Ni_(2)P/COF异质结在可见光驱动下高效光催化析氢的研究

Ni_(2)P/COF heterostructure for efficient hydrogen evolution under visible-light-driver

实现有效光催化太阳能转换的关键是高效的载流子分离。尽管某些共价有机框架(COFs)具有可见光吸收,但载流子复合速率过快,严重限制了光催化效率。采用简单的水热和磷化法构建了负载Ni_(2)P的共价有机框架(COFs)光催化体系,Ni_(2)P/TpPa-2-COF复合材料显著提高了光催化性能,产氢速率达到2.91 mmol·g^(-1)·h^(-1),是单独COF的11倍。该结构是新型的Ni_(2)P异质结,用于高效的人工太阳能转换。

Efficient separation of charge carrier is widely recognized as crucial for effective photocatalytic solar energy conversion.Although certain covalent organic frameworks(COFs)exhibit visible light absorption,rapid carrier recombination often severely restricts their photocatalytic efficiency.Herein,Ni_(2)P loaded covalent organic frameworks(COFs)photocatalytic systems were constructed by simple hydrothermal and phosphating.This composite significantly enhanced the photocatalytic performance,resulting in an optimized H_(2) evolution rate of 2.91 mmol·g^(-1)·h^(-1),which is 11 times higher than that for the pristine COF.This research developed a novel Ni_(2)P heterojunction loaded COF for efficient artificial solar energy conversion.