Novel MOF-5 derived porous carbons as excellent adsorption materials for n-hexane
Novel MOF-5 derived porous carbons as excellent adsorption materials for n-hexane
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新型 MOF-5 衍生多孔碳作为正己烷的优异吸附材料
DOI：
10.1016/j.jssc.2019.01.002
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发表时间：
2019-03
影响因子：
3.3
通讯作者：
Wu Qi-Hui
中科院分区：
文献类型：
--
作者：
Sun Xuejiao;Wu Tingting;Yan Zhimin;Chen Wen-Jie;Lian Xiao-Bing;Xia Qibin;Chen Shaoyun;Wu Qi-Hui
采用绿色碳源(葡萄糖或蔗糖)对MOF-5进行炭化，再用KOH活化，制得了对正己烷具有高吸附能力的多孔炭。讨论了碳源和KOH活化剂的添加对多孔炭孔隙率的影响。在此条件下合成的多孔炭对正己烷的吸附性能进行了表征和测试。结果表明，KC-S-B多孔炭的比表面积和孔容分别高达1902.6 m~2/g和1.29 cm~3/g。KC-S-B具有超高的正己烷吸附容量，达10.0 /g，远高于已报道的大多数正己烷吸附剂。此外，KC-S-B具有很高的疏水性和良好的水稳定性，这一点在考虑到材料在常温下的吸附应用时是非常重要的。KC-S-B是一种新型的MOF衍生多孔炭，具有高吸附容量、高疏水性和良好的水稳定性，是一种有吸引力的挥发性有机物吸附候选材料。
Porous carbons with high adsorption capacity ofn-hexane were developed by carbonization of MOF-5 with green carbon sources (glucose or sucrose) and activation with KOH. The effects of the additions of carbon sources and KOH activator on the porosity of porous carbon were discussed. The porous carbon synthesized based on the optimized conditions was then characterized and tested for its adsorption performance towardsn-hexane. Results show that BET surface area and pore volume of the porous carbon KC-S-B reach as high as 1902.6 m2/g and 1.29 cm3/g, respectively. KC-S-B exhibits super-highn-hexane capacity of 10.0 mmol/g, much higher than most reportedn-hexane adsorbents. Moreover, KC-S-B exhibits high hydrophobicity and excellent water stability, which is significantly important when considering the material for adsorption applications in the ambient situation. KC-S-B as a novel MOF derived porous carbon with high adsorption capacity, high hydrophobicity and excellent water stability is an attractive candidate for volatile organic compounds adsorption.
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