In this work, a new type of self-assembled phytic acid-graphene oxide composite foam (PAGF) was prepared by hydrothermal method. In addition, Au nanoparticles (Au NPs) and Fe₃O₄ particles were loaded onto PADF to obtain PAGF@Au&Fe₃O₄ composite by a simple one-step method. The addition of graphene oxide (GO) can effectively prevent the agglomeration of Au NPs and weaken its surface passivation. The results of SEM, XRD, XPS and BET proved the successful preparation of the composite and its large specific surface area. Moreover, the synthesized PAGF@Au&Fe₃O₄ composite showed good catalytic performance for p-nitrophenol (4-NP) and o-nitroaniline (2-NA) solutions with the rate constant (k) values of 0.0799 min⁻¹ and 0.0546 min⁻¹, respectively. Due to the addition of Fe₃O₄, the composite exhibited good stability and recyclability, and maintained high catalytic efficiency after 8 cycles of catalytic process. The current work provides new ideas for developing novel graphene oxide-based composite materials and their catalytic degradation of organic pollutants.

通过水热法制备了一种新型的自组装植酸-氧化石墨烯复合泡沫（PAGF）。另外，将Au纳米颗粒（Au NPs）和Fe ₃ O ₄颗粒负载到PADF上，通过简单的一步法获得PAGF @ Au＆Fe ₃ O ₄复合材料。氧化石墨烯（GO）的添加可以有效防止金纳米颗粒的团聚，并减弱其表面钝化。SEM，XRD，XPS和BET的结果证明了该复合材料的制备成功，并且具有较大的比表面积。此外，合成的PAGF @ Au＆Fe ₃ O ₄复合材料对对硝基苯酚（4-NP）和邻硝基苯胺（2-NA）溶液表现出良好的催化性能，速率常数（k）值分别为0.0799 min ^-1和0.0546 min ^-1。由于添加了Fe ₃ O ₄，该复合材料表现出良好的稳定性和可回收性，并且经过8个催化过程后仍保持了较高的催化效率。当前的工作为开发基于氧化石墨烯的新型复合材料及其催化降解有机污染物提供了新思路。