金属有机骨架材料对废水中铀的吸附研究综述

A review of adsorption of uranium in waste water by metal-organic frameworks

归纳了近几年来金属有机骨架材料(MOFs)对水中铀的吸附效果,介绍了溶液pH值、温度、离子强度、反应时间、初始铀浓度和吸附剂用量等因素对MOFs吸附铀的影响,总结了MOFs对水中铀的吸附机理以及选择性和再生性能,并对MOFs应用于铀废水处理中的前景和发展方向做了展望。指出研究方向:开发高效、环境友好的水相合成和无溶剂合成MOFs,及开展机械化学、微波、电化学和喷雾干燥等处理方法对MOFs进行规模化合成的研究。

The adsorption effect of MOFs on uranium in water was summarized in recent years.The effects of pH value,temperature,ionic strength,reaction time,initial uranium concentration and adsorbent dosage on the adsorption of uranium by MOFs are introduced.The mechanism and selectivity of MOFs adsorption to uranium in water and the regeneration properties of adsorbed MOFs are summarized.In addition,the prospects and development directions of MOFs applied to the treatment of uranium-containing wastewater are prospected.It is pointed out the research direction:it is important to develop the highly efficient,environmentally friendly aqueous phase synthesis and solvent-free synthesis of MOFs.Finally,more studies will be required on large-scale synthesis of MOFs by means of mechanical chemistry,microwave,electrochemistry and spray drying.