吸附剂
烟气脱硫
纳米纤维
化学工程
材料科学
碳化
静电纺丝
比表面积
多孔性
碳纳米纤维
色散(光学)
热液循环
吸附
硫黄
纳米技术
化学
复合材料
扫描电子显微镜
有机化学
冶金
催化作用
物理
光学
碳纳米管
工程类
聚合物
作者
Yu Feng,Man Zhang,Yangjie Sun,Chunyan Cao,Jiancheng Wang,Mingzheng Ge,Weilong Cai,Jie Mi,Yuekun Lai
标识
DOI:10.1016/j.cej.2023.142590
摘要
Sorbent with a great quantity of highly dispersed active components is of importance to achieve excellent desulfurization performance. Thus, [email protected]x/porous carbon nanofibers (PCNFs) sorbent has been constructed via electrospinning, carbonization and hydrothermal techniques in this study. The as-prepared sorbent realizes a sulfur capacity of 9.63 g S 100 g−1 sorbent and a utilization 117% of ZnO, which can be attributed to the synergetic effects of the enlarged surface area of PCNFs and the uniformly distributed active components. The specific surface area of modified PCNFs is nearly five times higher than that of the pristine CNFs, providing larger loading area and more attachment sites for metal oxides. Activation with KMnO4 not only generates active component MnOx but also presets 'seed' for the attachment of Zn2+, which is beneficial for the high dispersion of active components. The presented method is beneficial to producing sorbents with better structure and promotes desulfurization performances.
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