Self-templated synthesis of CoS2 hollow polyhedron with superior performance for removal of dye and heavy metal ion
Self-templated synthesis of CoS2 hollow polyhedron with superior performance for removal of dye and heavy metal ion
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DOI：
10.1016/j.jallcom.2018.10.210
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发表时间：
2019-03
影响因子：
6.2
通讯作者：
Yufeng Guo;Yu-Ning Wang;Jun Zheng;Xiu-Ying Zheng;Shuang-Kui Guang;Cheng Chen;Guiqi Gao;Hanbao Cho
中科院分区：
文献类型：
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作者：
Yufeng Guo;Yu-Ning Wang;Jun Zheng;Xiu-Ying Zheng;Shuang-Kui Guang;Cheng Chen;Guiqi Gao;Hanbao Cho
具有中空结构的纳米材料因其广泛的应用而成为近年来研究的热点。本文成功开发了一种以ZIF-67为牺牲模板合成多面体cos2中空纳米结构的有效方法。作为荧光素钠和Pb（II）的吸附剂，吸附等温线符合Langmuir模型，最大吸附量分别为289和758 mg g−1。此外，制备的cos2在去除荧光素钠染料方面也具有良好的回收能力，经过4次循环后，吸附效率仍保持在98%。多面体cos2中空纳米结构对染料和重金属离子的吸附性能优越，在水处理中具有潜在的应用前景。
Nanomaterials with hollow structures have been the focus of attention in recent years because of their widespread applications. In this article, we successfully developed an effective method to synthesize polyhedral CoS2hollow nanostructure using ZIF-67 as the sacrificial template. When assessed as the adsorbents for fluorescein sodium and Pb(II) removal, the adsorption isotherm show a good fit with the Langmuir model, with the maximum adsorption capacities of 289 and 758 mg g−1, respectively. In addition, the as-prepared CoS2also has a good recycling ability in the removal of fluorescein sodium dye, and the adsorption efficiency remains 98% after the four cycles. The superior performance for adsorption of dye and heavy metal ion make the polyhedral CoS2hollow nanostructure have potential applications in water treatment.