Abstract Herein, the chitosan grafted molybdenum disulfide (CS/MoS2) was successfully synthesized for the effective elimination of graphene oxide (GO) from aqueous solutions. The results confirmed that the elimination of GO was dependent on solution pH, and the presence of positively charged cations was conducive to GO removal. The thermodynamic study indicated that the retention of GO on CS/MoS2 was an endothermic process and the high temperature promoted GO removal. The capture of GO only took place at the surface of CS/MoS2. Furthermore, the removal of GO relied on the electrostatic attraction. The hydroxyl groups can form a hydrogen bond with GO, which also promoted GO removal. This study can contribute to the elimination of GO and reduce its negative environmental effects.

中文翻译：

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脱除氧化石墨烯吸附剂壳聚糖接枝二硫化钼复合材料的合成与表征

摘要 本文成功合成了壳聚糖接枝二硫化钼 (CS/MoS2) 以有效去除水溶液中的氧化石墨烯 (GO)。结果证实GO的去除取决于溶液的pH值，带正电荷的阳离子的存在有利于GO的去除。热力学研究表明，GO 在 CS/MoS2 上的保留是一个吸热过程，高温促进了 GO 的去除。GO 的捕获仅发生在 CS/MoS2 的表面。此外，GO 的去除依赖于静电引力。羟基可以与 GO 形成氢键，这也促进了 GO 的去除。这项研究有助于消除 GO 并减少其对环境的负面影响。