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采用溶剂热法,用H_3PMo_(12)O_(40)修饰三维金属有机框架材料Zn(BDC)(Bipy)_(0.5)构筑一例复合材料H_3PMo_(12)O_(40)/Zn(BDC)(Bipy)_(0.5),利用IR、XRD、TG、BET、SEM对其结构进行分析,进而研究其对亚甲基蓝的吸附性能.研究结果表明,H_3PMo_(12)O_(40)/Zn(BDC)(Bipy)_(0.5)对亚甲基蓝有很好的吸附性能,在20℃和溶液p H=2的条件下,吸附量达478.5 mg·g~(-1).H_3PMo_(12)O_(40)/Zn(BDC)(Bipy)_(0.5)对亚甲基蓝的吸附符合Langmuir等温吸附型和拟二级动力学方程,吸附过程是一个自发和放热过程.此外,能从混合染料中快速吸附出亚甲基蓝.
A sample of composite H_3PMo_ (12) O_ (40) / Zn (BDC) (Bipy) _ (0.5) was prepared by the solvothermal method using H_3PMo_ (12) O_ (40) ) _ (0.5) were synthesized and their structures were analyzed by IR, XRD, TG, BET and SEM, and their adsorption properties on methylene blue were also studied. The results showed that the adsorption of methylene blue on H_3PMo_ (12) O_ ) _ (0.5) has good adsorption capacity for methylene blue, and the adsorption capacity reaches 478.5 mg · g -1 at 20 ℃ and p H = 2.H_3PMo_ (12) O_ (40) / Zn (BDC) (Bipy) _ (0.5) The adsorption of methylene blue conforms to the Langmuir isothermal adsorption and quasi-second order kinetic equation, and the adsorption process is a spontaneous and exothermic process. In addition, methylene blue can be quickly adsorbed from the mixed dye.