开发与应用

GO/Fe3O4纳米复合物用于亚甲基蓝的高效吸附研究

展开
  • 西南民族大学化学与环境学院,成都610041
王涵(1996-),女,硕士研究生,主要从事氧化石墨烯的合成与功能化方面的研究。

收稿日期: 2021-03-03

  修回日期: 2021-06-10

  网络出版日期: 2021-06-29

基金资助

国家自然科学基金面上项目(21676219);西南民族大学研究生创新项目(CX2019SZ51)

Study on the GO/Fe3O4 nanocomposite for highly efficient adsorption of methylene blue

Expand
  • College of Chemistry and Environment,Southwest Minzu University,Chengdu 610041

Received date: 2021-03-03

  Revised date: 2021-06-10

  Online published: 2021-06-29

摘要

采用简便一步溶剂热法合成了Fe3O4纳米晶修饰磁性石墨烯纳米复合物(GO/Fe3O4)。表征了其结构形貌并研究了其对水溶液中阳离子染料亚甲基蓝(MB)的吸附性能。结果表明,以Fe(acac)3为铁源,不添加任何配体,可合成高比表面积的GO/Fe3O4(606.4m2/g);通过π-π堆叠和电荷共同作用,其对水溶液中的MB显示出高效吸附能力,最大平衡吸附容量可达1013.2mg/g。GO/Fe3O4对MB的吸附符合准二级动力学模型和Langmuir等温吸附模型。该材料有望成为一种优良的吸附剂用于水体中阳离子污染物的去除。

本文引用格式

王涵, 余海溶, 梁婷, 程昌敬 . 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 -270 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.06.058

Abstract

A magnetic graphene oxide nanocomposite decorated with Fe3O4 nanocrystals (GO/Fe3O4) was synthesized via a simple one-step solvothermal method.The structure and morphology,and adsorption performance of GO/Fe3O4 for a cationic dye (methylene blue,MB) from aqueous solution was investigated.The results indicated that,without addition of any ligands,GO/Fe3O4 with a high specific surface area of 606.4m2/g could be easily synthesized using Fe(acac)3 as the iron source.The resulted GO/Fe3O4 demonstrated rather high adsorption capacity of 1013.2mg/g via π-π stacking and electrostatic interactions between GO/Fe3O4 and MB.The MB adsorption onto MGO fitted well the pseudo-second-order kinetic and Langmuir models,respectively.Such the magnetic graphene nanocomposite could serve as an excellent adsorbent for effective removal of cationic pollutants from water body.

参考文献

[1] Fan L L,Luo C N,Li X J,et al.Fabrication of novel magnetic chitosan grafted with graphene oxide to enhance adsorption properties for methyl blue[J].J Hazard Mater,2012,215-216:272-279.
[2] Yan H,Tao X,Yang Z,et al.Effects of the oxidation degree of graphene oxide on the adsorption of methylene blue[J].J Hazard Mater,2014,268:191-198.
[3] Ai L,Zhang C,Chen Z.Removal of methylene blue from aqueous solution by a solvothermal-synthesized graphene/magnetite composite[J].J Hazard Mater,2011,192(3):1515-1524.
[4] Song Y B,Song X D,Cheng C J,et al.Poly(4-styrenesulfonic acid-co-maleic acid)-sodium-modified magnetic reduced graphene oxide for enhanced adsorption performance toward cationic dyes[J].RSC Adv,2015,5:87030-87042.
[5] 宋晓东,程昌敬,余海溶.阴离子聚电解质修饰磁性氧化石墨烯对碱性品红的吸附性能[J].化工进展,2016,35(9):2973-2981.
[6] Song Y B,Lv S N,Cheng C J,et al.Fast and highly-efficient removal of methylene blue from aqueous solution by poly (styrenesulfonic acid-co-maleic acid)-sodium-modified magnetic colloidal nanocrystal clusters[J].Appl Surf Sci,2015,324:854-863.
[7] Deng J,Wen X,Wang Q.Solvothermal in situ synthesis of Fe3O4-multi-walled carbon nanotubes with enhanced heterogeneous Fenton-like activity[J].Mater Res Bull,2012,47:3369-3376.
[8] Cai W,Wan J.Facile synthesis of superparamagnetic magnetite nanoparticles in liquid polyols[J].J Colloid Interface Sci,2007,305:366-370.
[9] Sun S,Zeng H.Size-controlled synthesis of magnetite nanoparticles[J].J Am Chem Soc,2002,124,8204-8205.
[10] Zhang J,Azam M S,Shi C,et al.Poly (acrylic acid) functionalized magnetic graphene oxide nanocomposite for removal of methylene blue[J].RSC Adv,2015,5:32272-32282.
[11] Yan H,Li H,Yang H,et al.Removal of various cationic dyes from aqueous solutions using a kind of fully biodegradable magnetic composite microsphere[J].Chem Eng J,2013,223:402-411.
[12] Sharma P,Hussain N,Borah D J,et al.Kinetics and adsorption behavior of the methyl blue at the graphene oxide/reduced graphene oxide nanosheet-water interface:a comparative study[J].J Chem Eng Data,2013,58(12):3477-3488.
[13] Ho Y S,Mckay G M.Pseudo-second order model for sorption processes[J].Process Biochem,1999,34(5):451-465.
[14] Jiang L,Wen Y Y,Zhu Z J,et al.A Double cross-linked strategy to construct graphene aerogels with highly efficient methylene blue adsorption performance[J].Chemosphere,2021,265:129169 (1-8).
[15] Yang M L,Liu X L,Qi Y C,et al.Preparation of κ-Carrageenan/graphene oxide gel beads and their efficient adsorption for methylene blue[J].J Colloid Interface Sci,2017,506:669-677.
[16] Gopalakrishnan A,Singh S P,Badhulika S.Reusable,few-layered-MoS2 nanosheets/graphene hybrid on cellulose paper for superior adsorption of methylene blue dye[J].New J Chem,2020,44:5489-5500.
[17] Qada E N E,Allen S J,Walker G M.Adsorption of basic dyes from aqueous solution onto activated carbons[J].Chem Eng J,2008,135(3):174-184.
Options
文章导航

/