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<p>In this study, silver nitrate-modified activated carbon was synthesized via the incipient wetness impregnation method, and the prepared adsorbent was used for adsorptive desulfurization of light naphtha. Characterization techniques including XRD, TEM, SEM–EDS, TG/DSC, ICP-OES, and XPS were utilized to comprehensively characterize the modification effect of silver nitrate on the adsorbent and the adsorption efficiency of elemental sulfur. The BET-N<sub>2</sub> isotherm revealed the micro-mesoporous properties of the material. The adsorbent Ag1/AC exhibited an adsorption capacity for elemental sulfur as high as 56.78&#xa0;mg S/g. The overall mechanism characteristics were confirmed by adsorption isotherm and kinetic data, where the adsorption was found to follow pseudo-first&#xa0;order kinetics with physical adsorption being the predominant process.</p>

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Silver-modified activated carbon for adsorptive removal of elemental sulfur from light naphtha

  • 期刊论文

  • 发表日期：

    2026年2月26日

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  • Naiwang Liu,
  • Linyong Qi

摘要

In this study, silver nitrate-modified activated carbon was synthesized via the incipient wetness impregnation method, and the prepared adsorbent was used for adsorptive desulfurization of light naphtha. Characterization techniques including XRD, TEM, SEM–EDS, TG/DSC, ICP-OES, and XPS were utilized to comprehensively characterize the modification effect of silver nitrate on the adsorbent and the adsorption efficiency of elemental sulfur. The BET-N2 isotherm revealed the micro-mesoporous properties of the material. The adsorbent Ag1/AC exhibited an adsorption capacity for elemental sulfur as high as 56.78 mg S/g. The overall mechanism characteristics were confirmed by adsorption isotherm and kinetic data, where the adsorption was found to follow pseudo-first order kinetics with physical adsorption being the predominant process.