Abstract:
Hierarchical porosity and the exposure of sufficient active sites are primary features for robust
frameworks designed towards efficient adsorption, especially that of large molecules. Herein, we
have introduced a powerful strategy called linker transformation to create mesopores and Cu2O
nanoparticles in CuBTC simultaneously. Relying on this method, we constructed hierarchically
porous CuBTC with tunable pore size distribution, and the crystallinity and stability were
maintained after adding transformed linkers. Furthermore, linker transformation promoted the
formation of Cu2O nanoparticles immobilized in the open framework of CuBTC, which
exhibited more active sites for sulfur compounds. The hierarchical porous structure enabled easy
diffusion of large-sized sulfur compounds, while the small Cu2O nanoparticles were highly
dispersed, which led to highly enhanced desulfurization adsorption performance. The strategy
presented here may provide new insights for designing more abundant MOF structures and
further expanding their application range.
Description:
Journal of Materials Chemistry A, 2020, 8,
DOI: https://doi.org/10.1039/C9TA13505G
Download Link: https://pubs.rsc.org/en/content/articlelanding/2020/ta/c9ta13505g