新型MOFs材料的制备与表征及处理染料废水的研究

Preparation and characterization of a new MOFs and application in dye wastewater treatment

在溶剂热条件下,以硅中心四齿配体四(4-羧基苯基)硅烷和1-(四唑-5-基)-4-(三唑-1-基)-苯2种有机配体,成功制得新型的金属有机骨架结构材料(MOFs),为含有钴的金属有机骨架结构[Co3O(H2O)3L(ttb)]·3H2O(MOF-Co)],并对其进行了测试。研究结果表明,制得的MOF-Co结构为纯相,具有良好的热稳定性、化学稳定性和大的孔道,在亚甲基蓝溶液浓度为12mg/L,MOF-Co用量为10mg,吸附6h条件下,MOF-Co对亚甲基蓝的吸附率最高达到62.3%。

Under the solvothermal conditon,a tetrahedral silicon-centred linker with space-directed was employed to successfully construct one novel MOFs,namely,[Co3 O(H2 O)3 L(ttb)]·3 H2 O(MOF-Co).It was structurally confirmed by test.The adsorption ability of dye molecules in dye aqueous solution was also tested.The results showed that the structure of MOF-Co was pure phase and had good thermal stability,chemical stability and large pore channels.Under the conditions of 12 mg/L of methylene blue solution,10 mg of MOF-Co and 6 h of adsorption,the maximum adsorption rate of methylene blue was 62.3%.