采用水热法合成了具有核-壳结构的金属-有机骨架复合材料Fe₃O₄@Sn-MOF。通过XRD、TEM、BET、FT-IR和DRS等测试手段对复合材料进行了表征。以酸性大红3R （AR3R）为模拟废水，在氙灯光源下对Fe₃O₄@Sn-MOF进行光催化活性评估。研究了Fe₃O₄质量和催化剂质量浓度对光催化性能的影响。结果表明，与其他样品相比，Fe₃O₄-3@Sn-MOF对AR3R的降解效果最好。当催化剂质量浓度为6.7 g/L时，在30 min内光催化降解AR3R可达100%。经5次光催化循环实验后，Fe₃O₄@Sn-MOF仍保持良好的稳定性和活性。

Fe₃O₄@Sn-MOF, a metal-organic framework composite with core-shell structure, is successfully prepared via hydrothermal synthesis method, and is characterized by means of XRD, TEM, BET, FT-IR and DRS.The photocatalytic activity of the composite is evaluated through photocatalytic degradation of Acid Red 3R (AR3R) dyes under xenon lamp light source.The effects of the mass of Fe₃O₄ and the mass concentration of catalyst on photocatalytic performance are studied.It is shown that Fe₃O₄-3@Sn-MOF sample has the best degradation effect to AR3R compared with other samples.The degradation rate of AR3R reaches 100% within 30 min when the mass concentration of Fe₃O₄-3@Sn-MOF is 6.7 g·L^-1.Fe₃O₄@Sn-MOF maintains good stability and activity after five cycles of photodegradation to AR3R.

岳琳(1980-),女,博士,副教授,从事水污染控制工程方向的研究,yuelintj@126.com