{"title":"Interaction of Humic Acids with Naphthalene","authors":"N. V. Yudina, T. V. Petrenko","doi":"10.3103/S0361521924020150","DOIUrl":null,"url":null,"abstract":"<p>The interaction of humic acids (HAs) isolated from oxidized brown coal with the polyaromatic hydrocarbon naphthalene has been studied. The electron-donating properties of HAs were evaluated based on the intensity of electronic transitions in the UV region and calculated descriptors. The modification of the HA structure was carried out by mechanical activation (MA) under alkaline and oxidative conditions. A significant increase in the fraction of aromatic and oxidized fragments in the HA structure after MA under oxidative conditions increased the intensity of binding HAs to naphthalene. A significant increase in the adsorption capacity of mechanically activated HAs in a dispersive aqueous medium with naphthalene was demonstrated.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Fuel Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S0361521924020150","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The interaction of humic acids (HAs) isolated from oxidized brown coal with the polyaromatic hydrocarbon naphthalene has been studied. The electron-donating properties of HAs were evaluated based on the intensity of electronic transitions in the UV region and calculated descriptors. The modification of the HA structure was carried out by mechanical activation (MA) under alkaline and oxidative conditions. A significant increase in the fraction of aromatic and oxidized fragments in the HA structure after MA under oxidative conditions increased the intensity of binding HAs to naphthalene. A significant increase in the adsorption capacity of mechanically activated HAs in a dispersive aqueous medium with naphthalene was demonstrated.
摘要 研究了从氧化褐煤中分离出的腐植酸（HAs）与多芳香烃萘之间的相互作用。根据紫外区电子跃迁强度和计算描述符评估了腐植酸的电子供能特性。在碱性和氧化条件下，通过机械活化（MA）对 HA 结构进行了修饰。在氧化条件下进行机械活化后，HA 结构中芳香族和氧化片段的比例明显增加，从而提高了 HA 与萘的结合强度。在萘的分散水介质中，机械活化的 HAs 的吸附能力明显提高。
期刊介绍：
The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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