Utilization of chitosan/Ag bionanocomposites as eco-friendly photocatalytic reactor for Bactericidal effect and heavy metals removal
Open accessAbstract
Chitosan is a nontoxic, eco-friendly, and biocompatible natural polymer which could be used in an extensive range of applications for example in the areas of membranes, biomedicine, hydrogels, wastewater treatment, food packaging. Moreover, chitosan based nanomaterials had high sorption capacities, chelating activities, stability, and versatility, that would be potentially applied as green reactants in various scientific and engineering applications. The current study involved the preparation of silver nanoparticles incorporated into chitosan thin films and used for various purposes including photo-oxidation of organic pollutants, heavy metal removal (Cd, Pb, Cr, and Fe) and antibacterial activity. The fabricated chitosan/silver (CS/Ag) bionanocomposites thin films were characterized by the ultraviolet-visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), and Fourier transforms infrared (FT-IR) spectroscopy. Furthermore, the prepared CS/Ag bionanocomposites had revealed good photodegradation rate, heavy metals removal and antimicrobial activity against gram-negative bacteria like E. coli , and gram-positive bacteria like G. bacillus, with increasing the loading of different concentrations of chitosan and silver nanoparticles incorporated into the prepared bionanocomposite thin films. Consequently, the prepared CS/Ag bionanocomposites are considered good candidates for wastewater treatment through photo-oxidation of organic pollutants, heavy metal removal as well as respectable antibacterial materials.
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A fabricated CS/silver bio-nano-composite (CS/PVDC/Ag) was utilized in a photocatalytic oxidation process for 97% Cu2+, 88% Pb2+, 89% Cd2+, and 77% dye removal.
“A fabricated CS/silver bio-nano-composites (CS/PVDC/Ag) was utilized in photocatalytic oxidation process for 97% Cu 2+ , 88% Pb 2+ , 89% Cd 2+ and 77% dye removal 130 .”
From Removal of heavy metal ions from wastewater: a comprehensive and critical review (2021) · cites this paper as [130]
The Results and discussion sections report 97% Cu(II), 88% Pb(II), and 89% Cd(II) removal at the 0.64% chitosan ratio, and 77% sodium fluorescein dye photodegradation with aeration. But the heavy-metal removal was measured by adsorption, not photocatalytic oxidation; the Conclusions distinguish adsorption of metals from photodegradation of dye. Page numbers are not available in our copy. (LLM, conf=0.91)
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References 36 · Cited by 119
- Authors
- Al-Sherbini, A.-S. A., Ghannam, H. E. A., El-Ghanam, G. M. A., El-Ella, A. A., & Youssef, A. M.
- Affiliations
- Cairo University (EG)
- National Institute of Oceanography and Fisheries (EG)
- National Research Centre (EG)
- Corresponding author
- Youssef, Ahmed M.
- Venue
- Heliyon
- Publisher
- Elsevier BV
- Published
- 2019-06
- Volume
- 5
- Issue
- 6
- Pages
- e01980
- ISSN
- 2405-8440 (ISSN-L)
- PMC
- PMC6600004
- OpenAlex
- W2953493712
- Cited by
- 119
- References
- 36
- Citations by year
- 2026: 1 · 2025: 34 · 2024: 15 · 2023: 16 · 2022: 21 · 2021: 17 · 2020: 12 · 2019: 2 · 2018: 1
- FWCI
- 3.69
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Heliyon (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Greater South Information System
- Topics
- Physical Sciences › Materials Science › Biomaterials › Nanocomposite Films for Food Packaging
- Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposite Synthesis and Irradiation
- Keywords
- chitosan, silver nanoparticles, bionanocomposites, thin films, photocatalysis, heavy metal removal, antibacterial activity, Escherichia coli, Gram-positive bacteria, wastewater treatment, cadmium, lead, chromium, iron
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