Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment
Chrome-tanned solid wastes from the tannery were used to extract collagen hydrolysate (CH) for the fabrication of electrospinning nanofibrous mat with polyvinyl alcohol (PVA) to remove cationic dye from wastewater. The nanofibrous mat was thermally crosslinked by heat curing to make it stable in neu...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Cleaner Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666790823000265 |
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| author | Abrar A. Sitab Fatema Tujjohra Taslim Ur Rashid Mohammed Mizanur Rahman |
| author_facet | Abrar A. Sitab Fatema Tujjohra Taslim Ur Rashid Mohammed Mizanur Rahman |
| author_sort | Abrar A. Sitab |
| collection | DOAJ |
| description | Chrome-tanned solid wastes from the tannery were used to extract collagen hydrolysate (CH) for the fabrication of electrospinning nanofibrous mat with polyvinyl alcohol (PVA) to remove cationic dye from wastewater. The nanofibrous mat was thermally crosslinked by heat curing to make it stable in neutral, acidic, and basic environments. The prepared nanofibrous mat was characterized by attenuated total reflectance infrared spectroscopy (ATR-IR), thermogravimetry (TGA), X-ray diffraction (XRD), and water dissolution properties. The detailed experimental results revealed that the nanomat prepared from CH: PVA (2:3) yielded better stability in an aqueous solution after thermal crosslinking. The nanofibrous mat was used as adsorbent and its adsorption properties were evaluated from the adsorption behaviour of methylene blue (MB), a common cationic dye. The adsorption results demonstrated that the nanomat showed maximum adsorption capacity of 99.9 mg g−1 with 88.8% removal efficiency at pH 12. The adsorption parameters were optimized and revealed to be highly pH sensitive, with 12.0 being the optimum pH for the highest dye removal. The experimental results revealed that the adsorption capacity of the nanofibrous mat grew with increasing initial dye concentration and decreased with increasing adsorbent doses. The thermodynamic study indicated that the adsorption kinetics (R2 > 0.99) followed pseudo-second-order equation, and the equilibrium data was the best suited by the Langmuir model (R2 > 0.99). On the other hand, the electrospun nanofibrous mat showed significantly better adsorption than the prepared CH-PVA composite film. The results for cationic dye adsorption suggest that the potential broader applications of collagen hydrolysate-based nanofibrous mat for pollution control may include its use as potential adsorbent for wastewater treatment. |
| first_indexed | 2024-04-09T17:19:30Z |
| format | Article |
| id | doaj.art-7ced3176efe0405c9228fa0a83771878 |
| institution | Directory Open Access Journal |
| issn | 2666-7908 |
| language | English |
| last_indexed | 2024-04-09T17:19:30Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cleaner Engineering and Technology |
| spelling | doaj.art-7ced3176efe0405c9228fa0a837718782023-04-19T04:23:28ZengElsevierCleaner Engineering and Technology2666-79082023-04-0113100621Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatmentAbrar A. Sitab0Fatema Tujjohra1Taslim Ur Rashid2Mohammed Mizanur Rahman3Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, 1000, BangladeshInstitute of Leather Engineering and Technology, University of Dhaka, Dhaka, 1209, BangladeshDepartment of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, 1000, BangladeshDepartment of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, 1000, Bangladesh; Institute of Leather Engineering and Technology, University of Dhaka, Dhaka, 1209, Bangladesh; Corresponding author. Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, 1000, Bangladesh.Chrome-tanned solid wastes from the tannery were used to extract collagen hydrolysate (CH) for the fabrication of electrospinning nanofibrous mat with polyvinyl alcohol (PVA) to remove cationic dye from wastewater. The nanofibrous mat was thermally crosslinked by heat curing to make it stable in neutral, acidic, and basic environments. The prepared nanofibrous mat was characterized by attenuated total reflectance infrared spectroscopy (ATR-IR), thermogravimetry (TGA), X-ray diffraction (XRD), and water dissolution properties. The detailed experimental results revealed that the nanomat prepared from CH: PVA (2:3) yielded better stability in an aqueous solution after thermal crosslinking. The nanofibrous mat was used as adsorbent and its adsorption properties were evaluated from the adsorption behaviour of methylene blue (MB), a common cationic dye. The adsorption results demonstrated that the nanomat showed maximum adsorption capacity of 99.9 mg g−1 with 88.8% removal efficiency at pH 12. The adsorption parameters were optimized and revealed to be highly pH sensitive, with 12.0 being the optimum pH for the highest dye removal. The experimental results revealed that the adsorption capacity of the nanofibrous mat grew with increasing initial dye concentration and decreased with increasing adsorbent doses. The thermodynamic study indicated that the adsorption kinetics (R2 > 0.99) followed pseudo-second-order equation, and the equilibrium data was the best suited by the Langmuir model (R2 > 0.99). On the other hand, the electrospun nanofibrous mat showed significantly better adsorption than the prepared CH-PVA composite film. The results for cationic dye adsorption suggest that the potential broader applications of collagen hydrolysate-based nanofibrous mat for pollution control may include its use as potential adsorbent for wastewater treatment.http://www.sciencedirect.com/science/article/pii/S2666790823000265Leather trimming wastesElectrospun nanomatAdsorptionMethylene blueThermal crosslinking |
| spellingShingle | Abrar A. Sitab Fatema Tujjohra Taslim Ur Rashid Mohammed Mizanur Rahman Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment Cleaner Engineering and Technology Leather trimming wastes Electrospun nanomat Adsorption Methylene blue Thermal crosslinking |
| title | Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment |
| title_full | Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment |
| title_fullStr | Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment |
| title_full_unstemmed | Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment |
| title_short | Thermally crosslinked electrospun nanofibrous mat from chrome-tanned solid wastes for cationic dye adsorption in wastewater treatment |
| title_sort | thermally crosslinked electrospun nanofibrous mat from chrome tanned solid wastes for cationic dye adsorption in wastewater treatment |
| topic | Leather trimming wastes Electrospun nanomat Adsorption Methylene blue Thermal crosslinking |
| url | http://www.sciencedirect.com/science/article/pii/S2666790823000265 |
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