The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water
Heavy metals in water are a serious environmental problem due to their accumulation and toxicity; there are several processes we can use to address this issue, but adsorption is the most popular due to its simplicity and efficiency. Polysaccharides such as cellulose have received attention as adsorb...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/13/2066 |
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| author | Diana Alonso-Segura Luis Hernández-García Jorge Menchaca-Arredondo Mario Sánchez Belén Chamorro-Garza Raquel Garza-Hernández |
| author_facet | Diana Alonso-Segura Luis Hernández-García Jorge Menchaca-Arredondo Mario Sánchez Belén Chamorro-Garza Raquel Garza-Hernández |
| author_sort | Diana Alonso-Segura |
| collection | DOAJ |
| description | Heavy metals in water are a serious environmental problem due to their accumulation and toxicity; there are several processes we can use to address this issue, but adsorption is the most popular due to its simplicity and efficiency. Polysaccharides such as cellulose have received attention as adsorbents for heavy metals, and cotton–chitosan composites (CCs) were developed here with nontoxic reagents such as carboxylic acids as crosslinkers and NaH<sub>2</sub>PO<sub>4</sub> as a catalyst to achieve chitosan covalent crosslinkage into oxidized cotton textiles with H<sub>2</sub>O<sub>2</sub>. The composites were characterized by fourier-transform infrared spectroscopy (FTIR), elemental analysis (EA), X-ray photoelectron spectroscopy (XPS), atomic-force and scanning electron microscopy (AFM and SEM), and tensile strength; the adsorption of lead ions (Pb) was evaluated with cotton–chitosan composites and quantified by microwave plasma atomic emission spectroscopy (MP-AES). The composites showed a maximum incorporation of chitosan of 27.62 mg per gram of cotton textile. A tensile strength analysis of the composite showed a Young’s modulus approximately 1 MPa higher than that of cotton textile. The adsorption of lead ions with composites in an aqueous solution at pH 5 and 25 °C was circa 74% after 6 h of contact, as determined by MP-AES. This work is an approach to demonstrate the potential of these polysaccharides, modified by “green” procedures to remove pollutants from water. |
| first_indexed | 2024-03-10T10:07:27Z |
| format | Article |
| id | doaj.art-584a7dd58cc14ba8856abeca0f814c33 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T10:07:27Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-584a7dd58cc14ba8856abeca0f814c332023-11-22T01:27:30ZengMDPI AGPolymers2073-43602021-06-011313206610.3390/polym13132066The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from WaterDiana Alonso-Segura0Luis Hernández-García1Jorge Menchaca-Arredondo2Mario Sánchez3Belén Chamorro-Garza4Raquel Garza-Hernández5Biotechnology Engineering Division, Universidad Tecnológica de Corregidora, Carretera Estatal 413, Sta. Barbara Km. 11.2, Coroneo 76900, MexicoInstituto Tecnológico de Nuevo León, Av. de la Alianza 507, Parque de Investigación e Innovación Tecnológica 66628, MexicoFacultad de Ciencias Físico Matemáticas, Universidad Autónoma de Nuevo León, Av. Universidad s/n, San Nicolás de los Garza 66455, MexicoCentro de Investigación en Materiales Avanzados, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica 66628, MexicoInstituto Tecnológico de Nuevo León, Av. de la Alianza 507, Parque de Investigación e Innovación Tecnológica 66628, MexicoCentro de Investigación en Materiales Avanzados, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica 66628, MexicoHeavy metals in water are a serious environmental problem due to their accumulation and toxicity; there are several processes we can use to address this issue, but adsorption is the most popular due to its simplicity and efficiency. Polysaccharides such as cellulose have received attention as adsorbents for heavy metals, and cotton–chitosan composites (CCs) were developed here with nontoxic reagents such as carboxylic acids as crosslinkers and NaH<sub>2</sub>PO<sub>4</sub> as a catalyst to achieve chitosan covalent crosslinkage into oxidized cotton textiles with H<sub>2</sub>O<sub>2</sub>. The composites were characterized by fourier-transform infrared spectroscopy (FTIR), elemental analysis (EA), X-ray photoelectron spectroscopy (XPS), atomic-force and scanning electron microscopy (AFM and SEM), and tensile strength; the adsorption of lead ions (Pb) was evaluated with cotton–chitosan composites and quantified by microwave plasma atomic emission spectroscopy (MP-AES). The composites showed a maximum incorporation of chitosan of 27.62 mg per gram of cotton textile. A tensile strength analysis of the composite showed a Young’s modulus approximately 1 MPa higher than that of cotton textile. The adsorption of lead ions with composites in an aqueous solution at pH 5 and 25 °C was circa 74% after 6 h of contact, as determined by MP-AES. This work is an approach to demonstrate the potential of these polysaccharides, modified by “green” procedures to remove pollutants from water.https://www.mdpi.com/2073-4360/13/13/2066chitosancotton fibercompositelead |
| spellingShingle | Diana Alonso-Segura Luis Hernández-García Jorge Menchaca-Arredondo Mario Sánchez Belén Chamorro-Garza Raquel Garza-Hernández The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water Polymers chitosan cotton fiber composite lead |
| title | The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water |
| title_full | The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water |
| title_fullStr | The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water |
| title_full_unstemmed | The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water |
| title_short | The Development and Characterization of a Cotton–Chitosan Composite for Lead Removal from Water |
| title_sort | development and characterization of a cotton chitosan composite for lead removal from water |
| topic | chitosan cotton fiber composite lead |
| url | https://www.mdpi.com/2073-4360/13/13/2066 |
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