Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres
Isomerization of glucose to fructose is a key step in achieving high value conversion of biomass. Lignin nanosphere (LN) showing hollow structure were successfully prepared using lignin oligomers as carbon precursors and self-assembly method. On this basis, Mg and Al were doped into lignin nanospher...
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| Format: | Article |
| Language: | English |
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Elsevier
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/119282/ http://psasir.upm.edu.my/id/eprint/119282/1/119282.pdf |
| _version_ | 1848867924584955904 |
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| author | Shan, Jianrong Yang, Bowen Su, Yaqiong Chong, Gunhean Abdullah, Luqman Chuah Qi, Xinhua Guo, Haixin |
| author_facet | Shan, Jianrong Yang, Bowen Su, Yaqiong Chong, Gunhean Abdullah, Luqman Chuah Qi, Xinhua Guo, Haixin |
| author_sort | Shan, Jianrong |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Isomerization of glucose to fructose is a key step in achieving high value conversion of biomass. Lignin nanosphere (LN) showing hollow structure were successfully prepared using lignin oligomers as carbon precursors and self-assembly method. On this basis, Mg and Al were doped into lignin nanospheres by electrostatic and coordination interactions to obtain a heterogeneous catalyst (Mg x Al y /LN) with the coexistence of Brønsted base and Lewis acid. In this catalytic system, the synergistic effect of Al(OH) 3 and MgO as the active center of the catalyst promoted the formation of intermediates for the isomerization of glucose to fructose. DFT analysis show that Al(OH) 3 plays a greater role than MgO in promoting the isomerization of acyclic glucose to form fructose. When the Mg/Al ratio of 2:1, the yield of Mg 2 Al 1 /LN catalyzed isomerization of glucose to fructose under microwave irradiation can reach as high as 57.2 %, which could be reused for 5 times and still remain its initial activity. The activation energy was about 39.8 kJ/mol, which was lower than that of most heterogenous catalytic systems, showing good catalytic performance and potential for application. |
| first_indexed | 2025-11-15T14:44:14Z |
| format | Article |
| id | upm-119282 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:44:14Z |
| publishDate | 2025 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1192822025-08-14T06:40:47Z http://psasir.upm.edu.my/id/eprint/119282/ Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres Shan, Jianrong Yang, Bowen Su, Yaqiong Chong, Gunhean Abdullah, Luqman Chuah Qi, Xinhua Guo, Haixin Isomerization of glucose to fructose is a key step in achieving high value conversion of biomass. Lignin nanosphere (LN) showing hollow structure were successfully prepared using lignin oligomers as carbon precursors and self-assembly method. On this basis, Mg and Al were doped into lignin nanospheres by electrostatic and coordination interactions to obtain a heterogeneous catalyst (Mg x Al y /LN) with the coexistence of Brønsted base and Lewis acid. In this catalytic system, the synergistic effect of Al(OH) 3 and MgO as the active center of the catalyst promoted the formation of intermediates for the isomerization of glucose to fructose. DFT analysis show that Al(OH) 3 plays a greater role than MgO in promoting the isomerization of acyclic glucose to form fructose. When the Mg/Al ratio of 2:1, the yield of Mg 2 Al 1 /LN catalyzed isomerization of glucose to fructose under microwave irradiation can reach as high as 57.2 %, which could be reused for 5 times and still remain its initial activity. The activation energy was about 39.8 kJ/mol, which was lower than that of most heterogenous catalytic systems, showing good catalytic performance and potential for application. Elsevier 2025-12-15 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/119282/1/119282.pdf Shan, Jianrong and Yang, Bowen and Su, Yaqiong and Chong, Gunhean and Abdullah, Luqman Chuah and Qi, Xinhua and Guo, Haixin (2025) Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres. Applied Catalysis B: Environmental, 379. art. no. 125682. pp. 1-13. ISSN 0926-3373 https://linkinghub.elsevier.com/retrieve/pii/S0926337325006654 Chemical engineering - Research Biomass conversion - Research Catalysis 10.1016/j.apcatb.2025.125682 |
| spellingShingle | Chemical engineering - Research Biomass conversion - Research Catalysis Shan, Jianrong Yang, Bowen Su, Yaqiong Chong, Gunhean Abdullah, Luqman Chuah Qi, Xinhua Guo, Haixin Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title | Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title_full | Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title_fullStr | Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title_full_unstemmed | Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title_short | Microwave irradiation-assisted isomerization of glucose to fructose over Mg/Al-doped lignin self-assembled nanospheres |
| title_sort | microwave irradiation-assisted isomerization of glucose to fructose over mg/al-doped lignin self-assembled nanospheres |
| topic | Chemical engineering - Research Biomass conversion - Research Catalysis |
| url | http://psasir.upm.edu.my/id/eprint/119282/ http://psasir.upm.edu.my/id/eprint/119282/ http://psasir.upm.edu.my/id/eprint/119282/ http://psasir.upm.edu.my/id/eprint/119282/1/119282.pdf |