核壳结构Fe_(3)O_(4)@Sn-MOF的制备及其光催化性能研究  

Preparation of core-shell Fe_(3)O_(4)@Sn-MOF and study on its photocatalytic performance

作　　者：岳琳[1] 曹云梦 张迎 王涛 罗晓[1] 廉静[1] 李再兴[1] YUE Lin;CAO Yun-meng;ZHANG Ying;WANG Tao;LUO Xiao;LIAN Jing;LI Zai-xing(Pollution Prevention Biotechnology Laboratory of Hebei Province,School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Green Building Division,Hubei Provincial Academy of Building Research and Design Co.,Ltd.,Wuhan 430000,China;Department of Ecology and Environment of Hebei Province,Shijiazhuang 050051,China)

机构地区：[1]河北科技大学环境科学与工程学院,河北省污染防治生物技术实验室,河北石家庄050018 [2]湖北省建筑科学研究设计院绿建事业部,湖北武汉430000 [3]河北省生态环境厅,河北石家庄050051

出　　处：《现代化工》2021年第12期125-129,共5页Modern Chemical Industry

基　　金：河北省重点研发计划项目(20373602D)。

摘　　要：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Fe_(3)O_(4)@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Fe_(3)O_(4)@Sn-MOF进行光催化活性评估。研究了Fe_(3)O_(4)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,Fe_(3)O_(4)-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,Fe_(3)O_(4)@Sn-MOF仍保持良好的稳定性和活性。Fe_(3)O_(4)@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 3 R(AR3 R)dyes under xenon lamp light source.The effects of the mass of Fe_(3)O_(4)and the mass concentration of catalyst on photocatalytic performance are studied.It is shown that Fe_(3)O_(4)-3@Sn-MOF sample has the best degradation effect to AR3 R compared with other samples.The degradation rate of AR3 R reaches 100% within 30 min when the mass concentration of Fe_(3)O_(4)-3@Sn-MOF is 6.7 g·L^(-1).Fe_(3)O_(4)@Sn-MOF maintains good stability and activity after five cycles of photodegradation to AR3 R.

关 键 词：光催化 水热法 MOF 复合材料 

分 类 号：O644.1[理学—物理化学] O643.3[理学—化学]