Removal of crystal violet from aquatic environment by surfactant-modified dolomite
This paper presents the adsorption of crystal violet (CV+) from aqueous solution on surfactant-modified dolomite. Liquid phase batch operations were carried out to observe the effect of various experimental parameters such as initial dye concentration, adsorbent dosage, pH and NaCl concentration. Th...
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| Format: | Article |
| Language: | English |
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Iranian Research Organization for Science and Technology (IROST)
2016-09-01
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| Series: | Journal of Particle Science and Technology |
| Subjects: | |
| Online Access: | http://jpst.irost.ir/article_492_a7daf6809459a91c09101b92d2462ab7.pdf |
| _version_ | 1818566080942047232 |
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| author | Maryam Arabpour Ahmad Rahbar-Kelishami Reza Norouzbeigi |
| author_facet | Maryam Arabpour Ahmad Rahbar-Kelishami Reza Norouzbeigi |
| author_sort | Maryam Arabpour |
| collection | DOAJ |
| description | This paper presents the adsorption of crystal violet (CV+) from aqueous solution on surfactant-modified dolomite. Liquid phase batch operations were carried out to observe the effect of various experimental parameters such as initial dye concentration, adsorbent dosage, pH and NaCl concentration. The optimum conditions for these parameters were calculated by Taguchi method. Equilibrium isotherm data were analyzed according to Langmuir, Freundlich and Temkin equations. The experimental data fitted well to Freundlich adsorption model. The maximum adsorption capacities by Langmuir analysis were determined to be 49.261mg/g at 22℃ that indicates suitable performance by of this adsorbent. The pPseudo-first-order and, pseudo-second-order kinetics and the intraparticle diffusion models were also evaluated for the adsorption of CV+ onto surfactant-modified dolomite. The positive value of free energy change confirmed the nature of physisorption of dye onto adsorbent. |
| first_indexed | 2024-12-14T01:49:10Z |
| format | Article |
| id | doaj.art-309fcd4a1076434994995781bfbc7392 |
| institution | Directory Open Access Journal |
| issn | 2423-4087 2423-4079 |
| language | English |
| last_indexed | 2024-12-14T01:49:10Z |
| publishDate | 2016-09-01 |
| publisher | Iranian Research Organization for Science and Technology (IROST) |
| record_format | Article |
| series | Journal of Particle Science and Technology |
| spelling | doaj.art-309fcd4a1076434994995781bfbc73922022-12-21T23:21:26ZengIranian Research Organization for Science and Technology (IROST)Journal of Particle Science and Technology2423-40872423-40792016-09-012317318210.22104/jpst.2017.492492Removal of crystal violet from aquatic environment by surfactant-modified dolomiteMaryam Arabpour0Ahmad Rahbar-Kelishami1Reza Norouzbeigi2Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, IranDepartment of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, IranDepartment of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, IranThis paper presents the adsorption of crystal violet (CV+) from aqueous solution on surfactant-modified dolomite. Liquid phase batch operations were carried out to observe the effect of various experimental parameters such as initial dye concentration, adsorbent dosage, pH and NaCl concentration. The optimum conditions for these parameters were calculated by Taguchi method. Equilibrium isotherm data were analyzed according to Langmuir, Freundlich and Temkin equations. The experimental data fitted well to Freundlich adsorption model. The maximum adsorption capacities by Langmuir analysis were determined to be 49.261mg/g at 22℃ that indicates suitable performance by of this adsorbent. The pPseudo-first-order and, pseudo-second-order kinetics and the intraparticle diffusion models were also evaluated for the adsorption of CV+ onto surfactant-modified dolomite. The positive value of free energy change confirmed the nature of physisorption of dye onto adsorbent.http://jpst.irost.ir/article_492_a7daf6809459a91c09101b92d2462ab7.pdfAdsorptionCrystal violet (CV+)KineticsSurfactant-modified dolomiteTaguchi method |
| spellingShingle | Maryam Arabpour Ahmad Rahbar-Kelishami Reza Norouzbeigi Removal of crystal violet from aquatic environment by surfactant-modified dolomite Journal of Particle Science and Technology Adsorption Crystal violet (CV+) Kinetics Surfactant-modified dolomite Taguchi method |
| title | Removal of crystal violet from aquatic environment by surfactant-modified dolomite |
| title_full | Removal of crystal violet from aquatic environment by surfactant-modified dolomite |
| title_fullStr | Removal of crystal violet from aquatic environment by surfactant-modified dolomite |
| title_full_unstemmed | Removal of crystal violet from aquatic environment by surfactant-modified dolomite |
| title_short | Removal of crystal violet from aquatic environment by surfactant-modified dolomite |
| title_sort | removal of crystal violet from aquatic environment by surfactant modified dolomite |
| topic | Adsorption Crystal violet (CV+) Kinetics Surfactant-modified dolomite Taguchi method |
| url | http://jpst.irost.ir/article_492_a7daf6809459a91c09101b92d2462ab7.pdf |
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