Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation
Corn husk waste (CHW) was evaluated as an alternative simple treatment strategy to remove methylene blue dyes (MB). Various experimental factors, such as pH, concentration, contact time, and temperature, were studied during the adsorption process. Optimum conditions were obtained at pH 6, initial co...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918523000926 |
| _version_ | 1797350918983778304 |
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| author | Tuti Handayani Emriadi Deswati Putri Ramadhani Rahmiana Zein |
| author_facet | Tuti Handayani Emriadi Deswati Putri Ramadhani Rahmiana Zein |
| author_sort | Tuti Handayani |
| collection | DOAJ |
| description | Corn husk waste (CHW) was evaluated as an alternative simple treatment strategy to remove methylene blue dyes (MB). Various experimental factors, such as pH, concentration, contact time, and temperature, were studied during the adsorption process. Optimum conditions were obtained at pH 6, initial concentration of 800 mgL−1, contact time of 60 min, and temperature 298 K with an adsorption capacity of 41.06 mgg−1. The kinetics study was analyzed using pseudo-first-order, pseudo-second-order, intra-particle diffusion, and Elovich models. Moreover, the pseudo-second-order process model can characterize the MB chemisorption kinetics. The experimental results were fitted to the Langmuir isotherm model. The obtained thermodynamic parameters (ΔHo,ΔSo,ΔGo) revealed that MB adsorption was spontaneous and exothermic. The optimum conditions for removing MB on laboratory wastewater was 99.79 %, while for MB on batik industry water was 51.40 %. CHW had an excellent capability to be used for 4 times cycle. |
| first_indexed | 2024-03-08T12:52:01Z |
| format | Article |
| id | doaj.art-148d1642891347228f15fa5f768ffb43 |
| institution | Directory Open Access Journal |
| issn | 1026-9185 |
| language | English |
| last_indexed | 2024-03-08T12:52:01Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj.art-148d1642891347228f15fa5f768ffb432024-01-20T04:44:28ZengElsevierSouth African Journal of Chemical Engineering1026-91852024-01-01471527Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluationTuti Handayani0 Emriadi1 Deswati2Putri Ramadhani3Rahmiana Zein4Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Limau Manis, Padang, West Sumatera 25163, Indonesia; Department of Pharmacy, Fort De Kock University, Soekarno Hatta Street Number 11, Bukittinggi, West Sumatera 26117, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Limau Manis, Padang, West Sumatera 25163, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Limau Manis, Padang, West Sumatera 25163, IndonesiaResearch Center for Chemistry, National Research and Innovation Agency of Indonesia, Jakarta 10340, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Limau Manis, Padang, West Sumatera 25163, Indonesia; Corresponding author.Corn husk waste (CHW) was evaluated as an alternative simple treatment strategy to remove methylene blue dyes (MB). Various experimental factors, such as pH, concentration, contact time, and temperature, were studied during the adsorption process. Optimum conditions were obtained at pH 6, initial concentration of 800 mgL−1, contact time of 60 min, and temperature 298 K with an adsorption capacity of 41.06 mgg−1. The kinetics study was analyzed using pseudo-first-order, pseudo-second-order, intra-particle diffusion, and Elovich models. Moreover, the pseudo-second-order process model can characterize the MB chemisorption kinetics. The experimental results were fitted to the Langmuir isotherm model. The obtained thermodynamic parameters (ΔHo,ΔSo,ΔGo) revealed that MB adsorption was spontaneous and exothermic. The optimum conditions for removing MB on laboratory wastewater was 99.79 %, while for MB on batik industry water was 51.40 %. CHW had an excellent capability to be used for 4 times cycle.http://www.sciencedirect.com/science/article/pii/S1026918523000926AdsorptionCorn husk wasteLow-costMethylene blueWaste |
| spellingShingle | Tuti Handayani Emriadi Deswati Putri Ramadhani Rahmiana Zein Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation South African Journal of Chemical Engineering Adsorption Corn husk waste Low-cost Methylene blue Waste |
| title | Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation |
| title_full | Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation |
| title_fullStr | Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation |
| title_full_unstemmed | Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation |
| title_short | Modelling studies of methylene blue dye removal using activated corn husk waste: Isotherm, kinetic and thermodynamic evaluation |
| title_sort | modelling studies of methylene blue dye removal using activated corn husk waste isotherm kinetic and thermodynamic evaluation |
| topic | Adsorption Corn husk waste Low-cost Methylene blue Waste |
| url | http://www.sciencedirect.com/science/article/pii/S1026918523000926 |
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