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Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe

The porous carbonaceous precursor obtained from elutrilithe by adding pitch powder and solid SiO(2) was employed for the first time in an in situ hydrothermal synthesis of LSX zeolite/AC composite. The synthesized samples were characterized by XRD, SEM, and N(2) adsorption–desorption. The optimum co...

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Autores principales: Xue, Cailong, Wei, Xiaoqin, Zhang, Zhengwei, Bai, Yang, Li, Mengxue, Chen, Yongqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475993/
https://www.ncbi.nlm.nih.gov/pubmed/32781657
http://dx.doi.org/10.3390/ma13163469
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author Xue, Cailong
Wei, Xiaoqin
Zhang, Zhengwei
Bai, Yang
Li, Mengxue
Chen, Yongqiang
author_facet Xue, Cailong
Wei, Xiaoqin
Zhang, Zhengwei
Bai, Yang
Li, Mengxue
Chen, Yongqiang
author_sort Xue, Cailong
collection PubMed
description The porous carbonaceous precursor obtained from elutrilithe by adding pitch powder and solid SiO(2) was employed for the first time in an in situ hydrothermal synthesis of LSX zeolite/AC composite. The synthesized samples were characterized by XRD, SEM, and N(2) adsorption–desorption. The optimum conditions for the hydrothermal synthesis process were set as follows: gelling, aging, and crystallization. The time and temperature required for these steps were 24 h and 65 °C, 12 h and 20 °C, and 48 h and 65 °C, respectively. The molar ratios were (Na(2)O + K(2)O)/Al(3)O(2) = 7.7, K(2)O/(K(2)O + Na(2)O) = 3. The potential applicability test of the product showed high CO(2) working capacity, excellent CO(2)/CH(4) and CO(2)/N(2) selectivity, and high phenol adsorption capacity. These results suggest that the resultant product has excellent potential value in industrial application.
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spelling pubmed-74759932020-09-09 Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe Xue, Cailong Wei, Xiaoqin Zhang, Zhengwei Bai, Yang Li, Mengxue Chen, Yongqiang Materials (Basel) Article The porous carbonaceous precursor obtained from elutrilithe by adding pitch powder and solid SiO(2) was employed for the first time in an in situ hydrothermal synthesis of LSX zeolite/AC composite. The synthesized samples were characterized by XRD, SEM, and N(2) adsorption–desorption. The optimum conditions for the hydrothermal synthesis process were set as follows: gelling, aging, and crystallization. The time and temperature required for these steps were 24 h and 65 °C, 12 h and 20 °C, and 48 h and 65 °C, respectively. The molar ratios were (Na(2)O + K(2)O)/Al(3)O(2) = 7.7, K(2)O/(K(2)O + Na(2)O) = 3. The potential applicability test of the product showed high CO(2) working capacity, excellent CO(2)/CH(4) and CO(2)/N(2) selectivity, and high phenol adsorption capacity. These results suggest that the resultant product has excellent potential value in industrial application. MDPI 2020-08-06 /pmc/articles/PMC7475993/ /pubmed/32781657 http://dx.doi.org/10.3390/ma13163469 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xue, Cailong
Wei, Xiaoqin
Zhang, Zhengwei
Bai, Yang
Li, Mengxue
Chen, Yongqiang
Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title_full Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title_fullStr Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title_full_unstemmed Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title_short Synthesis and Characterization of LSX Zeolite/AC Composite from Elutrilithe
title_sort synthesis and characterization of lsx zeolite/ac composite from elutrilithe
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475993/
https://www.ncbi.nlm.nih.gov/pubmed/32781657
http://dx.doi.org/10.3390/ma13163469
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