Abstract
Due to their large surface areas, tunable functionality, and diversiform building blocks, metal–organic frameworks (MOFs) have arisen great attention in the last few decades. Nevertheless, most of MOFs show poor water stability, which seriously hinders their further applications. In this study, through the immobilization of polyoxometalate in a water unstable cage-based MOF material {[(Cu4Cl)(CPT)4(H2O)4]·3NO3·5NMP·3.5H2O} (1), in which HCPT = 4-(4-carboxyphenyl)-1,2,4-triazole and NMP = N-methyl pyrrolidone), via a simple one-pot solvothermal reaction, a new hybrid material {[(Cu4Cl)(CPT)4]·(HSiW12O40)·31H2O} (2) can be fabricated. The hybrid material 2 shows a nearly identical network structure to that of 1 but possesses much higher water and chemical stability. Moreover, the visible light dye degradation performance for 2 in water has been illustrated.
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