SYNTHESIS OF CELLULOSE-BASED HYDROGEL FOR REGULATING THE RELEASE OF NITROGEN FERTILIZER

Mouroug Thaher Zyadeh, Imad Mohd Khair Hamadneh, Mahmoud Abdel Rahman Kasrawi, Haythem Saadeh, Mohammed Hasan Shahein

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This study aimed to synthesize a cellulose-based hydrogel as a new green fertilizer with slow-release properties. The cellulose-based hydrogel was prepared by reacting carboxymethyl cellulose solution with cellulose and was cross-linked with citric acid. The structure of the hydrogel was confirmed by FT-IR. The nitrogen fertilizers KNO3 and (NH4)2 SO4 were loaded during the preparation. The swelling behavior of the hydrogel in deionized water was studied, in addition to the effects of pH, salinity, and drought on swelling behavior. Finally, the fertilizer release behavior in deionized water and a soil mix was investigated, in addition to the soil water content. The optimum hydrogel formulation (HG) showed good absorbance capacity – of 450%, and good durability for one month in deionized water. The swelling-deswelling studies revealed its sensitivity to different solutions. The HG loaded with nitrogen fertilizers showed slow, sustained release rates in deionized water and the soil mix; the cumulative release rates approached 70%, 65%, 60%, and 65%, respectively. Moreover, soil moisture was improved by the addition of the hydrogel by 100% on day 20 and reached 12% on day 30. The results were in accordance with the Committee of European Normalization standards. In conclusion, this new green hydrogel could be used in agricultural applications.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
JournalCellulose Chemistry and Technology
Volume57
Issue number1-2
DOIs
Publication statusPublished - 2023
Externally publishedYes

Keywords

  • CMC-Na
  • ammonium sulfate
  • citric acid
  • potassium nitrate
  • slow-release fertilizer
  • soil-water retention

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'SYNTHESIS OF CELLULOSE-BASED HYDROGEL FOR REGULATING THE RELEASE OF NITROGEN FERTILIZER'. Together they form a unique fingerprint.

Cite this