{"title":"阶梯吸附等温线出现原因的探讨","authors":"A. V. Voronina","doi":"10.1134/S1066362224050011","DOIUrl":null,"url":null,"abstract":"<p>The paper analyzes the causes of the appearance of steps with plateaus of different lengths in sorption isotherms, based on experimental and literature data. Examples of step-shaped isotherms are given to illustrate each type of causes. It is shown that the following factors can cause the deviation of sorption isotherms from linearity and the appearance of steps: sorbent polyfunctionality, the presence of sorption sites with significantly different specificity to sorbate; sorbate heterogeneity, the presence of inert sorbable sorbate species; chemical transformation of sorbents in the course of sorption with the formation of new phases, including processes involving solution components; sequential change of sorption mechanisms.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"589 - 608"},"PeriodicalIF":0.9000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of the Causes of Appearance of Step-Shaped Form of Sorption Isotherm\",\"authors\":\"A. V. Voronina\",\"doi\":\"10.1134/S1066362224050011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The paper analyzes the causes of the appearance of steps with plateaus of different lengths in sorption isotherms, based on experimental and literature data. Examples of step-shaped isotherms are given to illustrate each type of causes. It is shown that the following factors can cause the deviation of sorption isotherms from linearity and the appearance of steps: sorbent polyfunctionality, the presence of sorption sites with significantly different specificity to sorbate; sorbate heterogeneity, the presence of inert sorbable sorbate species; chemical transformation of sorbents in the course of sorption with the formation of new phases, including processes involving solution components; sequential change of sorption mechanisms.</p>\",\"PeriodicalId\":747,\"journal\":{\"name\":\"Radiochemistry\",\"volume\":\"66 5\",\"pages\":\"589 - 608\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2024-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiochemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1066362224050011\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1066362224050011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Investigation of the Causes of Appearance of Step-Shaped Form of Sorption Isotherm
The paper analyzes the causes of the appearance of steps with plateaus of different lengths in sorption isotherms, based on experimental and literature data. Examples of step-shaped isotherms are given to illustrate each type of causes. It is shown that the following factors can cause the deviation of sorption isotherms from linearity and the appearance of steps: sorbent polyfunctionality, the presence of sorption sites with significantly different specificity to sorbate; sorbate heterogeneity, the presence of inert sorbable sorbate species; chemical transformation of sorbents in the course of sorption with the formation of new phases, including processes involving solution components; sequential change of sorption mechanisms.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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