydrogen evolution, and 193 mmol g of H is produced with DBH containing 1 wt% Pt, which is 6.3 times higher than that of α-FeO nanoparticles. The structural features of DBH are considered to be important to obtain attractive properties in photocatalytic water splitting.
通过一种简单的水热法制备了具有(001) BiOBr晶面生长的P-N耗尽体相BiOBr/α-FeO异质结(DBH)纳米结构。BiOBr的平均厚度约为50 nm，并表现出(001)晶面的优先暴露。平均直径为5 nm的α-FeO纳米颗粒以20-50 nm的团簇形式附着在BiOBr表面，具有紧密的接触界面。这种DBH纳米结构表现出高析氢性能，含1 wt% Pt的DBH产生193 mmol g的H，这比α-FeO纳米颗粒高6.3倍。DBH的结构特征被认为对于在光催化水分解中获得有吸引力的性能很重要。
