In this work, a novel N-doped Reduced Graphene Oxide (NRGO)/sodium alginate (SA)/polyvinyl alcohol (PVA) microsphere was prepared by a simple embed method to remove anthracene and its oxygenated-PAH from aqueous solution and reduce the risk of the application of nanomaterials in the water environment. The morphology and functional groups were successfully characterized by SEM, XRD and FTIR etc. The NRGO/SA/PVA microspheres were applied as the efficient adsorbent for removal of anthracene (ANT) and its oxygenated polycyclic aromatic hydrocarbon (OPAH), 2-methylanthraquinone (2-MAQ) from aqueous solution. Batch experiments with the subject of the mass ratio of SA and PVA, the concentration of NRGO and contact time were investigated. The sorption kinetics and equilibrium data followed pseudo-second order model and the Freundlich isotherm model, respectively, indicating the chemical adsorption process. Regeneration experiments indicated that the NRGO/SA/PVA microspheres almost showed a slight loss in adsorption capacity after three cycles. This study indicated that the NRGO/SA/PVA microspheres with easy separation, environmental benignity and high reusability were proved to be a kind of potential adsorbent for PAHs and OPAHs removal from wastewater.

在这项工作中，通过简单的嵌入方法制备了一种新型的 N 掺杂还原氧化石墨烯 (NRGO)/海藻酸钠 (SA)/聚乙烯醇 (PVA) 微球，以从水溶液中去除蒽及其含氧多环芳烃并降低风险纳米材料在水环境中的应用. 通过SEM、XRD和FTIR等成功地表征了形貌和官能团。NRGO/SA/PVA微球被用作去除蒽（ANT）及其含氧多环芳烃（OPAH）、2-甲基蒽醌（ 2-MAQ) 来自水溶液。以 SA 和 PVA 的质量比、NRGO 的浓度和接触时间为主题进行了批量实验。吸附动力学和平衡数据遵循伪二级模型和 Freundlich 等温线模型，分别表示化学吸附过程。再生实验表明，NRGO/SA/PVA 微球在三个循环后几乎表现出吸附能力的轻微损失。该研究表明，NRGO/SA/PVA微球具有易于分离、环境友好和高重复使用性等特点，被证明是一种潜在的去除废水中PAHs和OPAHs的吸附剂。