Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment
Textile wastewater discharging to the surface water body is a great concern because it contains different pollutants such as dyes, organics, surfactants, inorganic salt and heavy metals. An effective low-cost treatment technology has not been developed yet. The objective of this study was to develop...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918522000373 |
| _version_ | 1818488588130582528 |
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| author | Hridoy Roy Tonima Rahman Prantika M.H Riyad Samrita Paul Md.Shahinoor Islam |
| author_facet | Hridoy Roy Tonima Rahman Prantika M.H Riyad Samrita Paul Md.Shahinoor Islam |
| author_sort | Hridoy Roy |
| collection | DOAJ |
| description | Textile wastewater discharging to the surface water body is a great concern because it contains different pollutants such as dyes, organics, surfactants, inorganic salt and heavy metals. An effective low-cost treatment technology has not been developed yet. The objective of this study was to develop a low-cost biochar adsorbent from was from a novel Citrus macroptera peels (CMPs) using a conventional slow pyrolysis process and applied it for the treatment of methylene blue dye in an aqueous solution. The chemical functionalities, surface textures, and crystallinity of the synthesized biochar were characterized by Fourier Transform-Infrared (FTIR) spectroscopy, Field Emission Scanning Electron Microscope (FESEM) analysis, and X-ray powder Diffraction (XRD), respectively. Different functional groups such as -COOH, OH, and R-OH, randomized porous structures with tunnel-like cracks were confirmed from the FTIR and FESEM, respectively. Typical non-linear disordered 3D carbon structure was predicted from the XRD. Response surface methodology (RSM) was performed with the central composite design (CCD) technique, and analytical tuning of the process variables, e.g., pH, contact time, and methylene blue concentration, was also carried out to validate the RSM optimization. The adsorption isotherms and kinetics were investigated, where isotherm and kinetics followed Langmuir and pseudo 2nd order models. RSM results at pH 8 showed 85% of dye removal within 75 min of contact time. According to the Langmuir isotherm model, the maximum adsorption capacity, qm was 139.7 mg/g, which aligned with the experimental value. The present work shows that the low-cost CMPs-derived biochar has the potential for dye removal from industrial effluents. |
| first_indexed | 2024-12-10T16:53:09Z |
| format | Article |
| id | doaj.art-19c57019e84b49d3b07dfce3c8ea284c |
| institution | Directory Open Access Journal |
| issn | 1026-9185 |
| language | English |
| last_indexed | 2024-12-10T16:53:09Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj.art-19c57019e84b49d3b07dfce3c8ea284c2022-12-22T01:40:50ZengElsevierSouth African Journal of Chemical Engineering1026-91852022-07-0141129139Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatmentHridoy Roy0Tonima Rahman Prantika1M.H Riyad2Samrita Paul3Md.Shahinoor Islam4Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, BangladeshDepartment of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, BangladeshDepartment of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, BangladeshDepartment of Civil Engineering, Khulna University of Engineering and Technology, Khulna 9203, BangladeshDepartment of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh; Corresponding author.Textile wastewater discharging to the surface water body is a great concern because it contains different pollutants such as dyes, organics, surfactants, inorganic salt and heavy metals. An effective low-cost treatment technology has not been developed yet. The objective of this study was to develop a low-cost biochar adsorbent from was from a novel Citrus macroptera peels (CMPs) using a conventional slow pyrolysis process and applied it for the treatment of methylene blue dye in an aqueous solution. The chemical functionalities, surface textures, and crystallinity of the synthesized biochar were characterized by Fourier Transform-Infrared (FTIR) spectroscopy, Field Emission Scanning Electron Microscope (FESEM) analysis, and X-ray powder Diffraction (XRD), respectively. Different functional groups such as -COOH, OH, and R-OH, randomized porous structures with tunnel-like cracks were confirmed from the FTIR and FESEM, respectively. Typical non-linear disordered 3D carbon structure was predicted from the XRD. Response surface methodology (RSM) was performed with the central composite design (CCD) technique, and analytical tuning of the process variables, e.g., pH, contact time, and methylene blue concentration, was also carried out to validate the RSM optimization. The adsorption isotherms and kinetics were investigated, where isotherm and kinetics followed Langmuir and pseudo 2nd order models. RSM results at pH 8 showed 85% of dye removal within 75 min of contact time. According to the Langmuir isotherm model, the maximum adsorption capacity, qm was 139.7 mg/g, which aligned with the experimental value. The present work shows that the low-cost CMPs-derived biochar has the potential for dye removal from industrial effluents.http://www.sciencedirect.com/science/article/pii/S1026918522000373Citrus macropteraBiocharRSM analysisPorous surfaceIsothermkinetics |
| spellingShingle | Hridoy Roy Tonima Rahman Prantika M.H Riyad Samrita Paul Md.Shahinoor Islam Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment South African Journal of Chemical Engineering Citrus macroptera Biochar RSM analysis Porous surface Isotherm kinetics |
| title | Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment |
| title_full | Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment |
| title_fullStr | Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment |
| title_full_unstemmed | Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment |
| title_short | Synthesis, characterizations, and RSM analysis of Citrus macroptera peel derived biochar for textile dye treatment |
| title_sort | synthesis characterizations and rsm analysis of citrus macroptera peel derived biochar for textile dye treatment |
| topic | Citrus macroptera Biochar RSM analysis Porous surface Isotherm kinetics |
| url | http://www.sciencedirect.com/science/article/pii/S1026918522000373 |
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