双金属片
光催化
材料科学
铋
海水淡化
卤化物
化学工程
催化作用
纳米技术
无机化学
金属
化学
冶金
有机化学
膜
工程类
生物化学
作者
Xuezhen Feng,Renji Zheng,Caiyan Gao,Wenfei Wei,Jiangguli Peng,Ranhao Wang,Songhe Yang,Wensong Zou,Xiaoyong Wu,Yongfei Ji,Hong Chen
标识
DOI:10.1038/s41467-022-29671-0
摘要
Abstract Ultrathin two-dimensional (2D) metal oxyhalides exhibit outstanding photocatalytic properties with unique electronic and interfacial structures. Compared with monometallic oxyhalides, bimetallic oxyhalides are less explored. In this work, we have developed a novel top-down wet-chemistry desalination approach to remove the alkali-halide salt layer within the complicated precursor bulk structural matrix Pb 0.6 Bi 1.4 Cs 0.6 O 2 Cl 2 , and successfully fabricate a new 2D ultrathin bimetallic oxyhalide Pb 0.6 Bi 1.4 O 2 Cl 1.4 . The unlocked larger surface area, rich bimetallic active sites, and faster carrier dynamics within Pb 0.6 Bi 1.4 O 2 Cl 1.4 layers significantly enhance the photocatalytic efficiency for atmospheric CO 2 reduction. It outperforms the corresponding parental matrix phase and other state-of-the-art bismuth-based monometallic oxyhalides photocatalysts. This work reports a top-down desalination strategy to engineering ultrathin bimetallic 2D material for photocatalytic atmospheric CO 2 reduction, which sheds light on further constructing other ultrathin 2D catalysts for environmental and energy applications from similar complicate structure matrixes.
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