High-efficiency SO2 removal on Fe-impregnated activated carbon fiber-oxidized using low-concentration oxygen gas

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends Pub Date : 2025-09-15 DOI:10.1016/j.cartre.2025.100570

Miftahul Huda , Ika Monika , Suganal Suganal , Amru Daulay , Edwin Akhdiat Daranin , Teuku Ishlah , Jin Miyawaki

{"title":"High-efficiency SO2 removal on Fe-impregnated activated carbon fiber-oxidized using low-concentration oxygen gas","authors":"Miftahul Huda , Ika Monika , Suganal Suganal , Amru Daulay , Edwin Akhdiat Daranin , Teuku Ishlah , Jin Miyawaki","doi":"10.1016/j.cartre.2025.100570","DOIUrl":null,"url":null,"abstract":"<div><div>Carbon-based adsorbents exhibit strong adsorption capabilities for low-concentration SO<sub>2</sub>, and thus exhibit high-efficiency removal performance of SO<sub>2</sub> from exhaust gas. This study aims to further improve the SO<sub>2</sub> adsorption capacity of pitch-based activated carbon fiber (ACF) through controlled oxidation. Pristine ACF (PACF) and Fe-impregnated ACF (FeACF) were oxidized using low-concentration oxygen gas (2 % O<sub>2</sub> in N<sub>2</sub>). The results showed that the oxidation of ACFs using low concentration O<sub>2</sub> increased the contents of oxygen-containing surface functional groups, and the oxidation of ACFs followed by heat treatment increased the specific surface area and widened the pore size. The adsorption capacity of PACF was 150.8 mL/g-ACF. Oxidization of FeACF at 450 °C for 1 hour and heat treatment at 1100 °C increased the SO<sub>2</sub> removal capacity, reaching 491.0 mL/g-ACF.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"21 ","pages":"Article 100570"},"PeriodicalIF":3.9000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon Trends","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667056925001191","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Carbon-based adsorbents exhibit strong adsorption capabilities for low-concentration SO₂, and thus exhibit high-efficiency removal performance of SO₂ from exhaust gas. This study aims to further improve the SO₂ adsorption capacity of pitch-based activated carbon fiber (ACF) through controlled oxidation. Pristine ACF (PACF) and Fe-impregnated ACF (FeACF) were oxidized using low-concentration oxygen gas (2 % O₂ in N₂). The results showed that the oxidation of ACFs using low concentration O₂ increased the contents of oxygen-containing surface functional groups, and the oxidation of ACFs followed by heat treatment increased the specific surface area and widened the pore size. The adsorption capacity of PACF was 150.8 mL/g-ACF. Oxidization of FeACF at 450 °C for 1 hour and heat treatment at 1100 °C increased the SO₂ removal capacity, reaching 491.0 mL/g-ACF.

查看原文本刊更多论文

低浓度氧气氧化铁浸渍活性炭纤维高效脱除SO2

碳基吸附剂对低浓度SO2具有较强的吸附能力，对废气中SO2具有高效的去除效果。本研究旨在通过控制氧化进一步提高沥青基活性炭纤维（ACF）对SO2的吸附能力。采用低浓度氧气（2% O2 in N2）氧化原始ACF （PACF）和fe -浸渍ACF （FeACF）。结果表明：低浓度O2氧化后的ACFs表面含氧官能团含量增加，氧化后热处理后的ACFs比表面积增大，孔径扩大；PACF的吸附量为150.8 mL/g-ACF。450℃氧化1小时，1100℃热处理，SO2去除率提高，达到491.0 mL/g-ACF。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊