Preparation of zeolitic imidazolate framework-8 /graphene oxide composites with enhanced VOCs adsorption capacity
Preparation of zeolitic imidazolate framework-8 /graphene oxide composites with enhanced VOCs adsorption capacity
复制标题
增强VOCs吸附能力的咪唑骨架8沸石/氧化石墨烯复合材料的制备
DOI：
10.1016/j.micromeso.2016.01.047
复制
发表时间：
2016-05-01
影响因子：
5.2
通讯作者：
Chen, Yunlin
中科院分区：
文献类型：
--
作者：
Zhou, Yang;Zhou, Lin;Chen, Yunlin
在甲醇体系中，于室温下制备了分子筛咪唑骨架-8(ZIF-8)/氧化石墨烯(GO)杂化纳米复合材料。ZIF-8/GO复合材料具有可调的纳米级形貌和孔隙率，这都是由GO含量决定的。一系列表征技术证实了在合成的复合材料中ZIF-8与GO形成了强相互作用。合成的ZIF-8/GO复合材料由聚集的纳米颗粒组成，由于ZIF-8与氧化石墨烯(GO)的协同作用，其对挥发性有机物(VOCs)的吸附能力高于普通ZIF-8晶体。当GO含量为15wt%时，ZIF-8/GO对VOCs的最大吸附容量可达240 mg/g。ZIF-8与GO的协同作用为制备新型的ZIF/GO复合材料提供了一条新的途径，可用于吸附等广泛应用。(C)2016 Elsevier Inc.保留所有权利。
Hybrid nanocomposites of zeolitic imidazolate framework-8 (ZIF-8) and graphene oxide (GO) were prepared in a methanol system at room temperature. The ZIF-8/GO composites exhibited tunable nanoscale morphology and porosity, both determined by the GO content. A series of characterization techniques confirmed the formation of strong interactions between ZIF-8 and GO in the synthesized composites. The as-synthesized ZIF-8/GO composites were composed of aggregated nano-sized particles, and exhibited a higher volatile organic compounds (VOCs) uptake capacity than normal ZIF-8 crystal owing to the synergistic effect between ZIF-8 and graphene oxide(GO). Also an increase in the content of GO resulted in enhancing in the VOCs adsorption capacity, and the maximum adsorption capacity for VOCs was up to 240 mg/g on ZIF-8/GO with the GO content of 15 wt%. The synergistic interactions of ZIF-8 and GO may provide a new path to fabricate novel ZIFs/GO composites for a wide range of applications such as adsorption. (C) 2016 Elsevier Inc. All rights reserved.