白钙沸石的制备及其对Cs+、Sr2+离子的吸附性能
Synthesis of Gyrolite and Its Absorption Performance to Cs+ and Sr2+
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摘要: 通过水热合成法, 制备了白钙沸石, 同时研究了合成矿物对于Cs+和Sr2+的离子吸附性能。研究表明, 采用氧化钙、氧化硅、氧化铁、氧化镁和氧化铝作为原料, 适当配比, 在240℃、保温7天水热反应条件下, 可制得白钙沸石以及掺杂白钙沸石。白钙沸石对Sr2+的吸附性能优于对Cs+的吸附性能。掺杂一定量的Mg2+、Al3+或Fe3+可以改善白钙沸石的吸附性能。Abstract: Gyrolite powder was prepared by hydrothermal method and absorption performance of as prepared powders was studied.The results indicate that using CaO, SiO2, MgO, Fe2O3 and Al2O3 as raw materials, gyrolite and ion-doped gyrolite can be prepared by hydrothermal method under 240℃ and 7days curing.The absorption of gyrolite to Sr2+ is better than that to Cs+.Ion doped gyrolite has better absorption performance than pure gyrolite.
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