Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process
Glucose can be isomerized into fructose and dehydrated into key platform biochemicals, following the “bio-refinery concept”. However, this process generates black and intractable substances called humin, which possess a polymeric furanic-type structure. In this study, glucose-derived humin (GDH) was...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/15/3268 |
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| author | Thakshila Nadeeshani Dharmapriya Ken-Lin Chang Po-Jung Huang |
| author_facet | Thakshila Nadeeshani Dharmapriya Ken-Lin Chang Po-Jung Huang |
| author_sort | Thakshila Nadeeshani Dharmapriya |
| collection | DOAJ |
| description | Glucose can be isomerized into fructose and dehydrated into key platform biochemicals, following the “bio-refinery concept”. However, this process generates black and intractable substances called humin, which possess a polymeric furanic-type structure. In this study, glucose-derived humin (GDH) was obtained by reacting D-glucose with an allylamine catalyst in a deep eutectic solvent medium, followed by a carbonization step. GDH was used as a low-cost, green, and reusable adsorbent for removing cationic methylene blue (MB) dye from water. The morphology of carbonized GDH differs from pristine GDH. The removal efficiencies of MB dye using pristine GDH and carbonized GDH were 52% and 97%, respectively. Temperature measurements indicated an exothermic process following pseudo-first-order kinetics, with adsorption behavior described by the Langmuir isotherm. The optimum parameters were predicted using the response surface methodology and found to be a reaction time of 600 min, an initial dye concentration of 50 ppm, and a GDH weight of 0.11 g with 98.7% desirability. The MB dye removal rate optimized through this model was 96.85%, which was in good agreement with the experimentally obtained value (92.49%). After 10 cycles, the MB removal rate remained above 80%, showcasing the potential for GDH reuse and cost-effective wastewater treatment. |
| first_indexed | 2024-03-11T00:18:19Z |
| format | Article |
| id | doaj.art-4bc571e86f634f8dbbb8f216f85aab7d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T00:18:19Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-4bc571e86f634f8dbbb8f216f85aab7d2023-11-18T23:28:50ZengMDPI AGPolymers2073-43602023-07-011515326810.3390/polym15153268Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the ProcessThakshila Nadeeshani Dharmapriya0Ken-Lin Chang1Po-Jung Huang2Institute of Environmental Engineering, College of Engineering, National Sun Yat-sen University, Kaohsiung 80432, TaiwanInstitute of Environmental Engineering, College of Engineering, National Sun Yat-sen University, Kaohsiung 80432, TaiwanDepartment of Chemical and Materials Engineering, National Central University, Taoyuan 320317, TaiwanGlucose can be isomerized into fructose and dehydrated into key platform biochemicals, following the “bio-refinery concept”. However, this process generates black and intractable substances called humin, which possess a polymeric furanic-type structure. In this study, glucose-derived humin (GDH) was obtained by reacting D-glucose with an allylamine catalyst in a deep eutectic solvent medium, followed by a carbonization step. GDH was used as a low-cost, green, and reusable adsorbent for removing cationic methylene blue (MB) dye from water. The morphology of carbonized GDH differs from pristine GDH. The removal efficiencies of MB dye using pristine GDH and carbonized GDH were 52% and 97%, respectively. Temperature measurements indicated an exothermic process following pseudo-first-order kinetics, with adsorption behavior described by the Langmuir isotherm. The optimum parameters were predicted using the response surface methodology and found to be a reaction time of 600 min, an initial dye concentration of 50 ppm, and a GDH weight of 0.11 g with 98.7% desirability. The MB dye removal rate optimized through this model was 96.85%, which was in good agreement with the experimentally obtained value (92.49%). After 10 cycles, the MB removal rate remained above 80%, showcasing the potential for GDH reuse and cost-effective wastewater treatment.https://www.mdpi.com/2073-4360/15/15/3268glucose-derived humindye removalresponse surface methodologyadsorptionpolymeric furanic-type structure |
| spellingShingle | Thakshila Nadeeshani Dharmapriya Ken-Lin Chang Po-Jung Huang Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process Polymers glucose-derived humin dye removal response surface methodology adsorption polymeric furanic-type structure |
| title | Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process |
| title_full | Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process |
| title_fullStr | Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process |
| title_full_unstemmed | Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process |
| title_short | Valorization of Glucose-Derived Humin as a Low-Cost, Green, Reusable Adsorbent for Dye Removal, and Modeling the Process |
| title_sort | valorization of glucose derived humin as a low cost green reusable adsorbent for dye removal and modeling the process |
| topic | glucose-derived humin dye removal response surface methodology adsorption polymeric furanic-type structure |
| url | https://www.mdpi.com/2073-4360/15/15/3268 |
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