【摘要】 铁尾矿转化为高附加值产品的功能化利用越来越受关注和期待。本文以铁尾矿为原料，引入锌离子水热合成了介孔硅酸锌复合材料，包括由层状纳米片组装而成的花瓣状硅酸锌类物质(zincsilite)和异晶锌(hemimorphite)复合材料，以及由短棒组装而成的椭球状硅锌矿(willemite)复合材料。其中，花瓣状异晶锌复合材料具有典型的片状粒子聚集形成的狭缝孔结构，孔隙宽度约为3.385 nm,比表面积为96.15 m~2/g。该复合材料对染料亚甲基蓝(MB)有高效吸附效应，10 min内去除率接近100%,在染料废水处理领域具有潜在的应用前景。更多还原

【Abstract】 The functional utilization of iron ore tailings(IOT) converted into high value-added products is receiving 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 hemimorphite 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 m~2/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.更多还原