Genipin-Crosslinked Water Hyacinth/Chitosan Sponges as Green Adsorbents for Reactive Dye Removal 


Vol. 25,  No. 1, pp. 13-25, Jan.  2024
10.1007/s12221-023-00427-x


PDF
  Abstract

Bio-based adsorbents for removing pollutants were prepared using composite sponges with porosities greater than 80%. Herein, we report for the first time the preparation of macroporous sponges via freeze-drying of a chitosan solution and water hyacinth fiber (WHF). Genipin, a chemical crosslinker, was utilized in the process. The results showed that genipin increased the resistance to compression of the sponges while also improving their water and thermal stability. The composite sponges effectively removed C.I. reactive orange 16 (RO16) from water, with adsorption capacities ranging from 37.86 to 95.77 mg/g at pH 7. After 24 h, nearly complete dye removal was achieved with an initial dye concentration of 20 mg/L and an adsorbent dose of 2.5 g/L. The adsorption isotherm followed the Freundlich model, and the adsorption kinetics followed the pseudo-second-order model. The WHF/chitosan sponge could be reused for up to four cycles. These findings demonstrate the potential of the prepared sponges as bio-based adsorbents for the treatment of dye-contaminated wastewater.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

P. Pisitsak, N. M. N. Ayutthaya, S. Ummartyotin, T. Inprasit, P. Pisitsak, "Genipin-Crosslinked Water Hyacinth/Chitosan Sponges as Green Adsorbents for Reactive Dye Removal," Fibers and Polymers, vol. 25, no. 1, pp. 13-25, 2024. DOI: 10.1007/s12221-023-00427-x.

[ACM Style]

Penwisa Pisitsak, Nuttanita Malakul Na Ayutthaya, Sarute Ummartyotin, Thitirat Inprasit, and Penwisa Pisitsak. 2024. Genipin-Crosslinked Water Hyacinth/Chitosan Sponges as Green Adsorbents for Reactive Dye Removal. Fibers and Polymers, 25, 1, (2024), 13-25. DOI: 10.1007/s12221-023-00427-x.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

pISSN : 1229 - 9197
eISSN : 1875 - 0052

Impact Factor(2022): 2.5