Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties
3D hexagonal mesoporous silica (YPS) and vesicle-like mesoporous silica (YNS) were synthesized using H 3 PO 4 and HNO 3 as catalyst respectively, and environmental friendly sodium N-dodecyl glycine (YCS) as a green surfactant. The YPS and YNS samples were calcined at 550 °C, 700 °C and 850 °C. Their...
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| Format: | Article |
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SAGE Publishing
2015-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.10.831 |
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| author | H. Yang L. Liu B. S. Liang H. M. Yuan M. J. Tian Y. X. Yang Y. Huang |
| author_facet | H. Yang L. Liu B. S. Liang H. M. Yuan M. J. Tian Y. X. Yang Y. Huang |
| author_sort | H. Yang |
| collection | DOAJ |
| description | 3D hexagonal mesoporous silica (YPS) and vesicle-like mesoporous silica (YNS) were synthesized using H 3 PO 4 and HNO 3 as catalyst respectively, and environmental friendly sodium N-dodecyl glycine (YCS) as a green surfactant. The YPS and YNS samples were calcined at 550 °C, 700 °C and 850 °C. Their ordered meso-structures were characterized using infrared spectroscopy (IR), small-angle X-ray diffraction (SXRD), and high resolution transmission electron microscopy (HRTEM). Since YNS has special pore structure, it shows radiating channels with 20 nm shell around, while YPS shows random access channels. YNS not only has slightly larger pore size and IEP value than those of YPS but also possesses higher thermal stability. Precisely because of these factors, the pore of YNS-550 is characteristic of unique curvature, having stronger action with the lacease molecule than that between lacease molecule and YPS-550 with smaller pore curvature. So lacease adsorption isotherm of YPS-550 was V-type and that of YNS-550 was IV-type. The adsorption equation for lacease onto a mesoporous silica surface may be obtained as log[θ/(1 − θ)] = (log C + log K)/β. |
| format | Article |
| id | doaj-art-8313ebc7dda34ae9a10ed6a52291d925 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2015-12-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-8313ebc7dda34ae9a10ed6a52291d9252025-01-02T22:37:24ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382015-12-013310.1260/0263-6174.33.10.831Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption PropertiesH. Yang0L. Liu1B. S. Liang2H. M. Yuan3M. J. Tian4Y. X. Yang5Y. Huang School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China3D hexagonal mesoporous silica (YPS) and vesicle-like mesoporous silica (YNS) were synthesized using H 3 PO 4 and HNO 3 as catalyst respectively, and environmental friendly sodium N-dodecyl glycine (YCS) as a green surfactant. The YPS and YNS samples were calcined at 550 °C, 700 °C and 850 °C. Their ordered meso-structures were characterized using infrared spectroscopy (IR), small-angle X-ray diffraction (SXRD), and high resolution transmission electron microscopy (HRTEM). Since YNS has special pore structure, it shows radiating channels with 20 nm shell around, while YPS shows random access channels. YNS not only has slightly larger pore size and IEP value than those of YPS but also possesses higher thermal stability. Precisely because of these factors, the pore of YNS-550 is characteristic of unique curvature, having stronger action with the lacease molecule than that between lacease molecule and YPS-550 with smaller pore curvature. So lacease adsorption isotherm of YPS-550 was V-type and that of YNS-550 was IV-type. The adsorption equation for lacease onto a mesoporous silica surface may be obtained as log[θ/(1 − θ)] = (log C + log K)/β.https://doi.org/10.1260/0263-6174.33.10.831 |
| spellingShingle | H. Yang L. Liu B. S. Liang H. M. Yuan M. J. Tian Y. X. Yang Y. Huang Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties Adsorption Science & Technology |
| title | Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties |
| title_full | Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties |
| title_fullStr | Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties |
| title_full_unstemmed | Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties |
| title_short | Vesicle-Like and 3D-Hexagonal Mesoporous SiO: Preparation and Laccase Adsorption Properties |
| title_sort | vesicle like and 3d hexagonal mesoporous sio preparation and laccase adsorption properties |
| url | https://doi.org/10.1260/0263-6174.33.10.831 |
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