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Preparation of Sugarcane Bagasse Biochar/Geopolymer Composite Microspheres for Dye Removal
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Wenkang QI1, Xinyi ZHANG1, Yutong YANG1, Chunjie HUANG1, Xingyong XUE1, Qiaoqiao SU1, Yaocong HAN1, Wenxu MO1, Yukun XU1, Linqiang MO2
Mining and Metallurgical Engineering | 2025, 45(2) : 162 - 168
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Mining and Metallurgical Engineering | 2025, 45(2): 162-168
• MATERIALS •
Preparation of Sugarcane Bagasse Biochar/Geopolymer Composite Microspheres for Dye Removal
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Wenkang QI1, Xinyi ZHANG1, Yutong YANG1, Chunjie HUANG1, Xingyong XUE1, Qiaoqiao SU1, Yaocong HAN1, Wenxu MO1, Yukun XU1, Linqiang MO2
Affiliations
  • 1.Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, Guangxi, China
  • 2.Guangxi Vocational and Technical College of Communications, Nanning 530023, Guangxi, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.029
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Bagasse was calcined under an inert atmosphere to produce biochar, which was then mixed with metakaolin and taken to prepare sugarcane bagasse biochar/geopolymer composite microspheres (BGM) by using sodium silicate as an activator. The microstructure of BGM was characterized by XRD, FTIR, BET and XPS, and its adsorption performance for crystal violet (CV) and methylene blue (MB) was also investigated. Results show that the introduction of biochar can enhance the adsorption capacity of metakaolin-based geopolymer microspheres. The adsorption processes of BGM for both dyes follow the pseudo-second order kinetic model. BGM-20 can have theoretically maximum adsorption capacities of 138.031 mg/g for CV and 79.128 mg/g for MB, which can be well-described by the Langmuir isotherm model. Dynamic adsorption experiments revealed that the time required for adsorption of CV and MB by BGM to reach exhaustion exceeded 8 500 min, indicating that BGM can be taken as a fixed-bed adsorption medium material for dye wastewater treatment.

sugarcane bagasse  /  metakaolin  /  biochar  /  geopolymer  /  adsorbent  /  dye wastewater  /  wastewater treatment
Wenkang QI, Xinyi ZHANG, Yutong YANG, Chunjie HUANG, Xingyong XUE, Qiaoqiao SU, Yaocong HAN, Wenxu MO, Yukun XU, Linqiang MO. Preparation of Sugarcane Bagasse Biochar/Geopolymer Composite Microspheres for Dye Removal[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 162 -168 . DOI: 10.3969/j.issn.0253-6099.2025.02.029
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Year 2025 volume 45 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.02.029
  • Receive Date：2024-10-22
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-10-22
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Affiliations
    1.Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, Guangxi, China
    2.Guangxi Vocational and Technical College of Communications, Nanning 530023, Guangxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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