【摘要】 金属有机骨架材料（MOFs）在转轮除湿空调系统中具有广阔的应用前景。本研究选择MIL-101（Cr）、HKUST-1、MOF-808和UIO-66共4种MOFs材料，采用溶剂热法和机械化学法制备MOFs试样，对研制试样开展X射线衍射（XRD）、扫描电子显微镜（SEM）和热重（TG）表征分析，并进行-196℃氮吸/脱附平衡数据测试。在25℃、P/P₀=0～0.9条件下，对制备试样开展水蒸气吸附等温线及水稳定性测试。研究结果表明，在制备的试样中，MIL-101（Cr）的比表面积和比微孔容积最大，其水蒸气的吸附达到1.51 g/g,是商业除湿材料的5.8倍；在十次水蒸气吸脱附循环测试中，MIL-101（Cr）的水蒸气的吸附容量下降最小，仅为3.8%,宜作为船舶转轮除湿空调系统的除湿干燥剂。更多还原

【Abstract】 Metal organic frameworks（MOFs） have promising application prospects on desiccant rotary air conditioning systems. Four kinds of MOFs, including MIL-101（Cr）, HKUST-1, MOF-808 and UIO-66, were firstly prepared solvothermally and mechanochemically. Analyses were then conducted on the synthesized samples by X-ray diffractions（XRD）, scanning electron microscopies（SEM）, thermogravimetric（TG） curves as well as the adsorption data of nitrogen at-196 ℃. Measurements of the adsorption isotherms of water vapor and the hydro-stability of the samples were finally performed at 25 ℃ within the relative pressure range P/P₀=0-0.9. The results show that, among as-prepared samples, sample MIL-101（Cr） had the highest specific surface area and the largest micro-pore volume, as well as the largest adsorption amount of water vapor about 1.51 g/g, which is 5.8 times that of the commercial desiccant material. Meanwhile, the relative decrement in adsorption capacity on this MIL-101（Cr） sample within ten adsorption-desorption cycles of the water vapor is 3.8%, which is the smallest among the samples concerned. Selecting MIL-101（Cr） as a desiccant material for a rotary desiccant system is therefore preferable.更多还原