文献类型：期刊文献

英文题名：Effects of the Properties of Activated Carbons on the Characteristics of the Active Phase and H2s Removal Performance of Cufe2o4-Based Adsorbents

作者：Guo, Yingchun[1]; Chen, Shanshan[1]; Wu, Kerong[1]; Yang, Zhen[1]; Liang, Xiaoyi[1,2]

机构：[1] State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Key Laboratory of Specially Functional Polymeric Materials and Related Technology, Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220128199)

语种：英文

外文关键词：Activated carbon - Binary alloys - Desulfurization - Morphology

摘要：Wood-, coal-, coconut shell-, and pitch-based activated carbons with different physical and chemical properties were selected as supports loaded with 20 wt% CuFe 2 O 4 to investigate their effect on the characteristics of the active phase and on the final performance of the novel H 2 S adsorbents. The samples were characterized by TEM-EDX, TG, XPS, XRD, adsorption of nitrogen and so on. Based on adsorption capacities and comprehensive characterization, the wood-based activated carbon and CuFe 2 O 4 exhibited an excellent synergistic effect. The characteristics of the activated carbon supports determined the active phase properties and controlled H 2 S removal performance. The main desulfurization products of modified activated carbons were elemental S. Furthermore, in the adsorbents, the pore volume of 1~4 nm was the most crucial for H 2 S removal. The variations in the graphitization degree, microporosity, and surface pH of the activated carbon supports led to considerable differences in the morphology and composition of active phases, resulting in the drastically different desulfurization performances of the adsorbents. This study provides novel insights into the influence of the synergistic effects between the activated carbon supports and active phase on H 2 S removal and can help prepare highly efficient desulfurizers. ? 2022, The Authors. All rights reserved.