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- Title
钢渣基多孔地质聚合物的制备及吸附性能研究.
- Authors
桑明明; 赵恒泽; 吴培益; 冯静霞; 朱令起; 李 晔
- Abstract
Porous geopolymer materials were prepared with steel slag as the main raw material, water glass as the activator and H2O2 as the foaming agent. The raw materials and final samples were characterized by XRD, FTIR, SEM and BET. The effects of calcium silicon ratio, activator and H2O2 admixture on the properties of the material were studied. The porous geopolymer was used as adsorbent to investigate the adsorption effect of Cu 2+ . It shows that when the calcium-silicon ratio is 1. 0, water glass mixing is 20. 4% ( mass fraction) and foaming agent mixing is 4% ( mass fraction), the material performs well, with 86. 4% total porosity, 0. 5 MPa compressive strength, 0. 408 g / cm 3 volume density, volume water absorption rate is 56. 31%, and steel slag utilization rate is 65. 85%, significantly improving the specific surface area and pore capacity. The adsorption results show that the material has a good adsorption effect on Cu 2+, the removal rate reaches 91. 44%, and the equilibrium adsorption amount reaches 15. 239 mg / g. The adsorption process conforms to the pseudo second order.
- Publication
Bulletin of the Chinese Ceramic Society, 2022, Vol 41, Issue 2, p562
- ISSN
1001-1625
- Publication type
Article