Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study
Water pollution has generated the need to develop technologies to remove industrial pollutants. Adsorption has been recognized as one of the most effective techniques for effluent remediation. In this study, parts (stem and leaves) of a problematic aquatic weed, the water hyacinth (<i>Eichhorn...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/13/2732 |
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| author | Marcelo T. Carneiro Ana Z. B. Barros Alan I. S. Morais André L. F. Carvalho Melo Roosevelt D. S. Bezerra Josy A. Osajima Edson C. Silva-Filho |
| author_facet | Marcelo T. Carneiro Ana Z. B. Barros Alan I. S. Morais André L. F. Carvalho Melo Roosevelt D. S. Bezerra Josy A. Osajima Edson C. Silva-Filho |
| author_sort | Marcelo T. Carneiro |
| collection | DOAJ |
| description | Water pollution has generated the need to develop technologies to remove industrial pollutants. Adsorption has been recognized as one of the most effective techniques for effluent remediation. In this study, parts (stem and leaves) of a problematic aquatic weed, the water hyacinth (<i>Eichhornia crassipes</i>), were separated to produce a bioadsorbent. The objective was to evaluate the adsorption of a cationic dye, methylene blue (MB), in an aqueous solution of the biomass from different parts of the water hyacinth (<i>Eichhornia crassipes</i>) plants. The materials were characterized through techniques of infrared spectroscopy, scanning electron microscopy, X-ray diffractometry, and thermogravimetric analysis, before and after the material adsorption. Water hyacinth biomasses presented adsorption capacity above 89%, and the kinetics was faster for stem biomass. The kinetic study found that the adsorption process is better described by the pseudo-second-order model, and the adjustments of the isotherm experimental data indicated that both materials are favorable for adsorption. Therefore, water hyacinth bioadsorbent represents a renewable resource with potential for effluent treatment. |
| first_indexed | 2024-03-09T03:56:43Z |
| format | Article |
| id | doaj.art-9e8b3b21e3cd42fc9d85bea714d19b26 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T03:56:43Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-9e8b3b21e3cd42fc9d85bea714d19b262023-12-03T14:19:19ZengMDPI AGPolymers2073-43602022-07-011413273210.3390/polym14132732Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal StudyMarcelo T. Carneiro0Ana Z. B. Barros1Alan I. S. Morais2André L. F. Carvalho Melo3Roosevelt D. S. Bezerra4Josy A. Osajima5Edson C. Silva-Filho6Federal Institute of Piauí, Floriano Campus, Floriano 64808-475, PI, BrazilInterdisciplinary Laboratory for Advanced Materials, Teresina 64049-550, PI, BrazilInterdisciplinary Laboratory for Advanced Materials, Teresina 64049-550, PI, BrazilFederal Institute of Piauí, Floriano Campus, Floriano 64808-475, PI, BrazilFederal Institute of Piauí, Teresina-Central Campus, Teresina 64000-040, PI, BrazilInterdisciplinary Laboratory for Advanced Materials, Teresina 64049-550, PI, BrazilInterdisciplinary Laboratory for Advanced Materials, Teresina 64049-550, PI, BrazilWater pollution has generated the need to develop technologies to remove industrial pollutants. Adsorption has been recognized as one of the most effective techniques for effluent remediation. In this study, parts (stem and leaves) of a problematic aquatic weed, the water hyacinth (<i>Eichhornia crassipes</i>), were separated to produce a bioadsorbent. The objective was to evaluate the adsorption of a cationic dye, methylene blue (MB), in an aqueous solution of the biomass from different parts of the water hyacinth (<i>Eichhornia crassipes</i>) plants. The materials were characterized through techniques of infrared spectroscopy, scanning electron microscopy, X-ray diffractometry, and thermogravimetric analysis, before and after the material adsorption. Water hyacinth biomasses presented adsorption capacity above 89%, and the kinetics was faster for stem biomass. The kinetic study found that the adsorption process is better described by the pseudo-second-order model, and the adjustments of the isotherm experimental data indicated that both materials are favorable for adsorption. Therefore, water hyacinth bioadsorbent represents a renewable resource with potential for effluent treatment.https://www.mdpi.com/2073-4360/14/13/2732water hyacinth<i>Eichhornia crassipes</i>bioadsorbentremovalmethylene blue |
| spellingShingle | Marcelo T. Carneiro Ana Z. B. Barros Alan I. S. Morais André L. F. Carvalho Melo Roosevelt D. S. Bezerra Josy A. Osajima Edson C. Silva-Filho Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study Polymers water hyacinth <i>Eichhornia crassipes</i> bioadsorbent removal methylene blue |
| title | Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study |
| title_full | Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study |
| title_fullStr | Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study |
| title_full_unstemmed | Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study |
| title_short | Application of Water Hyacinth Biomass (<i>Eichhornia crassipes</i>) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study |
| title_sort | application of water hyacinth biomass i eichhornia crassipes i as an adsorbent for methylene blue dye from aqueous medium kinetic and isothermal study |
| topic | water hyacinth <i>Eichhornia crassipes</i> bioadsorbent removal methylene blue |
| url | https://www.mdpi.com/2073-4360/14/13/2732 |
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