Sodium dodecylbenzenesulfonate (SDBS) is widely used as an efficient detergent in various fields. It is also used to remove radioactive atoms including Cs ions, and as a result, Cs-bound SDBS are generated during a nuclear decontamination process. A silica-based adsorbent with mesopores was prepared and surface-functionalized with amine groups to have a positively-charged pocket for SDBS with electrostatic attraction. The removal of SDBS using such an adsorbent was investigated under various conditions. The removal of high SDBS concentration (more than 2000 ppm) was successfully carried out using both a mesoporous structure and electrostatic attraction. The effects of the initial SDBS concentration, the concentration of adsorbent, the SDBS adsorption time, and the pH in the adsorption of SDBS with the mesoporous silica-based adsorbent were investigated in detail. In addition, the adsorption of Cs ion-bound SDBS was investigated for a practical decontamination process, implying that the adsorbent did not remove Cs ions together with SDBS.

十二烷基苯磺酸钠（SDBS）被广泛用作各种领域的有效洗涤剂。它还用于去除包括Cs离子在内的放射性原子，结果，在核净化过程中会生成Cs结合的SDBS。制备了具有中孔的二氧化硅基吸附剂，并用胺基团进行了表面官能化处理，以使具有静电吸引作用的SDBS具有带正电的袋。在各种条件下研究了使用这种吸附剂去除SDBS的方法。使用介孔结构和静电引力成功去除了高SDBS浓度（超过2000 ppm）。初始SDBS浓度，吸附剂浓度，SDBS吸附时间的影响，考察了介孔二氧化硅基吸附剂对SDBS吸附的pH值。另外，对Cs离子结合的SDBS的吸附进行了实际的净化过程的研究，这表明吸附剂不能与SDBS一起去除Cs离子。