{"title":"利用改性活性炭纤维结合电动修复技术修复受镉污染的土壤","authors":"Dao-lin Zhou, Yue Cheng, Yu-shan Wan","doi":"10.1007/s12210-024-01252-x","DOIUrl":null,"url":null,"abstract":"<p>In this study, modified activated carbon fibers and phytic acid-doped polyaniline/activated carbon fiber composites were successfully prepared by modifying activated carbon fibers and compounding polyaniline. The electrokinetic adsorption combined remediation technology was used to study the remediation of cadmium-contaminated soil. The results showed that when the electric field intensity was 2 V cm<sup>−1</sup> and the repair time was 120 h, 0.1 mol L<sup>−1</sup> citric acid solution was circularly added to the cathode using electrolyte. The current during the repair process showed periodic fluctuations with the extension of the repair time. The current of adding P-PANI/ACF adsorbent near the cathode region was larger than that of other groups, and cadmium has a higher removal rate. The mean removal rate of Cd(II) in soil with a content of 60 mg kg<sup>−1</sup> reach 76.94%.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":54501,"journal":{"name":"Rendiconti Lincei-Scienze Fisiche E Naturali","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Remediation of cadmium-contaminated soil using modified activated carbon fiber combined with electrodynamic remediation technology\",\"authors\":\"Dao-lin Zhou, Yue Cheng, Yu-shan Wan\",\"doi\":\"10.1007/s12210-024-01252-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this study, modified activated carbon fibers and phytic acid-doped polyaniline/activated carbon fiber composites were successfully prepared by modifying activated carbon fibers and compounding polyaniline. The electrokinetic adsorption combined remediation technology was used to study the remediation of cadmium-contaminated soil. The results showed that when the electric field intensity was 2 V cm<sup>−1</sup> and the repair time was 120 h, 0.1 mol L<sup>−1</sup> citric acid solution was circularly added to the cathode using electrolyte. The current during the repair process showed periodic fluctuations with the extension of the repair time. The current of adding P-PANI/ACF adsorbent near the cathode region was larger than that of other groups, and cadmium has a higher removal rate. The mean removal rate of Cd(II) in soil with a content of 60 mg kg<sup>−1</sup> reach 76.94%.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical abstract</h3>\",\"PeriodicalId\":54501,\"journal\":{\"name\":\"Rendiconti Lincei-Scienze Fisiche E Naturali\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rendiconti Lincei-Scienze Fisiche E Naturali\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1007/s12210-024-01252-x\",\"RegionNum\":4,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rendiconti Lincei-Scienze Fisiche E Naturali","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1007/s12210-024-01252-x","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
本研究通过改性活性炭纤维和复合聚苯胺，成功制备了改性活性炭纤维和植酸掺杂聚苯胺/活性炭纤维复合材料。采用电动吸附联合修复技术研究了镉污染土壤的修复问题。结果表明，当电场强度为 2 V cm-1、修复时间为 120 h 时，利用电解液向阴极循环添加 0.1 mol L-1 的柠檬酸溶液。随着修复时间的延长，修复过程中的电流呈现周期性波动。在阴极区附近添加 P-PANI/ACF 吸附剂的电流大于其他组，镉的去除率更高。镉（II）在 60 mg kg-1 含量土壤中的平均去除率达到 76.94%。
Remediation of cadmium-contaminated soil using modified activated carbon fiber combined with electrodynamic remediation technology
In this study, modified activated carbon fibers and phytic acid-doped polyaniline/activated carbon fiber composites were successfully prepared by modifying activated carbon fibers and compounding polyaniline. The electrokinetic adsorption combined remediation technology was used to study the remediation of cadmium-contaminated soil. The results showed that when the electric field intensity was 2 V cm−1 and the repair time was 120 h, 0.1 mol L−1 citric acid solution was circularly added to the cathode using electrolyte. The current during the repair process showed periodic fluctuations with the extension of the repair time. The current of adding P-PANI/ACF adsorbent near the cathode region was larger than that of other groups, and cadmium has a higher removal rate. The mean removal rate of Cd(II) in soil with a content of 60 mg kg−1 reach 76.94%.
期刊介绍：
Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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