Optimization of acid modifier and its effect on the wettability of anthracite coal
Abstract This research aimed to investigate the influence of free radicals on the wettability of Guizhou anthracite coal. The best acid modifier was selected through quantum chemistry and sedimentation experiments. Infrared spectroscopy (FTIR), paramagnetic resonance spectroscopy (EPR), and wetting...
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Nature Portfolio
2025-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-96938-z |
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| author | Shuangxia Yi Mei Yuan Bobo Li Xiaoyu Hu Heng Zhang Zongmian Hou |
| author_facet | Shuangxia Yi Mei Yuan Bobo Li Xiaoyu Hu Heng Zhang Zongmian Hou |
| author_sort | Shuangxia Yi |
| collection | DOAJ |
| description | Abstract This research aimed to investigate the influence of free radicals on the wettability of Guizhou anthracite coal. The best acid modifier was selected through quantum chemistry and sedimentation experiments. Infrared spectroscopy (FTIR), paramagnetic resonance spectroscopy (EPR), and wetting heat experiments were carried out to investigate the effect of acid modifiers on the wetting properties of coal. The results of the study show that, among the three modifiers tested (APG, AEO3, and NP-10), alkyl glycoside (APG) exhibited the best wetting performance and strongest reactivity with the coal molecules. The best wetting effect was achieved with 1% APG + 6% HF. The acid modifier increased the concentration of hydrophilic functional groups and free radicals. Under the action of the acid modifier, the hydrophobic functional groups in the coal samples break off to form active sites (free radicals) and then continue to be converted into hydrophilic functional groups, which in turn improves the wettability of the coal samples. The measured wetting heat of the post-modified experimental coal sample increased by 14.86%, which proved that the acid modifier could improve the wettability of the coal. This study provides theoretical insights into the quantum chemical optimization of modifiers, gas disaster prevention, and dust management of anthracite coal. |
| format | Article |
| id | doaj-art-e55ba2ae5bc04f87ab79dcf80e0909cf |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-e55ba2ae5bc04f87ab79dcf80e0909cf2025-08-20T03:14:10ZengNature PortfolioScientific Reports2045-23222025-04-0115111710.1038/s41598-025-96938-zOptimization of acid modifier and its effect on the wettability of anthracite coalShuangxia Yi0Mei Yuan1Bobo Li2Xiaoyu Hu3Heng Zhang4Zongmian Hou5College of Mining, Guizhou UniversityCollege of Mining, Guizhou UniversityCollege of Mining, Guizhou UniversityCollege of Mining, Guizhou UniversityCollege of Mining, Guizhou UniversityCollege of Mining, Guizhou UniversityAbstract This research aimed to investigate the influence of free radicals on the wettability of Guizhou anthracite coal. The best acid modifier was selected through quantum chemistry and sedimentation experiments. Infrared spectroscopy (FTIR), paramagnetic resonance spectroscopy (EPR), and wetting heat experiments were carried out to investigate the effect of acid modifiers on the wetting properties of coal. The results of the study show that, among the three modifiers tested (APG, AEO3, and NP-10), alkyl glycoside (APG) exhibited the best wetting performance and strongest reactivity with the coal molecules. The best wetting effect was achieved with 1% APG + 6% HF. The acid modifier increased the concentration of hydrophilic functional groups and free radicals. Under the action of the acid modifier, the hydrophobic functional groups in the coal samples break off to form active sites (free radicals) and then continue to be converted into hydrophilic functional groups, which in turn improves the wettability of the coal samples. The measured wetting heat of the post-modified experimental coal sample increased by 14.86%, which proved that the acid modifier could improve the wettability of the coal. This study provides theoretical insights into the quantum chemical optimization of modifiers, gas disaster prevention, and dust management of anthracite coal.https://doi.org/10.1038/s41598-025-96938-zAnthraciteQuantum chemistryAcid-liquid modifierFree radicalsWettability |
| spellingShingle | Shuangxia Yi Mei Yuan Bobo Li Xiaoyu Hu Heng Zhang Zongmian Hou Optimization of acid modifier and its effect on the wettability of anthracite coal Scientific Reports Anthracite Quantum chemistry Acid-liquid modifier Free radicals Wettability |
| title | Optimization of acid modifier and its effect on the wettability of anthracite coal |
| title_full | Optimization of acid modifier and its effect on the wettability of anthracite coal |
| title_fullStr | Optimization of acid modifier and its effect on the wettability of anthracite coal |
| title_full_unstemmed | Optimization of acid modifier and its effect on the wettability of anthracite coal |
| title_short | Optimization of acid modifier and its effect on the wettability of anthracite coal |
| title_sort | optimization of acid modifier and its effect on the wettability of anthracite coal |
| topic | Anthracite Quantum chemistry Acid-liquid modifier Free radicals Wettability |
| url | https://doi.org/10.1038/s41598-025-96938-z |
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