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Solid-Phase Extraction of Cobalt(Ⅱ) and Nickel(Ⅱ) from Wastewater Using Impregnated Mesoporous Silica
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Shenghang ZHANG, Xuanzhao SHU, Ziming JIAO, Yukun HUANG
Hydrometallurgy of China | 2025, 44(2) : 204 - 214
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Hydrometallurgy of China | 2025, 44(2): 204-214
• Experiment Research •
Solid-Phase Extraction of Cobalt(Ⅱ) and Nickel(Ⅱ) from Wastewater Using Impregnated Mesoporous Silica
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Shenghang ZHANG, Xuanzhao SHU, Ziming JIAO, Yukun HUANG
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  • School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
Published: 2025-04-28 doi: 10.13355/j.cnki.sfyj.2025.02.009
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A series of impregnated mesoporous silica SBA-15-P507 was prepared by using 2-ethylhexyl phosphate (P507) as extractor and mesoporous nano-silica material (SBA-15) as carrier. The adsorption properties of SBA-15-P507 on Co2+ and Ni2+ in wastewater were investigated. The results show that under the conditions of adsorbent dosage of 5 g/L, initial mass concentrations of Co2+ of 400 mg/L, initial mass concentrations of Ni2+ of 400 mg/L, adsorption temperature of 25 ℃, the equilibrium adsorption capacities of Co2+ and Ni2+ can reach 58.90 and 23.45 mg/g, respectively, and the adsorption equilibrium time is 40 min. The adsorption processes of Co2+ and Ni2+ conform to the quasi-second-order kinetic equation, and the adsorption isotherms of Co2+ and Ni2+ conform to the Langmuir isotherm adsorption model. The adsorption reaction of Co2+ is endothermic, while that of Ni2+ is exothermic. In the mixed simulation system containing Co2+ and Ni2+, SBA-15-P507(2.0) can selectively adsorb Co2+.0.1 mol/L sulfuric acid solution has significant elution effect on Co2+ adsorbed by SBA-15-P507(2.0). The research results can provide a new way for the purification of cobalt-nickel wastewater, which has certain theoretical guidance and practical application value.

cobalt  /  nickel  /  solid phase extraction  /  macerate  /  mesoporous silica  /  wastewater  /  purification  /  removal
Shenghang ZHANG, Xuanzhao SHU, Ziming JIAO, Yukun HUANG. Solid-Phase Extraction of Cobalt(Ⅱ) and Nickel(Ⅱ) from Wastewater Using Impregnated Mesoporous Silica[J]. Hydrometallurgy of China, 2025 , 44 (2) : 204 -214 . DOI: 10.13355/j.cnki.sfyj.2025.02.009
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doi: 10.13355/j.cnki.sfyj.2025.02.009
  • Receive Date：2024-10-11
  • Online Date：2025-07-05
  • Published：2025-04-28
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  • Received：2024-10-11
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    School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, 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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