UiO-66/GO纳米复合材料的制备及吸附性能  

Synthesis and adsorption property of UiO-66/GO nanocomposites

作　　者：冯胜 王润柏 张致慧[2] 冯珊珊 程萍 刘曙光 FENG Sheng;WANG Run-bai;ZHANG Zhi-hui;FENG Shan-shan;CHENG Ping;LIU Shu-guang(School of Environmental and Safety Engineering,Changzhou University,Changzhou 213164,Jiangsu,China;Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Changzhou University,Changzhou 213164,Jiangsu,China)

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164 [2]常州大学江苏省先进催化材料与技术重点实验室,江苏常州213164

出　　处：《精细化工》2018年第11期1942-1947,1967,共7页Fine Chemicals

基　　金：国家自然科学基金项目(41371446,41271498)~~

摘　　要：以四氯化锆（ZrCl4）、对苯二甲酸（H2BDC）和氧化石墨烯（GO）为原料,采用溶剂热法合成了一种纳米复合材料UiO-66/氧化石墨烯（UiO-66/GO）。采用SEM、TEM、XRD、FTIR和N2吸附-解吸对UiO-66/GO进行了测试和表征。结果显示：UiO-66均匀生长在GO片上形成一种2D负载结构;GO的添加不影响UiO-66的晶型;当GO的质量分数为2%时,UiO-66/GO-2复合材料具有最高的比表面积（738 m^2/g）。UiO-66/GO-2的协同效应使其对刚果红（CR）的去除率远高于UiO-66和GO,其Langmuir模型的理论最大吸附量为561.79 mg/g,分别是相同条件下UiO-66和GO对CR吸附量的2.8倍和7.1倍。Zirconium tetrachloride（ZrCl4）, terephthalic acid（H2BDC） and graphene oxide（GO） were used as raw materials to synthesize UiO-66/GO nanocomposites by solvothermal method. The obtained UiO-66/GO nanocomposites were characterized by SEM, TEM, XRD, FTIR and N2 adsorption-desorption isotherm analysis. The results showed that UiO-66 grew uniformly on the GO sheet to form a 2D loaded structure. The addition of GO did not affect the crystal structure of UiO-66. When the mass fraction of GO was 2%, the composite UiO-66/GO-2 had the highest specific surface area of 738 m^2/g. The synergistic effect of UiO-66/GO-2 made the removal rate of Congo red（CR） much higher than that of UiO-66 and GO. The composite UiO-66/GO-2 had a CR adsorption capacity was 561.79 mg/g at 318 K, which was 2.8 and 7.1 times that of UiO-66 and GO under the same conditions, respectively.

关 键 词：氧化石墨烯 金属有机框架 UiO-66/GO 刚果红(CR) 吸附 水处理技术 

分 类 号：X592[环境科学与工程—环境工程]