Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk
Present study explored the adsorptive characteristics of eosin Y and red X dyes from aqueous solution onto treated rice husk (TRH). Batch experiments were carried out to determine the influence of parameters likes initial pH, adsorbentdose, contact time and initial concentration on the removal of eo...
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| Format: | Article |
| Language: | English |
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Razi University
2018-03-01
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| Series: | Journal of Applied Research in Water and Wastewater |
| Subjects: | |
| Online Access: | https://arww.razi.ac.ir/article_866_d405e25ee25f1c105c5394335d22bcc7.pdf |
| _version_ | 1811252453523324928 |
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| author | Saideh Fatemeh Shafeii Darabi Nader Bahramifar Mohamad Ali Khalilzadeh |
| author_facet | Saideh Fatemeh Shafeii Darabi Nader Bahramifar Mohamad Ali Khalilzadeh |
| author_sort | Saideh Fatemeh Shafeii Darabi |
| collection | DOAJ |
| description | Present study explored the adsorptive characteristics of eosin Y and red X dyes from aqueous solution onto treated rice husk (TRH). Batch experiments were carried out to determine the influence of parameters likes initial pH, adsorbentdose, contact time and initial concentration on the removal of eosinY and red X. The adsorption kinetics of the two dyes on to TRH was found to follow pseudo-second-order kinetic model. The equilibrium data is successfullyfitted to the Freundlich and Langmuir adsorption isotherm for eosin Y and red X, respectively. The thermodynamic analysis indicated that the sorption process was endothermic for eosin Y and exothermic for red X and the negative value of change in Gibbs free energy indicated feasible and spontaneous adsorption for both of dyes. The removal percentage of dyeswas about 90% (q e= 31.72 mgg-1) for eosin Y and 93.44 % for red X(qe=32.44mgg-1). Overall, the present findings suggest that this environmentally friendly, efficient and low-cost adsorbent is useful for the removal of eosin Y and red X from aqueous solution. |
| first_indexed | 2024-04-12T16:34:50Z |
| format | Article |
| id | doaj.art-9a500d03e5e74c4c835efd92a1d6f11e |
| institution | Directory Open Access Journal |
| issn | 2476-6283 2476-6283 |
| language | English |
| last_indexed | 2024-04-12T16:34:50Z |
| publishDate | 2018-03-01 |
| publisher | Razi University |
| record_format | Article |
| series | Journal of Applied Research in Water and Wastewater |
| spelling | doaj.art-9a500d03e5e74c4c835efd92a1d6f11e2022-12-22T03:25:01ZengRazi UniversityJournal of Applied Research in Water and Wastewater2476-62832476-62832018-03-015139239810.22126/arww.2018.866866Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice huskSaideh Fatemeh Shafeii Darabi0Nader Bahramifar1Mohamad Ali Khalilzadeh2Department of Applied chemistry, Islamic Azad University Qaemshar Branch, Iran.Department of chemistry, Payam Noor University (PNU), Tehran, Iran.Department of Applied chemistry, Islamic Azad University Qaemshar Branch, Iran.Present study explored the adsorptive characteristics of eosin Y and red X dyes from aqueous solution onto treated rice husk (TRH). Batch experiments were carried out to determine the influence of parameters likes initial pH, adsorbentdose, contact time and initial concentration on the removal of eosinY and red X. The adsorption kinetics of the two dyes on to TRH was found to follow pseudo-second-order kinetic model. The equilibrium data is successfullyfitted to the Freundlich and Langmuir adsorption isotherm for eosin Y and red X, respectively. The thermodynamic analysis indicated that the sorption process was endothermic for eosin Y and exothermic for red X and the negative value of change in Gibbs free energy indicated feasible and spontaneous adsorption for both of dyes. The removal percentage of dyeswas about 90% (q e= 31.72 mgg-1) for eosin Y and 93.44 % for red X(qe=32.44mgg-1). Overall, the present findings suggest that this environmentally friendly, efficient and low-cost adsorbent is useful for the removal of eosin Y and red X from aqueous solution.https://arww.razi.ac.ir/article_866_d405e25ee25f1c105c5394335d22bcc7.pdfEosin YRed XTreated Rice huskAdsorptionthermodynamic |
| spellingShingle | Saideh Fatemeh Shafeii Darabi Nader Bahramifar Mohamad Ali Khalilzadeh Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk Journal of Applied Research in Water and Wastewater Eosin Y Red X Treated Rice husk Adsorption thermodynamic |
| title | Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk |
| title_full | Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk |
| title_fullStr | Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk |
| title_full_unstemmed | Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk |
| title_short | Equilibrium, thermodynamic and kinetics studies on adsorption of eosin Y and red X-GRL from aqueous solution by treated rice husk |
| title_sort | equilibrium thermodynamic and kinetics studies on adsorption of eosin y and red x grl from aqueous solution by treated rice husk |
| topic | Eosin Y Red X Treated Rice husk Adsorption thermodynamic |
| url | https://arww.razi.ac.ir/article_866_d405e25ee25f1c105c5394335d22bcc7.pdf |
| work_keys_str_mv | AT saidehfatemehshafeiidarabi equilibriumthermodynamicandkineticsstudiesonadsorptionofeosinyandredxgrlfromaqueoussolutionbytreatedricehusk AT naderbahramifar equilibriumthermodynamicandkineticsstudiesonadsorptionofeosinyandredxgrlfromaqueoussolutionbytreatedricehusk AT mohamadalikhalilzadeh equilibriumthermodynamicandkineticsstudiesonadsorptionofeosinyandredxgrlfromaqueoussolutionbytreatedricehusk |