Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Republic of Korea.
College of Resources and Environmental, South-Central University for Nationalities, Wuhan, 430-074, China.
Environ Sci Pollut Res Int. 2018 Oct;25(28):28109-28119. doi: 10.1007/s11356-018-2849-6. Epub 2018 Aug 1.
The metal-organic framework (MOF) materials, MIL-101(Cr), and copper-doped MIL-101(Cr) (Cu@MIL-101(Cr)) were prepared through hydrothermal method and were used to remove volatile organic compounds (VOCs) in this study. Morphological characterization demonstrated that MIL-101(Cr) and Cu-3@MIL-101(Cr) were octahedral crystal, with specific surface area of 3367 and 2518 m/g, respectively. The results of XRD, TG, and FTIR showed that the copper doping procedure would not alter the skeleton structure, but it would affect the crystallinity and thermal stability of MIL-101(Cr). Besides, MIL-101(Cr) and Cu-3@MIL-101(Cr) displayed good removal efficiencies on benzene sorption, and the maximum sorption capacity was 103.4 and 114.4 mg/g, respectively. In competitive adsorptions, the order of adsorption priority on Cu-3@MIL-101(Cr) was as follows: ethylbenzene > toluene > benzene. Hence, it could be concluded that MIL-101(Cr) and copper-doped MIL-101(Cr) demonstrated good performance in VOCs adsorption and showed a promising potential for large-scale applications in the removal of VOCs. Graphical abstract ᅟ.
金属-有机骨架（MOF）材料 MIL-101(Cr) 和铜掺杂 MIL-101(Cr)（Cu@MIL-101(Cr)）通过水热法制备，并用于去除本研究中的挥发性有机化合物（VOCs）。形态特征表明 MIL-101(Cr) 和 Cu-3@MIL-101(Cr) 为八面体晶体，比表面积分别为 3367 和 2518 m/g。XRD、TG 和 FTIR 的结果表明，铜掺杂过程不会改变骨架结构，但会影响 MIL-101(Cr) 的结晶度和热稳定性。此外，MIL-101(Cr) 和 Cu-3@MIL-101(Cr) 在苯吸附方面表现出良好的去除效率，最大吸附容量分别为 103.4 和 114.4 mg/g。在竞争吸附中，Cu-3@MIL-101(Cr) 的吸附优先顺序如下：乙苯>甲苯>苯。因此，可以得出结论，MIL-101(Cr) 和铜掺杂 MIL-101(Cr) 在 VOCs 吸附方面表现出良好的性能，在去除 VOCs 方面具有广阔的应用前景。
