Chitosan was supported on a porous composite using 3-aminopropyltriethoxysilane (APTES) as silanizing agent through a simple and green method to enhance Cr(VI) uptake performance under batch and continuous-flow systems. Chemical modification was corroborated through ATR-FTIR and SEM/EDX analyses, showing a silane loading of 6.2% onto the surface of the chitosan composite. The silanized composite adsorption capacity was 18 mg/g (155 mg/g_chitosan) in batch experiments. The porous nature of the adsorbent had a positive kinetic effect, achieving equilibrium after 30 min. Fixed-bed column adsorption showed an adsorption capacity of 12 mg/g (102 mg/ g_chitosan). Through an alternative desorbing configuration in column regeneration, the eluted volume was minimized to less than 20% of the treated volume, enhancing the behavior of the adsorbent in multiple adsorption-desorption cycles.

壳聚糖负载在多孔复合材料上，使用 3-氨基丙基三乙氧基硅烷 (APTES) 作为硅烷化剂，通过一种简单且绿色的方法来提高间歇和连续流动系统下 Cr(VI) 的吸收性能。通过 ATR-FTIR 和 SEM/EDX 分析证实了化学改性，表明壳聚糖复合材料表面的硅烷负载量为 6.2%。在批量实验中，硅烷化复合物的吸附容量为 18 mg/g（155 mg/g_壳聚糖）。吸附剂的多孔性质具有积极的动力学效应，在 30 分钟后达到平衡。固定床柱吸附显示吸附容量为 12 mg/g（102 mg/g_壳聚糖）。通过柱再生中的替代解吸配置，洗脱体积最小化到处理体积的 20% 以下，增强了吸附剂在多个吸附-解吸循环中的行为。