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,Cai‐Yan 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
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 Pb0.6Bi1.4Cs0.6O2Cl2, and successfully fabricate a new 2D ultrathin bimetallic oxyhalide Pb0.6Bi1.4O2Cl1.4. The unlocked larger surface area, rich bimetallic active sites, and faster carrier dynamics within Pb0.6Bi1.4O2Cl1.4 layers significantly enhance the photocatalytic efficiency for atmospheric CO2 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 CO2 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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