Removal of cationic dyes from a synthetic effluent using a calcium surfactant
The present study aimed to evaluate the removal efficiency of two types of cationic dyes of different classes – methylene blue (MB) and malachite green (MG) – from a synthetic effluent using a calcium surfactant (CaSF) originated from used frying soybean oil. The Fourier Transform Infrared Spectrosc...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-03-01
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| Series: | Water Practice and Technology |
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| Online Access: | http://wpt.iwaponline.com/content/18/3/647 |
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| author | Yago Neco Teixeira Francisco José de Paula Filho Vinícius Pereira Bacurau Jorge Marcell Coelho Menezes Daniel Bernardes Silva Jober de Queiroz dos Santos Raimundo Nonato Pereira Teixeira João Victor Serra Nunes |
| author_facet | Yago Neco Teixeira Francisco José de Paula Filho Vinícius Pereira Bacurau Jorge Marcell Coelho Menezes Daniel Bernardes Silva Jober de Queiroz dos Santos Raimundo Nonato Pereira Teixeira João Victor Serra Nunes |
| author_sort | Yago Neco Teixeira |
| collection | DOAJ |
| description | The present study aimed to evaluate the removal efficiency of two types of cationic dyes of different classes – methylene blue (MB) and malachite green (MG) – from a synthetic effluent using a calcium surfactant (CaSF) originated from used frying soybean oil. The Fourier Transform Infrared Spectroscopy (FTIR) spectra showed that the functional groups present on the surface of CaSF can form surface complexes or bonds with the dye molecules and, consequently, promote their adsorption. The adsorption kinetics studies indicated that the equilibrium point of the process is reached in 90 min for both dyes. Equilibrium studies indicated that the adsorption isotherm models that best fit MB and MG were the Langmuir and the Dubinin–Radushkevich models, respectively. The maximum adsorption capacities of MB and MG, according to the Langmuir model, were 199 and 123 mg·g−1, respectively. In the sight of the high MB and MG removal efficiency (84 and 100%, respectively), the use of CaSF is an excellent alternative for the treatment of effluents contaminated by cationic dyes. The adsorption–desorption cycle studies showed that CaSF maintains a good dye removal efficiency for up to three cycles.
HIGHLIGHTS
Calcium surfactant (CaSF) was manufactured from the frying soybean oil residues.;
CaSF is a good adsorbent for cationic dyes.;
CaSF was used to remove methylene blue (MB) and malachite green (MG) from synthetic effluent.;
CaSF has a high adsorption capacity (MB – 199 mg g−1; MG – 123 mg g−1).;
CaSF removed 84% of MB and 100% of MG.; |
| first_indexed | 2024-04-09T19:03:40Z |
| format | Article |
| id | doaj.art-7382a5645ecf4a5d8194e2b20ec84318 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-04-09T19:03:40Z |
| publishDate | 2023-03-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-7382a5645ecf4a5d8194e2b20ec843182023-04-07T14:48:50ZengIWA PublishingWater Practice and Technology1751-231X2023-03-0118364766410.2166/wpt.2023.021021Removal of cationic dyes from a synthetic effluent using a calcium surfactantYago Neco Teixeira0Francisco José de Paula Filho1Vinícius Pereira Bacurau2Jorge Marcell Coelho Menezes3Daniel Bernardes Silva4Jober de Queiroz dos Santos5Raimundo Nonato Pereira Teixeira6João Victor Serra Nunes7 Science and Technology Center, Federal University of Cariri, Av. Ten. Raimundo Rocha, 1639, Juazeiro do Norte, Ceará 63048-080, Brazil Science and Technology Center, Federal University of Cariri, Av. Ten. Raimundo Rocha, 1639, Juazeiro do Norte, Ceará 63048-080, Brazil Materials Engineering Department, Federal University of São Carlos, Rod. Washington Luiz, 235, São Carlos, São Paulo 13565-905, Brazil Science and Technology Center, Federal University of Cariri, Av. Ten. Raimundo Rocha, 1639, Juazeiro do Norte, Ceará 63048-080, Brazil Science and Technology Center, Federal University of Cariri, Av. Ten. Raimundo Rocha, 1639, Juazeiro do Norte, Ceará 63048-080, Brazil Science and Technology Center, Federal University of Cariri, Av. Ten. Raimundo Rocha, 1639, Juazeiro do Norte, Ceará 63048-080, Brazil Biological Chemistry Department, Regional University of Cariri, R. Cel. Antonio Luis, 1161, Crato, Ceará 63105-000, Brazil Physics Department, Federal University of Ceará, Pici Campus, 928, Fortaleza, Ceará 60440-900, Brazil The present study aimed to evaluate the removal efficiency of two types of cationic dyes of different classes – methylene blue (MB) and malachite green (MG) – from a synthetic effluent using a calcium surfactant (CaSF) originated from used frying soybean oil. The Fourier Transform Infrared Spectroscopy (FTIR) spectra showed that the functional groups present on the surface of CaSF can form surface complexes or bonds with the dye molecules and, consequently, promote their adsorption. The adsorption kinetics studies indicated that the equilibrium point of the process is reached in 90 min for both dyes. Equilibrium studies indicated that the adsorption isotherm models that best fit MB and MG were the Langmuir and the Dubinin–Radushkevich models, respectively. The maximum adsorption capacities of MB and MG, according to the Langmuir model, were 199 and 123 mg·g−1, respectively. In the sight of the high MB and MG removal efficiency (84 and 100%, respectively), the use of CaSF is an excellent alternative for the treatment of effluents contaminated by cationic dyes. The adsorption–desorption cycle studies showed that CaSF maintains a good dye removal efficiency for up to three cycles. HIGHLIGHTS Calcium surfactant (CaSF) was manufactured from the frying soybean oil residues.; CaSF is a good adsorbent for cationic dyes.; CaSF was used to remove methylene blue (MB) and malachite green (MG) from synthetic effluent.; CaSF has a high adsorption capacity (MB – 199 mg g−1; MG – 123 mg g−1).; CaSF removed 84% of MB and 100% of MG.;http://wpt.iwaponline.com/content/18/3/647adsorptiondyesmalachite greenmethylene bluesurfactants |
| spellingShingle | Yago Neco Teixeira Francisco José de Paula Filho Vinícius Pereira Bacurau Jorge Marcell Coelho Menezes Daniel Bernardes Silva Jober de Queiroz dos Santos Raimundo Nonato Pereira Teixeira João Victor Serra Nunes Removal of cationic dyes from a synthetic effluent using a calcium surfactant Water Practice and Technology adsorption dyes malachite green methylene blue surfactants |
| title | Removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| title_full | Removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| title_fullStr | Removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| title_full_unstemmed | Removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| title_short | Removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| title_sort | removal of cationic dyes from a synthetic effluent using a calcium surfactant |
| topic | adsorption dyes malachite green methylene blue surfactants |
| url | http://wpt.iwaponline.com/content/18/3/647 |
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