Construction of three-dimensional polymeric d-histidine based metal-organic framework (MOF) for selective sorption of CO2 and copper ion sensing applications

This report investigates infinite three-dimensional d-histidine based bio-metal organic framework single crystal (DHTZn) for versatile applications. Sorption analysis at different temperatures indicates DHTZn crystal has excellent adsorption capacity for CO2 (462 cm3 g−1 at 273 K and 379 cm3 g−1 at 298 K) when compared to N2 (230 cm3 g−1 at 273 K and 188 cm3 g−1 at 298 K). The DHTZn was effectively sensing Cu2+ ions, KSV value and detection limits are 4.24 × 105 M−1 and 0.0947 × 10−7 M respectively. Based on the above outcomes, DHTZn crystal might be useful for selective sorption and separation of CO2 with Cu2+ ion sensing.