Abstract: A case of porous MOFs was synthesized by microwave heating method using 1,3, 5-trimeric acid (H3btc) and metal Zn(NO3)2·6H2O. The compounds were characterized by X-ray diffractometer, and their thermal stability and adsorption properties were studied. The experimental results show that compound 1 has a penetrating three-dimensional channel with 55.8% pore volume and permanent porosity. It is found that the adsorption effect of CO2 at low temperature is much higher than that of N2. The maximum adsorption capacity is 251.4 cm3·g-1, and the specific surface area of BET is 1124.1 m2·g-1. In addition, compound 1 can effectively selectively adsorb methyl blue dyes in aqueous solutions of mixed dyes. Electrostatic interaction plays a prominent role in dye adsorption. It has high adsorption aging and high absorption rate, and still has high effective removal ability of MB molecules in three cycles. It can achieve rapid and efficient adsorption behavior for low-concentration gaseous iodine, and its maximum absorption capacity can reach 0.39271 g·g-1.

Key words: Metal-organic Framework, Adsorption Properties, Dye；Iodine capture