ArticleScientific reports2025
Fabrication and characterization of a magnetite water hyacinth nanocomposite for effective Cr(VI) remediation.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Titanium-Integrated Magnetic Silica Aerogels via Microfluidic Synthesis for Pesticide Removal from Water.Gels (Basel, Switzerland) · 2026Article
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3 authors.
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Abstract
Exploring a method for purifying water, this study focused on using a novel biosorbent a nanocomposite made by combining magnetite with water hyacinth - to capture and remove toxic hexavalent chromium (Cr(VI)). The synthesized material underwent thorough examination using techniques like FTIR to identify its surface chemistry, revealing the presence of hydroxyl and carbonyl groups, which likely play a crucial role in binding Cr(VI). The material's surface charge, indicated by a PZC of 5.3, shifts from positive in acidic conditions to negative in more alkaline environments. Interestingly, embedding magnetite increased the material's surface area to 237.81 m²/g, offering more sites for adsorption compared to the raw water hyacinth (205.4 m²/g). The effectiveness of this biosorbent was tested under various conditions. The removal of Cr(VI) improved significantly with longer contact times, reaching a peak efficiency of 87.2% after 120 min. Increasing the amount of biosorbent used also boosted removal, achieving 80.5% at the highest dosage tested. However, higher initial concentrations of Cr(VI) made removal slightly less efficient, with the best result (85.8%) observed at a concentration of 25 mg/L. The way Cr(VI) attached to the biosorbent surface closely followed the Langmuir model, suggesting a uniform, single-layer adsorption process. As per Langmuir isotherm the maximum sorption uptake ( q
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