Synthesis and applications of chitosan mercaptanes as heavy metal retention agent
Abstract
Chitosan, poly-beta(1-->4)-2 amino-2-deoxy-D-Glucopyranose is a biopolymer obtained by extensive deacetylation of chitin [poly-beta(1-->4)-2-acetamide-2-deoxy-D-Glucopyranose], main constituent of crustacean shells. The present study was carried out using crab shells from nylon shrimps (Heterocarpus reedi). Despite the abundance of raw material in our environment, little work has been published in this field using derivatives. The main goal of this work is to develop a good method to prepare chitosan mercaptanes derivatives using mercaptoacetic acid and 1-chloro-2,3-epoxy propane propionic acid. The evaluation of the retention capacities using several concentrations of copper and mercury solutions with concentrations ranging from 10 to 104 ppm at pH 2.5 and 4.5 are tested. A comparison of the absorption isotherms with Langmuir isotherms is also reported. Full characterization of the derivatives was carried out using FTIR, elemental analysis and TGA. The morphology of chitosan and derivatives is compared before and after treating polymers with mercury and copper ions.
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Early filter materials for heavy metal adsorption included peanut hulls, chitosan, zeolite, and mulch, and recent materials include calcite, sand, iron fillings, nanoscale metal oxides, zero-valent iron, biochar, or combinations of these materials.
“early research of filter materials used for the adsorption of heavy metals included peanut hulls, chitosan, zeolite, and mulch [6][7][8], and recent materials used for heavy metal adsorption are calcite, sand, iron fillings, nanoscale metal oxides, zero-valent iron, biochar, or combinations of these materials [9][10][11].”
From Application of Biochar in Stormwater Treatment: Experimental and Modeling Investigation (2021) · cites this paper as [6]
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Spectrometric Identification of Organic Compounds
Silverstein, R. M., & Bassler, G. C. (1962) · Journal of Chemical Education · doi:10.1021/ed039p546 · Cited by 14,272 · see citing works
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Application of Biochar in Stormwater Treatment: Experimental and Modeling Investigation
Hasan, M. S., Vasquez, R., & Geza, M. (2021) · Processes · doi:10.3390/pr9050860 · Cited by 16 · see citing works
- Authors
- Cárdenas, G., Orlando, P., & Edelio, T.
- Affiliations
- University of Concepción (CL)
- Corresponding author
- Cárdenas, Galo
- Venue
- International Journal of Biological Macromolecules
- Publisher
- Elsevier BV
- Published
- 2001-01
- Volume
- 28
- Issue
- 2
- Pages
- 167-174
- ISSN
- 0141-8130 (ISSN-L)
- OpenAlex
- W2092854858
- Cited by
- 114
- References
- 1
- Citations by year
- 2026: 1 · 2025: 4 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 6 · 2018: 3 · 2017: 5 · 2016: 4 · 2015: 8 · 2014: 1 · 2013: 4 · 2012: 6
- FWCI
- 12.38
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Biological Macromolecules (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Synthesis and Characterization
- Physical Sciences › Materials Science › Biomaterials › Nanocomposite Films for Food Packaging
- Keywords
- chitosan, chitosan derivatives, heavy metal retention, mercury removal, copper removal, thioglycolic acid, crab shell, adsorption isotherms, Langmuir isotherm, biopolymer adsorbents
- MeSH terms
- Adsorption, Animals, Chitin, Copper, Hydrogen-Ion Concentration, Ions, Mercury, Microscopy, Electron, Scanning, Models, Chemical, Polymers, Propionates, Temperature, Thioglycolates, Spectroscopy, Fourier Transform Infrared, Metals, Heavy, Decapoda, Chitosan
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