β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol
β-cyclodextrin derivative intercalated MgAl-hydrotalcites (β-CD-Ca/LDH) was synthesized to convert glycerol into high value-added glycerol carbonate(GC) by transesterification of dimethyl carbonate (DMC) and glycerol in this paper. β-cyclodextrin-metal complexes and β-CD-Ca/LDH was characterized by...
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2021
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oai:doaj.org-article:9d5b9d4fff0b4a9caa6cba446c432c9e2021-11-25T17:05:44Zβ-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol10.3390/catal111113072073-4344https://doaj.org/article/9d5b9d4fff0b4a9caa6cba446c432c9e2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1307https://doaj.org/toc/2073-4344β-cyclodextrin derivative intercalated MgAl-hydrotalcites (β-CD-Ca/LDH) was synthesized to convert glycerol into high value-added glycerol carbonate(GC) by transesterification of dimethyl carbonate (DMC) and glycerol in this paper. β-cyclodextrin-metal complexes and β-CD-Ca/LDH was characterized by XRD, FT-IR, SEM, XPS and nitrogen adsorption-desorption. The enrichment of organic reactants in the hydrophobic cavity of β-cyclodextrin improved the collision probability of reactants. The intercalation of β-cyclodextrin-calcium complex (β-CD-Ca) increased the pore size and basic strength of catalyst. The experiment results showed that the glycerol conversion was 93.7% and the GC yield was 91.8% catalyzed by β-CD-Ca/LDH when the molar ratio of DMC and glycerol was 3:1, the catalyst dosage was 4 wt.%, the reaction temperature was 75 °C and the reaction time was 100 min while the glycerol conversion was 49.4% and the GC yield was 48.6% catalyzed by MgAl-LDH under the same conditions.Guanhao LiuJingyi YangXinru XuMDPI AGarticleβ-CD-CahydrotalcitesintercalationtransesterificationChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1307, p 1307 (2021) |
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β-CD-Ca hydrotalcites intercalation transesterification Chemical technology TP1-1185 Chemistry QD1-999 |
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β-CD-Ca hydrotalcites intercalation transesterification Chemical technology TP1-1185 Chemistry QD1-999 Guanhao Liu Jingyi Yang Xinru Xu β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
description |
β-cyclodextrin derivative intercalated MgAl-hydrotalcites (β-CD-Ca/LDH) was synthesized to convert glycerol into high value-added glycerol carbonate(GC) by transesterification of dimethyl carbonate (DMC) and glycerol in this paper. β-cyclodextrin-metal complexes and β-CD-Ca/LDH was characterized by XRD, FT-IR, SEM, XPS and nitrogen adsorption-desorption. The enrichment of organic reactants in the hydrophobic cavity of β-cyclodextrin improved the collision probability of reactants. The intercalation of β-cyclodextrin-calcium complex (β-CD-Ca) increased the pore size and basic strength of catalyst. The experiment results showed that the glycerol conversion was 93.7% and the GC yield was 91.8% catalyzed by β-CD-Ca/LDH when the molar ratio of DMC and glycerol was 3:1, the catalyst dosage was 4 wt.%, the reaction temperature was 75 °C and the reaction time was 100 min while the glycerol conversion was 49.4% and the GC yield was 48.6% catalyzed by MgAl-LDH under the same conditions. |
format |
article |
author |
Guanhao Liu Jingyi Yang Xinru Xu |
author_facet |
Guanhao Liu Jingyi Yang Xinru Xu |
author_sort |
Guanhao Liu |
title |
β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
title_short |
β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
title_full |
β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
title_fullStr |
β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
title_full_unstemmed |
β-Cyclodextrin-Calcium Complex Intercalated Hydrotalcites as Efficient Catalyst for Transesterification of Glycerol |
title_sort |
β-cyclodextrin-calcium complex intercalated hydrotalcites as efficient catalyst for transesterification of glycerol |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/9d5b9d4fff0b4a9caa6cba446c432c9e |
work_keys_str_mv |
AT guanhaoliu bcyclodextrincalciumcomplexintercalatedhydrotalcitesasefficientcatalystfortransesterificationofglycerol AT jingyiyang bcyclodextrincalciumcomplexintercalatedhydrotalcitesasefficientcatalystfortransesterificationofglycerol AT xinruxu bcyclodextrincalciumcomplexintercalatedhydrotalcitesasefficientcatalystfortransesterificationofglycerol |
_version_ |
1718412728704434176 |