Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution
Mesoporous silica nanoparticles (MSN) were synthesized using rice husk (RH) as the raw material via sol-gel pathway using cetyltrimethylammonium bromide (CTAB) as the structure directing agent. Silica nanoparticles were successfully functionalized with 3-aminopropyl triethoxysilane (APTES) via in-si...
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Elsevier
2021-01-01
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| Series: | Current Research in Green and Sustainable Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666086521000631 |
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| author | Leshan Usgodaarachchi Charitha Thambiliyagodage Ramanee Wijesekera Martin G. Bakker |
| author_facet | Leshan Usgodaarachchi Charitha Thambiliyagodage Ramanee Wijesekera Martin G. Bakker |
| author_sort | Leshan Usgodaarachchi |
| collection | DOAJ |
| description | Mesoporous silica nanoparticles (MSN) were synthesized using rice husk (RH) as the raw material via sol-gel pathway using cetyltrimethylammonium bromide (CTAB) as the structure directing agent. Silica nanoparticles were successfully functionalized with 3-aminopropyl triethoxysilane (APTES) via in-situ and post functionalization methods. Synthesized nanoparticles were characterized by X-Ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) surface area analysis. The amorphous silica nanoparticles were of 50–60 nm in diameter with a surface area of 150 m2/g, pore volume of 0.237 cm3/g and average pore size of 3.62 nm. Morphology and textural parameters were changed upon functionalization. The equilibrium adsorption capacity of MSN-A (4.94 mg/g) to adsorb 10 mg/L methylene blue (MB), was higher than in amine functionalized silica nanoparticles. The influence of experimental factors such as pH, adsorbent dosage, and initial MB concentration on adsorption of MB to MSN-A were studied. The equilibrium data for MB adsorption on mesoporous silica nanoparticles well fitted to Langmuir equation, with a maximum monolayer capacity of 19.26 mg/g. The adsorption of MB could be best described by the pseudo-second order model. The results indicate that MSN-A is a potential mesoporous material fabricated by cheap natural resources to remove MB from aqueous solutions. |
| first_indexed | 2024-12-22T01:32:31Z |
| format | Article |
| id | doaj.art-305a34a2824e4e9e8eb5098660dda782 |
| institution | Directory Open Access Journal |
| issn | 2666-0865 |
| language | English |
| last_indexed | 2024-12-22T01:32:31Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Green and Sustainable Chemistry |
| spelling | doaj.art-305a34a2824e4e9e8eb5098660dda7822022-12-21T18:43:28ZengElsevierCurrent Research in Green and Sustainable Chemistry2666-08652021-01-014100116Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solutionLeshan Usgodaarachchi0Charitha Thambiliyagodage1Ramanee Wijesekera2Martin G. Bakker3Department of Materials Engineering, Faculty of Engineering, Sri Lanka Institute of Information Technology, Malabe, Sri LankaSchool of Science and Education, Faculty of Humanities and Sciences, Sri Lanka Institute of Information Technology, Malabe, Sri Lanka; Corresponding author.Department of Chemistry, Faculty of Science, University of Colombo, Colombo, 3, Sri LankaDepartment of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL, 35387-0336, USAMesoporous silica nanoparticles (MSN) were synthesized using rice husk (RH) as the raw material via sol-gel pathway using cetyltrimethylammonium bromide (CTAB) as the structure directing agent. Silica nanoparticles were successfully functionalized with 3-aminopropyl triethoxysilane (APTES) via in-situ and post functionalization methods. Synthesized nanoparticles were characterized by X-Ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) surface area analysis. The amorphous silica nanoparticles were of 50–60 nm in diameter with a surface area of 150 m2/g, pore volume of 0.237 cm3/g and average pore size of 3.62 nm. Morphology and textural parameters were changed upon functionalization. The equilibrium adsorption capacity of MSN-A (4.94 mg/g) to adsorb 10 mg/L methylene blue (MB), was higher than in amine functionalized silica nanoparticles. The influence of experimental factors such as pH, adsorbent dosage, and initial MB concentration on adsorption of MB to MSN-A were studied. The equilibrium data for MB adsorption on mesoporous silica nanoparticles well fitted to Langmuir equation, with a maximum monolayer capacity of 19.26 mg/g. The adsorption of MB could be best described by the pseudo-second order model. The results indicate that MSN-A is a potential mesoporous material fabricated by cheap natural resources to remove MB from aqueous solutions.http://www.sciencedirect.com/science/article/pii/S2666086521000631Mesoporous silica nanoparticlesFunctionalizationAPTESRice huskMethylene blue |
| spellingShingle | Leshan Usgodaarachchi Charitha Thambiliyagodage Ramanee Wijesekera Martin G. Bakker Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution Current Research in Green and Sustainable Chemistry Mesoporous silica nanoparticles Functionalization APTES Rice husk Methylene blue |
| title | Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| title_full | Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| title_fullStr | Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| title_full_unstemmed | Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| title_short | Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| title_sort | synthesis of mesoporous silica nanoparticles derived from rice husk and surface controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution |
| topic | Mesoporous silica nanoparticles Functionalization APTES Rice husk Methylene blue |
| url | http://www.sciencedirect.com/science/article/pii/S2666086521000631 |
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