Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment
In the present study, nanocellulose was extracted from palm leaves to synthesize nanocellulose/chitosan nanocomposites for the removal of dyes from textile industrial wastewater. Nanocellulose is of interest in water purification technologies because of its high surface area and versatile surface ch...
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MDPI AG
2022-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/9/1852 |
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| author | Mohamed Bassyouni Mohamed Sh. Zoromba Mohamed H. Abdel-Aziz Ibrahim Mosly |
| author_facet | Mohamed Bassyouni Mohamed Sh. Zoromba Mohamed H. Abdel-Aziz Ibrahim Mosly |
| author_sort | Mohamed Bassyouni |
| collection | DOAJ |
| description | In the present study, nanocellulose was extracted from palm leaves to synthesize nanocellulose/chitosan nanocomposites for the removal of dyes from textile industrial wastewater. Nanocellulose is of interest in water purification technologies because of its high surface area and versatile surface chemistry. Following bleach, alkali, and acid treatments on palm leaves, nanocellulose is obtained as a white powder. The produced nanocellulose was investigated. The adsorption capacity of chitosan, nanocellulose, and novel synthetic nanocellulose/chitosan microbeads (CCMB) for direct blue 78 dye (DB78) removal was studied. A series of batch experiments were conducted in terms of adsorbent concentration, mixing time, pH, dye initial concentration, and nanocellulose concentration in synthetic microbeads. The CCMB was characterized by using physicochemical analysis, namely Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), zeta potential analysis, and Fourier-transform infrared spectroscopy (FTIR). It was found that the surface area of synthetic CCMB is 10.4 m<sup>2</sup>/g, with a positive net surface charge. The adsorption tests showed that the dye removal efficiency increases with an increasing adsorbent concentration. The maximum removal efficiencies were 91.5% and 88.4%, using 14 and 9 g/L of CCMB-0.25:1. The initial dye concentrations were 50 and 100 mg/L under acidic conditions (pH = 3.5) and an optimal mixing time of 120 min. The equilibrium studies for CCMB-0.25:1 showed that the equilibrium data were best fitted to Langmuir isothermal model with R<sup>2</sup> = 0.99. These results revealed that nanocellulose/chitosan microbeads are an effective eco-adsorbent for the removal of direct blue 78 dye and provide a new platform for dye removal. |
| first_indexed | 2024-03-10T03:46:58Z |
| format | Article |
| id | doaj.art-7a8e1c36c86f454ca3f1e0994fce906f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T03:46:58Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7a8e1c36c86f454ca3f1e0994fce906f2023-11-23T09:07:12ZengMDPI AGPolymers2073-43602022-04-01149185210.3390/polym14091852Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater TreatmentMohamed Bassyouni0Mohamed Sh. Zoromba1Mohamed H. Abdel-Aziz2Ibrahim Mosly3Department of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911, Saudi ArabiaDepartment of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911, Saudi ArabiaDepartment of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911, Saudi ArabiaDepartment of Civil Engineering, King Abdulaziz University, Rabigh 21911, Saudi ArabiaIn the present study, nanocellulose was extracted from palm leaves to synthesize nanocellulose/chitosan nanocomposites for the removal of dyes from textile industrial wastewater. Nanocellulose is of interest in water purification technologies because of its high surface area and versatile surface chemistry. Following bleach, alkali, and acid treatments on palm leaves, nanocellulose is obtained as a white powder. The produced nanocellulose was investigated. The adsorption capacity of chitosan, nanocellulose, and novel synthetic nanocellulose/chitosan microbeads (CCMB) for direct blue 78 dye (DB78) removal was studied. A series of batch experiments were conducted in terms of adsorbent concentration, mixing time, pH, dye initial concentration, and nanocellulose concentration in synthetic microbeads. The CCMB was characterized by using physicochemical analysis, namely Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), zeta potential analysis, and Fourier-transform infrared spectroscopy (FTIR). It was found that the surface area of synthetic CCMB is 10.4 m<sup>2</sup>/g, with a positive net surface charge. The adsorption tests showed that the dye removal efficiency increases with an increasing adsorbent concentration. The maximum removal efficiencies were 91.5% and 88.4%, using 14 and 9 g/L of CCMB-0.25:1. The initial dye concentrations were 50 and 100 mg/L under acidic conditions (pH = 3.5) and an optimal mixing time of 120 min. The equilibrium studies for CCMB-0.25:1 showed that the equilibrium data were best fitted to Langmuir isothermal model with R<sup>2</sup> = 0.99. These results revealed that nanocellulose/chitosan microbeads are an effective eco-adsorbent for the removal of direct blue 78 dye and provide a new platform for dye removal.https://www.mdpi.com/2073-4360/14/9/1852nanocellulosechitosanmicrobeadsadsorptionisothermal modelsdirect dye removal |
| spellingShingle | Mohamed Bassyouni Mohamed Sh. Zoromba Mohamed H. Abdel-Aziz Ibrahim Mosly Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment Polymers nanocellulose chitosan microbeads adsorption isothermal models direct dye removal |
| title | Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment |
| title_full | Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment |
| title_fullStr | Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment |
| title_full_unstemmed | Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment |
| title_short | Extraction of Nanocellulose for Eco-Friendly Biocomposite Adsorbent for Wastewater Treatment |
| title_sort | extraction of nanocellulose for eco friendly biocomposite adsorbent for wastewater treatment |
| topic | nanocellulose chitosan microbeads adsorption isothermal models direct dye removal |
| url | https://www.mdpi.com/2073-4360/14/9/1852 |
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