光电流
异质结
三元运算
表面等离子共振
等离子体子
纳米颗粒
材料科学
分解水
光电子学
电子转移
化学
纳米技术
光催化
光化学
生物化学
催化作用
程序设计语言
计算机科学
作者
Miao Zhou,Zhengang Guo,Qinggong Song,Xifei Li,Zhifeng Liu
标识
DOI:10.1016/j.cej.2019.03.193
摘要
We first design and fabricate a highly efficient integrated CuWO4/Ag/BiOI device for photoelctrochemical water splitting. In this system, the formation of a p-n heterojunction between CuWO4/BiOI facilitates the carriers separation and transportation through built-in electrical field. Meanwhile, the Ag nanoparticles (NPs) own surface plasmon resonance (SPR), which increase the photoelectrochemical activity by transfer energy to metal oxides via hot electrons transfer (HET) and plasmon resonant energy transfer (PRET). As expected, this novel ternary CuWO4/Ag/BiOI structure reveals a dramatically promoted photocurrent of 2.10 mA/cm2 at 1.23 V vs. RHE in photoelctrochemical water splitting, which is higher than that of bare CuWO4. Hence, this work may provide an avenue guidelines for p-n heterojunction and plasmon synergistically enhance photoelctrochemical water splitting.
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