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Isothermal Adsorption of Methyl Orange by Tea Residue Modified with Low Eutectic Solvent
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Qian LI1, 2, Dexing JIANG1, Xiaofang ZOU1, Jinrong WANG1, Yuting HONG1
Hydrometallurgy of China | 2025, 44(6) : 798 - 805
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Hydrometallurgy of China | 2025, 44(6): 798-805
• Experiment Research •
Isothermal Adsorption of Methyl Orange by Tea Residue Modified with Low Eutectic Solvent
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Qian LI1, 2, Dexing JIANG1, Xiaofang ZOU1, Jinrong WANG1, Yuting HONG1
Affiliations
  • 1.School of Materials Science and Energy Engineering, Hubei University of Education, Wuhan　430205, China
  • 2.Hubei Environmental Purification Material Science and Engineering Technology Research Center, Hubei University of Education, Wuhan　430205, China
Published: 2025-12-20 doi: 10.13355/j.cnki.sfyj.2025.06.012
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Three different types of deep eutectic solvents (DES) were prepared and used to modify Tieguanyin tea residue. The adsorption performance of the modified tea residue for methyl orange was investigated, and its thermodynamic adsorption behavior was explored. The results show that the adsorption effect of DES② modified tea residue composed of choline chloride/urea/malonic acid on methyl orange solution is better than that of DES① modified tea residue composed of sulfoxic acid/urea/choline chloride and DES③ modified tea residue composed of choline chloride/oxalic acid. The adsorption process of methyl orange by DES② modified tea residue is more in line with the Langmuir adsorption isothermal model. The adsorption process is endothermic, spontaneous and disordered.

tea residue  /  deep eutectic solvent  /  modification  /  methyl orange  /  isothermal adsorption  /  thermodynamics
李倩, 蒋德星, 邹小芳, 王金荣, 洪玉婷. 低共熔溶剂改性茶叶渣对甲基橙的等温吸附试验研究. 湿法冶金, 2025 , 44 (6) : 798 -805 . DOI: 10.13355/j.cnki.sfyj.2025.06.012
Qian LI, Dexing JIANG, Xiaofang ZOU, Jinrong WANG, Yuting HONG. Isothermal Adsorption of Methyl Orange by Tea Residue Modified with Low Eutectic Solvent[J]. Hydrometallurgy of China, 2025 , 44 (6) : 798 -805 . DOI: 10.13355/j.cnki.sfyj.2025.06.012
Appendix
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Year 2025 volume 44 Issue 6
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Article Info
doi: 10.13355/j.cnki.sfyj.2025.06.012
  • Receive Date：2025-04-30
  • Online Date：2026-09-28
  • Published：2025-12-20
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  • Received：2025-04-30
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Affiliations
    1.School of Materials Science and Energy Engineering, Hubei University of Education, Wuhan　430205, China
    2.Hubei Environmental Purification Material Science and Engineering Technology Research Center, Hubei University of Education, Wuhan　430205, China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2025.06.012
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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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