Surface modification of PCC filled cellulose paper by MOF-5 (Zn3(BDC)2) metal-organic frameworks for use as soft gas adsorption composite materials

In this paper, composite materials made of cellulose paper and MOF-5 (Zn-3(BDC)(2)) Metal organic frameworks (paper@MOF-5) materials, were prepared by an in situ synthesis method using precipitated calcium carbonate (PCC) filled cellulose papers. PCC fillers in the cellulose paper led to decreased inter-fiber bonds, thus facilitating the formation of small-sized MOF-5 crystals. The resultant cellulose paper@MOF-5 composites exhibited zeolite-like frameworks with high specific surface areas. The composite materials were characterized by XRD, ATR-FTIR, SEM and nitrogen adsorption analysis. The results supported the conclusion that the prepared cellulose paper@MOF-5 composite materials have great potential in gas (N-2, CH4, H-2, CO2, etc.) adsorption.