{"title":"Properties of Anthracite-Based Sorbent before and after Ferrous Ion Sorption","authors":"N. V. Gora, O. V. Belyaeva, D. A. Chernyshoyv","doi":"10.3103/S1068364X2560040X","DOIUrl":null,"url":null,"abstract":"<p>The texture and surface state of Purolat Standard sorbent are studied before and after the sorption of ferrous ions from aqueous solutions, by various instrumental methods. The presence of iron at the surface largely affects the sorbent’s organic compound. The extraction of iron is accompanied by partial destruction of the sorbent surface, possibly as a result of both the oxidation of amorphous carbon and the conversion of phenol and simple ester groups to carboxyl groups. The adsorption of iron ions may occur mainly by ion exchange but also by complex formation with groups at the carbon surface. IR spectroscopy suggests that the ferrous ions are adsorbed at the surface in the form of hydrated complexes.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 3","pages":"238 - 242"},"PeriodicalIF":0.5000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coke and Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068364X2560040X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The texture and surface state of Purolat Standard sorbent are studied before and after the sorption of ferrous ions from aqueous solutions, by various instrumental methods. The presence of iron at the surface largely affects the sorbent’s organic compound. The extraction of iron is accompanied by partial destruction of the sorbent surface, possibly as a result of both the oxidation of amorphous carbon and the conversion of phenol and simple ester groups to carboxyl groups. The adsorption of iron ions may occur mainly by ion exchange but also by complex formation with groups at the carbon surface. IR spectroscopy suggests that the ferrous ions are adsorbed at the surface in the form of hydrated complexes.
期刊介绍：
The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.
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