本文对所选取的粉煤灰先后进行了酸改性和不同浓度的碱改性,对改性后所得样品的外部形态、矿质组分、化学组分、粒径分布和比表面积进行了检测,同时对检测结果进行了系统的分析.通过苯气吸附实验对改性后粉煤灰的吸附能力进行了测试,发现其吸附性能有很大改善,另外,对其吸附能力变化的机理进行了探讨.研究结果表明样品比表面积增大和新物质的形成是粉煤灰吸附能力提高的主要原因.
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