将双亲胺基杯芳烃自组装到还原氧化石墨烯(RGO)表面,制备了能分散在水中的还原氧化石墨烯-杯芳烃(RGO-T)复合物,然后将预先制备的水分散性Fe3O4纳米粒子(Fe3O4NPs)自组装到RGO-T表面,得到RGO-T-Fe3O4NPs三元纳米复合材料,Fe3O4NPs能够均匀地分散在氧化石墨烯表面,用RGO-T-Fe3O4NPs复合材料催化H2O2对废水中亚甲基蓝的氧化降解。结果表明:RGO-T-Fe3O4NPs能够催化H2O2快速氧化降解亚甲基蓝,降解率达到100%,并能回收循环使用。
An amphiphilic amino resorcinarene was self-assembled onto the surface of reduced graphene oxide (RGO) to prepare water-dispersive RGO-T composites.Subsequently,as-prepared water-dispersible Fe3O4NPs were self-assembled onto the surface of RGO-T to obtain RGO-T-Fe3O4NPs ternary nanocomposites.It was verified that the Fe3O4NPs were uniformly dispersed on RGO.The RGO-T-Fe3O4NPs nanocomposite was used to catalyze H2O2 for the oxidative degradation of methylene blue in wastewater.The results showed that RGO-T-Fe3O4NPs could catalyze H2O2 and achieve the rapid oxidative degradation of methylene blue,with a degradation rate of 100%,and could be recycled for reuse.
[1] Wang S,Boyjoo Y,Choueib A,et al.Removal of dyes from aqueous solution using fly ash and red mud[J].Water Research,2005,39(1):129-138.
[2] 王滨,陈砚君,丁益文,等.漆酶及其对染料废水处理的研究进展[J].南京工业大学学报:自然科学版,2023,45(6):589-599.
[3] 王涵,余海溶,梁婷,等.GO/Fe3O4纳米复合物用于亚甲基蓝的高效吸附研究[J].化工新型材料,2021,49(6):265-275.
[4] 龚安华,乔赟,毛鑫雨,等.纳米四氧化三铁的制备及其催化过氧化氢降解罗丹明B废水的研究[J].染整技术,2018,40(9):29-32.
[5] 王文姣,庄钊,白瑞钦,等.四氧化三铁(Fe3O4)磁性复合材料在废水处理中的研究进展[J].胶体与聚合物,2020,38(4):186-190.
[6] 陈海峰,袁欣蕊,陈康佳.纳米四氧化三铁碳片对亚甲基蓝废水的催化脱色[J].化学研究与应用,2023,35(7):1609-1616.
[7] 朱脉勇.过渡金属铁、铜氧化物纳米材料的制备及催化应用研究[D].扬州:扬州大学,2011.
[8] 何光裕,张艳,钱茂松,等.磁性Fe3O4/石墨烯Photo-Fenton催化剂的制备及其催化活性[J].无机化学学报,2012,28(11):2306-2311.
[9] 王浩男.磁性氧化石墨烯吸附及催化过硫酸盐去除水中染料的研究[D].大连:大连海事大学,2022.
[10] 朱壹,陈宇欣,彭宇霄,等.还原氧化石墨烯/四氧化三铁复合气凝胶的制备与染料吸附性能[J].武汉工程大学学报,2020,42(2):181-185.
[11] 常青,黄佳,江国栋,等.氧化石墨烯-Fe3O4磁性纳米材料固定辣根过氧化物酶及降解酚类物质[J].环境工程学报,2014,8(5):1812-1815.
[12] Zhu M Y,Diao G W.Synthesis of porous Fe3O4 nanospheres and its application for the catalytic degradation of xylenol orange[J].J Phys Chem C,2011,115(39):18923-18934.
[13] 孙燕.多胺基两亲杯芳烃分子的自组装和纳米材料的研究[D].扬州:扬州大学,2009.
[14] Sun S,Zeng H.Size-controlled synthesis of magnetite nano-particles[J].J Am Chem Soc,2002,124(28):8204-8205.
[15] Hummers W S,Offeman R E.Preparation of graphitic oxide[J].J Am Chem Soc,1958,80:1339.
[16] Zhou Jun,Chen Ming,Diao Guowang.Assembling gold and platinum nanoparticles on resorcinarene modified graphene and their electrochemical applications[J].J Mater Chem A,2013,1:2278-2285.
基金资助
国家自然科学基金资助项目(21773203)
PDF
