Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal
Само за регистроване кориснике
2017
Аутори
Drah, AbdusalamTomić, Nataša
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Velicić, Zorica
Marinković, Aleksandar
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Radovanović, Željko
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Veličković, Zlate
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Jančić-Heinemann, Radmila
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Чланак у часопису (Објављена верзија)
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Метаподаци
Приказ свих података о документуАпстракт
The adsorption performance of three-dimensionally ordered macroporous (3DOM) gamma-alumina was investigated for enhanced Pb2+, Ni2+ and Cd2+ removal. The synthesis was based on a modified sol-gel method using a colloidal crystal template (CCT) method based on PMMA microspheres. The structure was characterized by means of FTIR spectroscopy and XRD analysis. The three-dimensional structure was examined by scanning electron microscopy, which enabled image analysis that showed significantly low shrinkage (8.77%) after calcination at 800 degrees C. The influential parameters, including contact time and adsorbent dosage, were investigated in a batch adsorption study. The adsorption equilibrium and kinetic data were found to be in agreement with the Freundlich isotherm for Pb2+ removal and the Dubinin-Radushkevich isotherm for Ni2+ and Cd2+ removal. The time-dependent adsorption was best described by a pseudo-second-order kinetic model and the Weber-Morris model. High adsorption capacities: 9...5.39, 23.32 and 25.39 mg/g were obtained for Pb2+, Cd2+ and Ni2+ removal at 45 degrees C, respectively. The existence of interconnected macroporous and mesoporous structures of highly ordered gamma-alumina enabled a higher adsorption capacity in comparison with literature data for others alumina-based adsorbents.
Кључне речи:
Al2O3 - (D) / Porosity - (B) / Calcination - (A) / AdsorptionИзвор:
Ceramics International, 2017, 43, 16, 13817-13827Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Развој опреме и процеса добијања полимерних композитних материјала са унапред дефинисаним функционалним својствима (RS-MESTD-Technological Development (TD or TR)-34011)
DOI: 10.1016/j.ceramint.2017.07.102
ISSN: 0272-8842
WoS: 000411299300100
Scopus: 2-s2.0-85024369445
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Drah, Abdusalam AU - Tomić, Nataša AU - Velicić, Zorica AU - Marinković, Aleksandar AU - Radovanović, Željko AU - Veličković, Zlate AU - Jančić-Heinemann, Radmila PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3546 AB - The adsorption performance of three-dimensionally ordered macroporous (3DOM) gamma-alumina was investigated for enhanced Pb2+, Ni2+ and Cd2+ removal. The synthesis was based on a modified sol-gel method using a colloidal crystal template (CCT) method based on PMMA microspheres. The structure was characterized by means of FTIR spectroscopy and XRD analysis. The three-dimensional structure was examined by scanning electron microscopy, which enabled image analysis that showed significantly low shrinkage (8.77%) after calcination at 800 degrees C. The influential parameters, including contact time and adsorbent dosage, were investigated in a batch adsorption study. The adsorption equilibrium and kinetic data were found to be in agreement with the Freundlich isotherm for Pb2+ removal and the Dubinin-Radushkevich isotherm for Ni2+ and Cd2+ removal. The time-dependent adsorption was best described by a pseudo-second-order kinetic model and the Weber-Morris model. High adsorption capacities: 95.39, 23.32 and 25.39 mg/g were obtained for Pb2+, Cd2+ and Ni2+ removal at 45 degrees C, respectively. The existence of interconnected macroporous and mesoporous structures of highly ordered gamma-alumina enabled a higher adsorption capacity in comparison with literature data for others alumina-based adsorbents. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal EP - 13827 IS - 16 SP - 13817 VL - 43 DO - 10.1016/j.ceramint.2017.07.102 ER -
@article{ author = "Drah, Abdusalam and Tomić, Nataša and Velicić, Zorica and Marinković, Aleksandar and Radovanović, Željko and Veličković, Zlate and Jančić-Heinemann, Radmila", year = "2017", abstract = "The adsorption performance of three-dimensionally ordered macroporous (3DOM) gamma-alumina was investigated for enhanced Pb2+, Ni2+ and Cd2+ removal. The synthesis was based on a modified sol-gel method using a colloidal crystal template (CCT) method based on PMMA microspheres. The structure was characterized by means of FTIR spectroscopy and XRD analysis. The three-dimensional structure was examined by scanning electron microscopy, which enabled image analysis that showed significantly low shrinkage (8.77%) after calcination at 800 degrees C. The influential parameters, including contact time and adsorbent dosage, were investigated in a batch adsorption study. The adsorption equilibrium and kinetic data were found to be in agreement with the Freundlich isotherm for Pb2+ removal and the Dubinin-Radushkevich isotherm for Ni2+ and Cd2+ removal. The time-dependent adsorption was best described by a pseudo-second-order kinetic model and the Weber-Morris model. High adsorption capacities: 95.39, 23.32 and 25.39 mg/g were obtained for Pb2+, Cd2+ and Ni2+ removal at 45 degrees C, respectively. The existence of interconnected macroporous and mesoporous structures of highly ordered gamma-alumina enabled a higher adsorption capacity in comparison with literature data for others alumina-based adsorbents.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal", pages = "13827-13817", number = "16", volume = "43", doi = "10.1016/j.ceramint.2017.07.102" }
Drah, A., Tomić, N., Velicić, Z., Marinković, A., Radovanović, Ž., Veličković, Z.,& Jančić-Heinemann, R.. (2017). Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal. in Ceramics International Elsevier Sci Ltd, Oxford., 43(16), 13817-13827. https://doi.org/10.1016/j.ceramint.2017.07.102
Drah A, Tomić N, Velicić Z, Marinković A, Radovanović Ž, Veličković Z, Jančić-Heinemann R. Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal. in Ceramics International. 2017;43(16):13817-13827. doi:10.1016/j.ceramint.2017.07.102 .
Drah, Abdusalam, Tomić, Nataša, Velicić, Zorica, Marinković, Aleksandar, Radovanović, Željko, Veličković, Zlate, Jančić-Heinemann, Radmila, "Highly ordered macroporous gamma-alumina prepared by a modified sol-gel method with a PMMA microsphere template for enhanced Pb2+, Ni2+ and Cd2+ removal" in Ceramics International, 43, no. 16 (2017):13817-13827, https://doi.org/10.1016/j.ceramint.2017.07.102 . .