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Hybrid pectin-based biosorbents for zinc ions removal
Agata Jakóbik-Kolon1, Joanna Bok-Badura1, Krzysztof Karoń2
1Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Bolesława Krzywoustego 6, 44-100 Gliwice, Poland.
Carbohydrate Polymers
|May 16, 2017
Summary
Hybrid pectin-based biosorbents effectively remove zinc ions from water. These novel materials, incorporating various polysaccharides or lecithin, show high sorption capacities, offering a promising solution for water purification.
Area of Science:
- Materials Science
- Environmental Chemistry
- Biotechnology
Background:
- Zinc contamination in aqueous solutions poses environmental and health risks.
- Developing efficient and cost-effective biosorbents is crucial for water remediation.
- Pectin-based materials offer a biodegradable and abundant matrix for biosorbent development.
Purpose of the Study:
- To investigate the efficacy of hybrid pectin-based biosorbents for zinc ion removal.
- To evaluate the influence of polysaccharide and phospholipid additives on biosorbent performance.
- To determine optimal conditions for zinc sorption using these novel materials.
Main Methods:
- Synthesis of hybrid biosorbents using pectin and various polysaccharide or lecithin additives.
- Characterization of biosorbent structure and immobilization using IR spectroscopy and SEM micrographs.
- Sorption experiments to assess zinc ion removal efficiency, capacity, and swelling index at different pH levels.
Main Results:
- Successful immobilization of polysaccharides within the pectin matrix was confirmed.
- Maximum sorption capacities for zinc ions ranged from 17.7 to 25.4 mg/g.
- Optimal zinc sorption was observed at pH levels above 4, with xanthan gum and lecithin showing the highest capacities.
Conclusions:
- Hybrid pectin-based biosorbents demonstrate significant potential for effective zinc ion removal from aqueous solutions.
- The choice of additive (polysaccharides or lecithin) and pH significantly influences sorption properties.
- These materials represent a sustainable and efficient approach to heavy metal remediation in water treatment.
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