华东理工大学化工学院;
为提高活性炭对高湿度碘甲烷的吸附能力，采用十三氟辛基三乙氧基硅烷(氟硅烷)和三乙烯二胺(TEDA)对树脂基球形活性炭改性。通过FTIR、SEM-EDS、BET、吸水率测试以及碘甲烷穿透实验对改性前后活性炭进行表征和吸附性能分析。碘甲烷穿透测试结果表明，质量分数为3%的氟硅烷和9%浸渍比的TEDA复合改性活性炭的穿透吸附容量最大，达到14.29 mg·g-1,与基炭、3%的氟硅烷改性和9%的TEDA改性吸附剂相比分别增加了11.63 mg·g-1、9.69 mg·g-1和1.69 mg·g-1。分析表明，氟硅烷改性使吸水率显著降低，减弱了水分子的竞争吸附，使吸附剂表面与碘甲烷结合的活性位点增加，增强吸附性能；同时TEDA浸渍使微孔减少较多但其与碘甲烷发生络合反应，增强化学吸附性能。本研究为解决核电站活性炭对碘甲烷吸附受湿度影响的问题提供了基础数据。
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基本信息:
DOI：10.14078/j.cnki.1001-3741.2025.01.009
中图分类号:X771;TQ424.1
引用信息:
[1]王艳,梁晓怿.改性树脂基活性炭对高湿度碘甲烷吸附性能研究[J].炭素技术,2025,44(01):58-65.DOI:10.14078/j.cnki.1001-3741.2025.01.009.
基金信息: