ArticleEnvironmental science and pollution research international2020
Biodegradable chitosan-ethylene glycol hydrogel effectively adsorbs nitrate in water.
Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 26 citations in OpenAlex.
- Sustainable xanthan-based superabsorbent hydrogel with enhanced durability for repeated nitrate remediation in drinking water.Scientific reports · 2025Article
- Enhanced nitrate removal from aqueous solutions using amine-functionalized biowaste-derived adsorbent.Scientific reports · 2025Article
- Environmental and Wastewater Treatment Applications of Stimulus-Responsive Hydrogels.Gels (Basel, Switzerland) · 2025Review
- Hydrogels and Hydrogel Nanocomposites: Enhancing Healthcare through Human and Environmental Treatment.Advanced healthcare materials · 2022Review
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Authors and funding
6 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Nitrate, existing as inorganic anions in water, possesses high water-solubility and has caused lots of contaminations around the world. It is thus extremely urgent to develop an effective method to effectively remove nitrate from water in a sustainable way. In this study, chitosan-ethylene glycol hydrogel (CEGH) was synthesized using the repeated freezing-thawing procedure. A range of batch sorption experiments were conducted to evaluate CEGH as a nitrate sorbent. The adsorption isotherms of nitrate onto CEGH followed the Langmuir model with coefficient of determination of 0.98 and a maximum Langmuir adsorption capacity of 49.04 mg/g, which is higher than that of other adsorbents. The adsorption of nitrate onto CEGH was affected by pH value and temperature. The results indicate that the main removal mechanism was polarity of CEGH molecules given by functional group O-H and N-H and hydrogen bond interaction between CEGH and nitrate molecules under acidic conditions. Therefore, CEGH, a biodegradable carbon-rich adsorbent, can be widely applied to remove nitrate in wastewater treatment and water body remediation.
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