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Environmental Chemistry Letters

, Volume 18, Issue 1, pp 251–255 | Cite as

Dual-network design to enhance the properties of agar aerogel adsorbent by incorporating in situ ion cross-linked alginate

  • Dajian HuangEmail author
  • Qiling Quan
  • Yuting Zheng
  • Wenjie Tang
  • Zhuo Zhang
  • Xiaohu Qiang
Original Paper
  • 151 Downloads

Abstract

Natural and synthetic adsorbents are used to remove contaminants from polluted waters. In particular, polymer-based aerogels are promising but their adsorption capacity and dimensional stability should be improved. Here we propose a new design strategy to prepare a dual-network aerogel, consisting of physical cross-linked agar and Ca2+ cross-linked sodium alginate as the first and second networks, respectively. After introducing cross-linked sodium alginate into the agar matrix, the morphology of the agar aerogel transformed from a distinct layered structure to a co-continuous network. The swelling degree ratio of the agar aerogel is reduced, and the dimensional stability was  improved by introducing ion cross-linked sodium alginate into the agar matrix. The aerogels were used as adsorbents to remove methylene blue from aqueous solutions. The adsorption capacity of the agar aerogel was remarkably improved by adding sodium alginate due to the increase in electrostatic attraction and adsorption site.

Keywords

Agar Alginate Ionic cross-linked Double network aerogel Adsorbent 

Notes

Acknowledgements

The authors would like to thank the funding of the Science and Technology Support Project of Natural Science Foundation of the Gansu Province (No. 1506RJZA068).

Supplementary material

10311_2019_932_MOESM1_ESM.docx (1.1 mb)
Supplementary file1 (DOCX 1098 kb)

References

  1. Belhouchat N, Zaghouane-Boudiaf H, Viseras C (2017) Removal of anionic and cationic dyes from aqueous solution with activated organobentonite/sodium alginate encapsulated beads. Appl Clay Sci 135:9–15.  https://doi.org/10.1016/j.clay.2016.08.031 CrossRefGoogle Scholar
  2. Chen L, Li Y, Du Q, Wang Z, Xia Y, Yedinak E, Lou J, Ci L (2017) High performance agar/graphene oxide composite aerogel for methylene blue removal. Carbohydr Polym 155:345–353.  https://doi.org/10.1016/j.carbpol.2016.08.047 CrossRefGoogle Scholar
  3. Dai L, Zhu W, He L, Tan F, Zhu N, Zhou Q, He M, Hu G (2018) Calcium-rich biochar from crab shell: an unexpected super adsorbent for dye removal. Bioresour Technol 267:510–516.  https://doi.org/10.1016/j.biortech.2018.07.090 CrossRefGoogle Scholar
  4. Hu Z, Omer A, Ouyang X, Yu D (2018) Fabrication of carboxylated cellulose nanocrystal/sodium alginate hydrogel beads for adsorption of Pb(II) from aqueous solution. Int J Biol Macromol 108:149–157.  https://doi.org/10.1016/j.ijbiomac.2017.11.171 CrossRefGoogle Scholar
  5. Karimifard S and Moghaddam MR (2018) Application of response surface methodology in physicochemical removal of dyes from wastewater: a critical review. Sci Total Environ 640–641:772–797. https://doi.org/10.1016/j.scitotenv.2018.05.355 CrossRefGoogle Scholar
  6. Khan S, Masood S, Siddiqui K, Alam M, Zafar F, Haque Q, Nishat N (2018) Utilization of renewable waste material for the sustainable development of thermally stable and biologically active aliphatic amine modified Cardanol (phenolic lipid) - Formaldehyde free standing films. J Clean Prod 196:1644–1656.  https://doi.org/10.1016/j.jclepro.2018.06.081 CrossRefGoogle Scholar
  7. Kumar M, Vijayakumar G, Tamilarasan R (2019) Synthesis, characterization and experimental studies of nano Zn–Al–Fe3O4 blended alginate/Ca beads for the adsorption of Rhodamin B. J Polym Environ 27(1):106–117.  https://doi.org/10.1007/s10924-018-1318-0 CrossRefGoogle Scholar
  8. Lai KC, Hiew BYZ, Lee LY, Gan S, Thangalazhy-Gopakumar S, Chiu WS and Khiew PS (2019) Ice-templated graphene oxide/chitosan aerogel as an effective adsorbent for sequestration of metanil yellow dye. Bioresour Technol 274:134–144. https://doi.org/10.1016/j.biortech.2018.11.048 CrossRefGoogle Scholar
  9. Li Y, Guo C, Shi R, Zhang H, Gong L, Dai L (2019) Chitosan/nanofibrillated cellulose aerogel with highly oriented microchannel structure for rapid removal of Pb (II) ions from aqueous solution. Carbohydr Polym.  https://doi.org/10.1016/j.carbpol.2019.115048 CrossRefGoogle Scholar
  10. Lu T, Xiang T, Huang X, Li C, Zhao W, Zhang Q, Zhao C (2015) Post-crosslinking towards stimuli-responsive sodium alginate beads for the removal of dye and heavy metals. Carbohydr Polym 133:587–595.  https://doi.org/10.1016/j.carbpol.2015.07.048 CrossRefGoogle Scholar
  11. Mahamadi C, Mawere E (2014) High adsorption of dyes by water hyacinth fixed on alginate. Environ Chem Lett 12:313–320.  https://doi.org/10.1007/s10311-013-0445-z CrossRefGoogle Scholar
  12. Ren H, Gao Z, Wu D, Jiang J, Sun Y, Luo C (2016) Efficient Pb(II) removal using sodium alginate-carboxymethyl cellulose gel beads: preparation, characterization, and adsorption mechanism. Carbohydr Polym 137:402–409.  https://doi.org/10.1016/j.carbpol.2015.11.002 CrossRefGoogle Scholar
  13. Shankar S, Teng X, Rhim J (2014) Properties and characterization of agar/CuNP bionanocomposite films prepared with different copper salts and reducing agents. Carbohydr Polym 114:484–492.  https://doi.org/10.1016/j.carbpol.2014.08.036 CrossRefGoogle Scholar
  14. Shao Z, Huang X, Yang F, Zhao W, Zhou X, Zhao C (2018) Engineering sodium alginate-based cross-linked beads with high removal ability of toxic metal ions and cationic. Carbohydr Polym 187:85–93.  https://doi.org/10.1016/j.carbpol.2018.01.092 CrossRefGoogle Scholar
  15. Sultan M (2017) Polyurethane for removal of organic dyes from textile wastewater. Environ Chem Lett 15:347–366.  https://doi.org/10.1007/s10311-016-0597-8 CrossRefGoogle Scholar
  16. Tan L, Yu C, Wang M, Zhang S, Sun J, Dong S, Sun J (2019) Synergistic effect of adsorption and photocatalysis of 3D g-C3N4-agar hybrid aerogels. Appl Surf Sci 467–468:286–292.  https://doi.org/10.1016/j.apsusc.2018.10.067 CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringLanzhou Jiaotong UniversityLanzhouChina

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