Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties
The sorption of copper(II) ions in a wide range of pH by two Russian carbon sorbents BAU-A and MIU-S was studied. Sorbents varied in structure, surface area, pH of the point of zero charge (pHZPC), and graphitization degree. The sorption studies were conducted in batch mode. The removal of copper(II...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2022-05-01
|
| Series: | Water Science and Technology |
| Subjects: | |
| Online Access: | http://wst.iwaponline.com/content/85/10/3088 |
| _version_ | 1828292108381847552 |
|---|---|
| author | О. D. Linnikov I. V. Rodina I. V. Baklanova A. Yu. Suntsov A. P. Tyutyunnik |
| author_facet | О. D. Linnikov I. V. Rodina I. V. Baklanova A. Yu. Suntsov A. P. Tyutyunnik |
| author_sort | О. D. Linnikov |
| collection | DOAJ |
| description | The sorption of copper(II) ions in a wide range of pH by two Russian carbon sorbents BAU-A and MIU-S was studied. Sorbents varied in structure, surface area, pH of the point of zero charge (pHZPC), and graphitization degree. The sorption studies were conducted in batch mode. The removal of copper(II) ions from a solution at pH 4, 5, 6, and 6.7 is described by the classical adsorption isotherms of Freundlich, Langmuir, and Dubinin–Radushkevich. With an increase in pH from 4 to 6.7, the sorption capacity of sorbents increases, from 0.910 to 7.163 mg/g for BAU-A, and from 0.265 to 3.307 mg/g for MIU-S. The relationship between the degree of crystallinity and the sorption properties of sorbents has been established. HIGHLIGHTS
With an increase in pH from 4 to 6.7, the sorption capacity of BAU-A increases from 0.910 to 7.163 mg/g, and of MIU-S from 0.265 to 3.307 mg/g.;
The removal of copper(II) ions is due to simple physical adsorption.;
There is a relationship between the degree of crystallinity, and the sorption properties of the sorbents.; |
| first_indexed | 2024-04-13T11:03:12Z |
| format | Article |
| id | doaj.art-4d48ca2585e04db2858f7f4ee68b3ab8 |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-04-13T11:03:12Z |
| publishDate | 2022-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-4d48ca2585e04db2858f7f4ee68b3ab82022-12-22T02:49:21ZengIWA PublishingWater Science and Technology0273-12231996-97322022-05-0185103088310610.2166/wst.2022.148148Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption propertiesО. D. Linnikov0I. V. Rodina1I. V. Baklanova2A. Yu. Suntsov3A. P. Tyutyunnik4 Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91 Pervomayskaya St., Ekaterinburg 620990, Russia Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91 Pervomayskaya St., Ekaterinburg 620990, Russia Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91 Pervomayskaya St., Ekaterinburg 620990, Russia Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91 Pervomayskaya St., Ekaterinburg 620990, Russia Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91 Pervomayskaya St., Ekaterinburg 620990, Russia The sorption of copper(II) ions in a wide range of pH by two Russian carbon sorbents BAU-A and MIU-S was studied. Sorbents varied in structure, surface area, pH of the point of zero charge (pHZPC), and graphitization degree. The sorption studies were conducted in batch mode. The removal of copper(II) ions from a solution at pH 4, 5, 6, and 6.7 is described by the classical adsorption isotherms of Freundlich, Langmuir, and Dubinin–Radushkevich. With an increase in pH from 4 to 6.7, the sorption capacity of sorbents increases, from 0.910 to 7.163 mg/g for BAU-A, and from 0.265 to 3.307 mg/g for MIU-S. The relationship between the degree of crystallinity and the sorption properties of sorbents has been established. HIGHLIGHTS With an increase in pH from 4 to 6.7, the sorption capacity of BAU-A increases from 0.910 to 7.163 mg/g, and of MIU-S from 0.265 to 3.307 mg/g.; The removal of copper(II) ions is due to simple physical adsorption.; There is a relationship between the degree of crystallinity, and the sorption properties of the sorbents.;http://wst.iwaponline.com/content/85/10/3088carbon sorbentscopper(ii) ionsir and raman spectralangmuirsorption |
| spellingShingle | О. D. Linnikov I. V. Rodina I. V. Baklanova A. Yu. Suntsov A. P. Tyutyunnik Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties Water Science and Technology carbon sorbents copper(ii) ions ir and raman spectra langmuir sorption |
| title | Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties |
| title_full | Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties |
| title_fullStr | Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties |
| title_full_unstemmed | Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties |
| title_short | Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties |
| title_sort | sorption of copper ii ions from aqueous solution by activated carbon bau a and coal sorbent miu s the relationship between the structure of sorbents and their sorption properties |
| topic | carbon sorbents copper(ii) ions ir and raman spectra langmuir sorption |
| url | http://wst.iwaponline.com/content/85/10/3088 |
| work_keys_str_mv | AT odlinnikov sorptionofcopperiiionsfromaqueoussolutionbyactivatedcarbonbauaandcoalsorbentmiustherelationshipbetweenthestructureofsorbentsandtheirsorptionproperties AT ivrodina sorptionofcopperiiionsfromaqueoussolutionbyactivatedcarbonbauaandcoalsorbentmiustherelationshipbetweenthestructureofsorbentsandtheirsorptionproperties AT ivbaklanova sorptionofcopperiiionsfromaqueoussolutionbyactivatedcarbonbauaandcoalsorbentmiustherelationshipbetweenthestructureofsorbentsandtheirsorptionproperties AT ayusuntsov sorptionofcopperiiionsfromaqueoussolutionbyactivatedcarbonbauaandcoalsorbentmiustherelationshipbetweenthestructureofsorbentsandtheirsorptionproperties AT aptyutyunnik sorptionofcopperiiionsfromaqueoussolutionbyactivatedcarbonbauaandcoalsorbentmiustherelationshipbetweenthestructureofsorbentsandtheirsorptionproperties |