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The influence of the formation of iron minerals at the interface of birnessite on the migration and transformation of Sb
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Wan-xia LI1, Mei-qing CHEN1, *, Yi-an LIU1, Ping-xiao WU2
China Environmental Science | 2025, 45(3) : 1341 - 1350
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China Environmental Science | 2025, 45(3): 1341-1350
Water Pollution Control
The influence of the formation of iron minerals at the interface of birnessite on the migration and transformation of Sb
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Wan-xia LI1, Mei-qing CHEN1, *, Yi-an LIU1, Ping-xiao WU2
Affiliations
  • 1.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • 2.School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
Published: 2025-03-20
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The effects of the formation of iron minerals at the interface of birnessite(MnO2)on the environmental behavior of antimony(Sb)were systematically studied in this paper. Many nanoparticles and abundant pore structure was found on the obtained Fe-Mn binary oxide(Fe-MnO2). HRTEM and XRD analysis indicated that the nanoparticles anchored on MnO2 was ferrihydrite. The iron minerals formed on MnO2 enhanced adsorption performance for Sb(III)and Sb(V). The adsorption capacities of Sb(III)and Sb(V)by Fe-MnO2 were 397.4 and 247.7mg/g, respectively, which was much higher than that of MnO2 for Sb(III)and Sb(V)immobilization(342.0 and 71.8mg/g). The chemical bond complexation was the dominant mechanism for Sb(III)and Sb(V)immobilization. The electrostatic adsorption played an important role in Sb(V)immobilization. The ferrihydrite made a significant contribution for reducing the mobility of Sb. MnO2 played the critical role in the transformation of Sb(III)to Sb(V). This study not only reveals the formation mechanism of Fe-Mn binary oxide, but also helps to further understand the migration and transformation behavior of Sb in the environment.

birnessite  /  iron minerals formation  /  antimony  /  migration  /  transformation
Wan-xia LI, Mei-qing CHEN, Yi-an LIU, Ping-xiao WU. The influence of the formation of iron minerals at the interface of birnessite on the migration and transformation of Sb[J]. China Environmental Science, 2025 , 45 (3) : 1341 -1350 .
Year 2025 volume 45 Issue 3
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  • Receive Date:2024-08-28
  • Online Date:2026-03-18
  • Published:2025-03-20
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  • Received:2024-08-28
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    1.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
    2.School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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