Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins
Abstract Herein, we studied the reaction behavior of cellulose, Japanese beech (Fagus crenata), and Japanese cedar (Cryptomeria japonica) in an ionic liquid, 1-ethylpyridinium chloride ([EtPy][Cl]), at 120 °C. Depolymerization occurred initially in all of the samples in a manner that formed low mole...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-03-01
|
| Series: | Journal of Wood Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s10086-025-02185-1 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850023378283397120 |
|---|---|
| author | Ayako Miyata Hisashi Miyafuji |
| author_facet | Ayako Miyata Hisashi Miyafuji |
| author_sort | Ayako Miyata |
| collection | DOAJ |
| description | Abstract Herein, we studied the reaction behavior of cellulose, Japanese beech (Fagus crenata), and Japanese cedar (Cryptomeria japonica) in an ionic liquid, 1-ethylpyridinium chloride ([EtPy][Cl]), at 120 °C. Depolymerization occurred initially in all of the samples in a manner that formed low molecular weight compounds, followed by polymerization. The obtained polymers were black in color and ultraviolet-absorbing, and morphologically as well as chemically different from the raw materials, indicating that they were humins. These humins adsorbed cations in the order Ca2+ > Sr2+ > Cs+ > K+ > Na+, Li+. There was selectivity for adsorption of cations; cellulose-derived humins adsorbed Ca2+ particularly easily. The adsorptivity of humins was superior in the order cellulose-derived > beech-derived ≥ cedar-derived. The cation exchange capacity of cellulose-derived humins was higher than that of soil and comparable with that of natural zeolite, suggesting that humins obtained by [EtPy][Cl] treatment can be used as cation adsorbents. |
| format | Article |
| id | doaj-art-2fa593911c504e8caae292ce36c1650e |
| institution | DOAJ |
| issn | 1611-4663 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Wood Science |
| spelling | doaj-art-2fa593911c504e8caae292ce36c1650e2025-08-20T03:01:23ZengSpringerOpenJournal of Wood Science1611-46632025-03-0171111610.1186/s10086-025-02185-1Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding huminsAyako Miyata0Hisashi Miyafuji1Graduate School of Life and Environmental Sciences, Kyoto Prefectural UniversityGraduate School of Life and Environmental Sciences, Kyoto Prefectural UniversityAbstract Herein, we studied the reaction behavior of cellulose, Japanese beech (Fagus crenata), and Japanese cedar (Cryptomeria japonica) in an ionic liquid, 1-ethylpyridinium chloride ([EtPy][Cl]), at 120 °C. Depolymerization occurred initially in all of the samples in a manner that formed low molecular weight compounds, followed by polymerization. The obtained polymers were black in color and ultraviolet-absorbing, and morphologically as well as chemically different from the raw materials, indicating that they were humins. These humins adsorbed cations in the order Ca2+ > Sr2+ > Cs+ > K+ > Na+, Li+. There was selectivity for adsorption of cations; cellulose-derived humins adsorbed Ca2+ particularly easily. The adsorptivity of humins was superior in the order cellulose-derived > beech-derived ≥ cedar-derived. The cation exchange capacity of cellulose-derived humins was higher than that of soil and comparable with that of natural zeolite, suggesting that humins obtained by [EtPy][Cl] treatment can be used as cation adsorbents.https://doi.org/10.1186/s10086-025-02185-1Ionic liquid1-Ethylpyridinium chlorideLignocellulosicHuminIon adsorption |
| spellingShingle | Ayako Miyata Hisashi Miyafuji Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins Journal of Wood Science Ionic liquid 1-Ethylpyridinium chloride Lignocellulosic Humin Ion adsorption |
| title | Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins |
| title_full | Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins |
| title_fullStr | Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins |
| title_full_unstemmed | Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins |
| title_short | Lignocellulosics in an ionic liquid, 1-ethylpyridinium chloride: reaction behavior and ion adsorption properties of corresponding humins |
| title_sort | lignocellulosics in an ionic liquid 1 ethylpyridinium chloride reaction behavior and ion adsorption properties of corresponding humins |
| topic | Ionic liquid 1-Ethylpyridinium chloride Lignocellulosic Humin Ion adsorption |
| url | https://doi.org/10.1186/s10086-025-02185-1 |
| work_keys_str_mv | AT ayakomiyata lignocellulosicsinanionicliquid1ethylpyridiniumchloridereactionbehaviorandionadsorptionpropertiesofcorrespondinghumins AT hisashimiyafuji lignocellulosicsinanionicliquid1ethylpyridiniumchloridereactionbehaviorandionadsorptionpropertiesofcorrespondinghumins |