Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption
Pre-extraction of hemicellulose from eucalyptus heartwood and sapwood was conducted using the method of KOH extraction. Activated carbons (ACs) with high toluene adsorption capacity were prepared by using KOH as activator and hemicellulose-pre-extracted residue (HPR) as AC precursor. The findings in...
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North Carolina State University
2025-01-01
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| Online Access: | https://ojs.bioresources.com/index.php/BRJ/article/view/24121 |
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| author | Xixiang Huang Yuanyuan Zhao Zhiwei Wang Yanhong Wang Yun Zhou Hao Cheng Penghui Li Shubin Wu |
| author_facet | Xixiang Huang Yuanyuan Zhao Zhiwei Wang Yanhong Wang Yun Zhou Hao Cheng Penghui Li Shubin Wu |
| author_sort | Xixiang Huang |
| collection | DOAJ |
| description | Pre-extraction of hemicellulose from eucalyptus heartwood and sapwood was conducted using the method of KOH extraction. Activated carbons (ACs) with high toluene adsorption capacity were prepared by using KOH as activator and hemicellulose-pre-extracted residue (HPR) as AC precursor. The findings indicated that the pore structure of the ACs could be regulated by adjusting the carbonization temperature. Using the HPR of eucalyptus heartwood as raw material, the activated carbon carbonized at 400 °C exhibited the highest BET surface area (3699 m2·g-1) and pore volume (1.90 cm3·g-1). The adsorption capacity of AC for toluene reached 816 mg·g-1. The results showed that the adsorption capacity of toluene was associated with the micropores (< 2 nm) in the AC. Optimizing the carbonization temperature could enhance the proportion of micropores, thereby significantly enhancing the activated carbon’s adsorption capacity for toluene. |
| format | Article |
| id | doaj-art-f68278b86ead41d6a7fce501e884fde6 |
| institution | Kabale University |
| issn | 1930-2126 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj-art-f68278b86ead41d6a7fce501e884fde62025-02-11T00:00:29ZengNorth Carolina State UniversityBioResources1930-21262025-01-01201225922752362Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene AdsorptionXixiang Huang0Yuanyuan Zhao1Zhiwei Wang2Yanhong Wang3Yun Zhou4Hao Cheng5Penghui Li6Shubin Wu7State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510540, P.R. China; Key Laboratory of Clean Pulp and Papermaking and Pollution Control of Guangxi, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, P.R. ChinaKey Laboratory of Clean Pulp and Papermaking and Pollution Control of Guangxi, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, P.R. China; Guanghou Paper Group Ltd, Guangzhou 511462, P.R. China Key Laboratory of Clean Pulp and Papermaking and Pollution Control of Guangxi, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, P.R. ChinaGuanghou Paper Group Ltd, Guangzhou 511462, P.R. ChinaGuanghou Paper Group Ltd, Guangzhou 511462, P.R. ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510540, P.R. ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510540, P.R. ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510540, P.R. ChinaPre-extraction of hemicellulose from eucalyptus heartwood and sapwood was conducted using the method of KOH extraction. Activated carbons (ACs) with high toluene adsorption capacity were prepared by using KOH as activator and hemicellulose-pre-extracted residue (HPR) as AC precursor. The findings indicated that the pore structure of the ACs could be regulated by adjusting the carbonization temperature. Using the HPR of eucalyptus heartwood as raw material, the activated carbon carbonized at 400 °C exhibited the highest BET surface area (3699 m2·g-1) and pore volume (1.90 cm3·g-1). The adsorption capacity of AC for toluene reached 816 mg·g-1. The results showed that the adsorption capacity of toluene was associated with the micropores (< 2 nm) in the AC. Optimizing the carbonization temperature could enhance the proportion of micropores, thereby significantly enhancing the activated carbon’s adsorption capacity for toluene.https://ojs.bioresources.com/index.php/BRJ/article/view/24121eucalyptus heartwoodeucalyptus sapwoodcarbonization temperatureactivated carbontoluene adsorption |
| spellingShingle | Xixiang Huang Yuanyuan Zhao Zhiwei Wang Yanhong Wang Yun Zhou Hao Cheng Penghui Li Shubin Wu Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption BioResources eucalyptus heartwood eucalyptus sapwood carbonization temperature activated carbon toluene adsorption |
| title | Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption |
| title_full | Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption |
| title_fullStr | Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption |
| title_full_unstemmed | Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption |
| title_short | Preparation of Activated Carbons from Hemicellulose Pre-Extraction Residue of Eucalyptus Heartwood and Sapwood and their Application in Toluene Adsorption |
| title_sort | preparation of activated carbons from hemicellulose pre extraction residue of eucalyptus heartwood and sapwood and their application in toluene adsorption |
| topic | eucalyptus heartwood eucalyptus sapwood carbonization temperature activated carbon toluene adsorption |
| url | https://ojs.bioresources.com/index.php/BRJ/article/view/24121 |
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