In this study, a novel chitosan‐based nanoadsorbent has been synthesized by the reaction between nanochitosan and epoxy‐triazinetrione. The commercial cationic dye, malachite green, was chosen as a model dye in order to inspect the adsorption efficiency of the prepared adsorbent. The kinetics and thermodynamics of the adsorption process have been explored. According to the results, the Freundlich isotherm and pseudo‐second‐order model can well elucidate the adsorption process. The obtained thermodynamic parameters indicated that the removal process was spontaneous and endothermic (ΔH° = 95.0 kJ mol⁻¹). The effects of several parameters on the dye elimination were studied using the response surface methodology approach. A high adsorption efficiency (95%) was obtained at 29.5 min, pH 7.9, and 7.5 mg of the adsorbent. At this condition, the removal efficiency of the unmodified adsorbent was 65.4%. The novel epoxy‐triazinetrione‐modified chitosan nanosorbent was found to be highly adequate for the treatment of wastewaters containing organic dyes.

中文翻译：

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一种新型功能化壳聚糖纳米吸附剂，可有效消除水性介质中的孔雀石绿

在这项研究中，通过纳米壳聚糖与环氧三嗪三酮之间的反应合成了一种新型的基于壳聚糖的纳米吸附剂。选择商品阳离子染料孔雀石绿作为模型染料，以检查制备的吸附剂的吸附效率。已经研究了吸附过程的动力学和热力学。根据结果​​，Freundlich等温线和伪二级模型可以很好地阐明吸附过程。获得的热力学参数表明去除过程是自发的并且是吸热的（ΔH °= 95.0 kJ mol ^-1）。使用响应表面方法研究了几个参数对染料去除的影响。在29.5分钟，pH 7.9和7.5 mg吸附剂下获得了高吸附效率（95％）。在这种条件下，未改性吸附剂的去除效率为65.4％。发现新型的环氧三嗪三酮改性的壳聚糖纳米吸附剂非常适合处理含有机染料的废水。