不同载体负载聚苯胺吸附还原银离子的研究中期报告

精品文档---下载后可任意编辑不同载体负载聚苯胺吸附还原银离子(Ag+)的讨论中期报告摘要本次讨论旨在寻找一种高效的方法，用于治理水体中银离子(Ag+)的污染。以聚苯胺作为吸附剂，讨论了聚苯胺在不同载体上的吸附效果。实验结果表明，负载在活性炭和氧化石墨烯上的聚苯胺具有较好的吸附效果，吸附量分别为 11.8mg/g 和 14.3mg/g。进一步讨论了吸附条件对聚苯胺吸附 Ag+的影响，发现酸性条件下聚苯胺吸附效果最佳。此外，还测定了聚苯胺吸附 Ag+的等温线和动力学曲线，并分析了吸附过程的热力学性质。讨论表明，聚苯胺负载在氧化石墨烯上的吸附过程是一个吸热反应，符合 Langmuir 等温吸附模型和准二级动力学模型。因此，聚苯胺负载在氧化石墨烯上的吸附方法具有高效、可行性和可重复性等优点，适用于水体中银离子(Ag+)的治理。关键词：聚苯胺；氧化石墨烯；活性炭；吸附；银离子AbstractThe aim of this study is to find an efficient method for treating the pollution of silver ions (Ag+) in water. Polyaniline was used as the adsorbent to investigate the adsorption effect of polyaniline on different carriers. The experimental results showed that polyaniline loaded on activated carbon and graphene oxide had good adsorption effect, with adsorption amounts of 11.8mg/g and 14.3mg/g, respectively. The effect of adsorption conditions on the adsorption of Ag+ by polyaniline was further studied, and it was found that the best adsorption effect was under acidic conditions. In addition, the adsorption isotherm and kinetic curves of polyaniline adsorbing Ag+ were determined, and the thermodynamic properties of the adsorption process were analyzed. The study showed that the adsorption process of polyaniline loaded on graphene oxide was an endothermic reaction, which was consistent with the Langmuir adsorption model and the pseudo-second-order kinetic model. Therefore, the adsorption method of polyaniline loaded on graphene oxide has the advantages of high efficiency, feasibility, repeatability, etc., and is suitable for the treatment of silver ions (Ag+) in water.Keywords: polyaniline; graphene oxide; activated carbon; adsorption; silver ions