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Preparation of γ-AlOOH Adsorbent from Aluminum Extracted from Red Mud and Its Adsorption Properties for Congo Red
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Kecheng SHANG1, 2, Zhonglin LI1, 2, Ting ZOU1, 2, Wenquan LI1, 2, Weiguang ZHANG1, 2, Yibing LI1, 2
Hydrometallurgy of China | 2025, 44(1) : 91 - 99
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Hydrometallurgy of China | 2025, 44(1): 91-99
• Experiment Research •
Preparation of γ-AlOOH Adsorbent from Aluminum Extracted from Red Mud and Its Adsorption Properties for Congo Red
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Kecheng SHANG1, 2, Zhonglin LI1, 2, Ting ZOU1, 2, Wenquan LI1, 2, Weiguang ZHANG1, 2, Yibing LI1, 2
Affiliations
  • 1 Department of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
  • 2 Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education,Guilin University of Technology, Guilin 541004, China
Published: 2025-02-28 doi: 10.13355/j.cnki.sfyj.2025.01.013
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A hydrangea-like γ-AlOOH adsorbent with a layered structure was prepared by hydrothermal method using sodium aluminate solution obtained from acid leaching of red mud as raw material and used for the adsorption of Congo red. The effects of initial pH and initial mass concentration of Congo red on the adsorption were investigated, and the adsorption mechanism of γ-AlOOH on Congo red was discussed. The results show that the saturated adsorption amount of Congo red can reach 1 748.15 mg/g under suitable conditions. The adsorption process is more appropriately described by the quasi-second-order kinetic model and the Langmuir isothermal adsorption model, and the adsorption behaviours are mainly dominated by monolayer adsorption. The adsorption process is spontaneous, heat-absorbing and chaotic with an increasing degree of confusion. The process can provide an effective solution to solve the problem of Congo red pollution and red mud accumulation in the water body, which is in line with the green development concept of treating waste with waste and turning waste into treasure, and has certain value of popularisation and application.

red mud  /  aluminum  /  γ-AlOOH  /  adsorbent  /  preparation  /  Congo red  /  adsorption
Kecheng SHANG, Zhonglin LI, Ting ZOU, Wenquan LI, Weiguang ZHANG, Yibing LI. Preparation of γ-AlOOH Adsorbent from Aluminum Extracted from Red Mud and Its Adsorption Properties for Congo Red[J]. Hydrometallurgy of China, 2025 , 44 (1) : 91 -99 . DOI: 10.13355/j.cnki.sfyj.2025.01.013
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doi: 10.13355/j.cnki.sfyj.2025.01.013
  • Receive Date：2024-07-31
  • Online Date：2025-07-05
  • Published：2025-02-28
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  • Received：2024-07-31
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    1 Department of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
    2 Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education,Guilin University of Technology, Guilin 541004, China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2025.01.013
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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
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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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