Kim, Soojung Bajaj, Bharat Byun, Chang Ki Kwon, Soon-Jin Joh, Han-Ik Yi, Kwang Bok Lee, Sungho 2024-01-20T08:31:01Z 2024-01-20T08:31:01Z 2021-09-02 2014-11-30 0169-4332 https://pubs.kist.re.kr/handle/201004/126090 Polyacrylonitrile (PAN) derived carbon nanofiber (CNF) webs loaded with zinc oxide (ZnO) were synthesized using electrospinning and heat treatment at 600 C. Uniformly dispersed ZnO nanoparticles, clarified by X-ray diffraction and scanning electron microscopy, were observed on the surface of the nanofiber composites containing 13.6-29.5 wt% of ZnO. The further addition of ZnO up to 34.2 wt% caused agglomeration with a size of 50-80 nm. Higher ZnO contents led the concentrated ZnO nanoparticles on the surface of the nanofibers rather than uniform dispersion along the cross-section of the fiber. The flexible composite webs were crushed and tested for hydrogen sulfide (H2S) adsorption at 300 degrees C. Breakthrough experiments with the ZnO/CNF composite containing 25.7 wt% of ZnO for H2S adsorption showed three times higher ZnO utilization efficiency compared to pure ZnO nano powders, attributed to chemisorption of the larger surface area of well dispersed ZnO particles on nanofibers and physical adsorption of CNF. (C) 2014 Elsevier B.V. All rights reserved. English ELSEVIER CHEMICALLY ACTIVATED CARBONS HYDROGEN-SULFIDE ADSORPTION VAPOR ADSORPTION H2S OXIDE REMOVAL SULFUR OXIDATION GRAPHENE Preparation of flexible zinc oxide/carbon nanofiber webs for mid-temperature desulfurization Article 10.1016/j.apsusc.2014.09.093 1 APPLIED SURFACE SCIENCE, v.320, pp.218 - 224 APPLIED SURFACE SCIENCE 320 218 224 scie scopus 000345399900027 2-s2.0-84919394739 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article CHEMICALLY ACTIVATED CARBONS HYDROGEN-SULFIDE ADSORPTION VAPOR ADSORPTION H2S OXIDE REMOVAL SULFUR OXIDATION GRAPHENE Electrospinning Carbon nanofibers Zinc oxide Hydrogen sulfide Desulfurization