The functional utilization of iron ore tailings(IOT)converted into high value-added products is re-ceiving increasing attention and expectation.Herein,mesoporous zinc silicate composites,including zincsilite composite and hemimorphite composite with flower-like morphology assembled by layered nanosheets,as well as willemite composite with ellipsoidal morphology assembled by short rods,were synthesized from iron ore tailings by introducing zinc ions via hydrothermal reaction process.Mesoporous zinc silicate composite hemimor-phite has a typical narrow pore structure formed by the aggregation of sheet-like particles,with a pore width of about 3.385 nm and a specific surface area of 96.15 m2/g.The composite shows efficient adsorption capacity for the dye methylene blue(MB),with a removal rate of nearly 100％within 10 min,and has potential application prospects in the field of dye waste water treatment.
关键词
铁尾矿/介孔硅酸锌复合材料/水热反应/亚甲基蓝/吸附
Key words
iron ore tailings/mesoporous zinc silicate composite/hydrothermal reaction/methylene blue/adsorp-tion
维普
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