Adsorption of methylene blue from aqueous solutions by pyrolusite ore
In this study, the adsorption of methylene blue dye was examined by using pyrolusite ore as a low-cost alternative adsorbent source. Pyrolusite, which contains mainly MnO<sub>2</sub>, is a manganese ore. The effects of the initial concentration of dye, contact time, initial pH of solutio...
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| Format: | Article |
| Language: | English |
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Mongolian Academy of Sciences
2018-02-01
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| Series: | Mongolian Journal of Chemistry |
| Subjects: | |
| Online Access: | https://www.mongoliajol.info/index.php/MJC/article/view/880 |
| _version_ | 1811304742539755520 |
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| author | Nizamettin Demirkıran G D Turhan Özdemir M Saraç M Dardağan |
| author_facet | Nizamettin Demirkıran G D Turhan Özdemir M Saraç M Dardağan |
| author_sort | Nizamettin Demirkıran |
| collection | DOAJ |
| description | In this study, the adsorption of methylene blue dye was examined by using pyrolusite ore as a low-cost alternative adsorbent source. Pyrolusite, which contains mainly MnO<sub>2</sub>, is a manganese ore. The effects of the initial concentration of dye, contact time, initial pH of solution, adsorbent dosage, stirring speed of solution, and average particle size of adsorbent on the adsorption of methylene blue were studied. It was found that the percentage of the adsorbed dye increased with increasing the amount of pyrolusite. While the initial dye concentration, initial pH, contact time, stirring speed, particle size, and adsorbent dosage were 25 ppm, 6, 90 min, 250 rpm, 63 µm, and 12 g/l, respectively, the efficiency of dye adsorption on pyrolusite ore was 99%. The isotherm and kinetic studies relating to this adsorption process were also made. It was found that the equilibrium data followed the Langmuir isotherm model while the kinetic of process could be described by the pseudo-second order kinetic model. |
| first_indexed | 2024-04-13T08:12:48Z |
| format | Article |
| id | doaj.art-bc3c099ce80848dcbdec699b0bcc1fd3 |
| institution | Directory Open Access Journal |
| issn | 2226-6739 2414-0082 |
| language | English |
| last_indexed | 2024-04-13T08:12:48Z |
| publishDate | 2018-02-01 |
| publisher | Mongolian Academy of Sciences |
| record_format | Article |
| series | Mongolian Journal of Chemistry |
| spelling | doaj.art-bc3c099ce80848dcbdec699b0bcc1fd32022-12-22T02:54:55ZengMongolian Academy of SciencesMongolian Journal of Chemistry2226-67392414-00822018-02-01184451110.5564/mjc.v18i44.880881Adsorption of methylene blue from aqueous solutions by pyrolusite oreNizamettin Demirkıran0G D Turhan Özdemir1M Saraç2M Dardağan3Department of Chemical Engineering, Faculty of Engineering, Inonu University, Malatya, 44280, TurkeyDepartment of Chemical Engineering, Faculty of Engineering, Inonu University, Malatya, 44280, TurkeyDepartment of Chemical Engineering, Faculty of Engineering, Inonu University, Malatya, 44280, TurkeyDepartment of Chemical Engineering, Faculty of Engineering, Inonu University, Malatya, 44280, TurkeyIn this study, the adsorption of methylene blue dye was examined by using pyrolusite ore as a low-cost alternative adsorbent source. Pyrolusite, which contains mainly MnO<sub>2</sub>, is a manganese ore. The effects of the initial concentration of dye, contact time, initial pH of solution, adsorbent dosage, stirring speed of solution, and average particle size of adsorbent on the adsorption of methylene blue were studied. It was found that the percentage of the adsorbed dye increased with increasing the amount of pyrolusite. While the initial dye concentration, initial pH, contact time, stirring speed, particle size, and adsorbent dosage were 25 ppm, 6, 90 min, 250 rpm, 63 µm, and 12 g/l, respectively, the efficiency of dye adsorption on pyrolusite ore was 99%. The isotherm and kinetic studies relating to this adsorption process were also made. It was found that the equilibrium data followed the Langmuir isotherm model while the kinetic of process could be described by the pseudo-second order kinetic model.https://www.mongoliajol.info/index.php/MJC/article/view/880Adsorptionlow cost adsorbentmethylene bluepyrolusite ore |
| spellingShingle | Nizamettin Demirkıran G D Turhan Özdemir M Saraç M Dardağan Adsorption of methylene blue from aqueous solutions by pyrolusite ore Mongolian Journal of Chemistry Adsorption low cost adsorbent methylene blue pyrolusite ore |
| title | Adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| title_full | Adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| title_fullStr | Adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| title_full_unstemmed | Adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| title_short | Adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| title_sort | adsorption of methylene blue from aqueous solutions by pyrolusite ore |
| topic | Adsorption low cost adsorbent methylene blue pyrolusite ore |
| url | https://www.mongoliajol.info/index.php/MJC/article/view/880 |
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