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Publisher DOI: 10.3390/w14091353
Title: Some well-known alginate and chitosan modifications used in adsorption : a review
Language: English
Authors: Benettayeb, Asmaa 
Ghosh, Soumya 
Usman, Muhammad  
Seihoub, Fatima Zohra 
Ihsanullah, Sohoo  
Chia, Chin Hua 
Sillanpää, Mika 
Keywords: sorption; alginate; chitosan; functionalization; copolymerization; cross-linking
Issue Date: 21-Apr-2022
Publisher: Multidisciplinary Digital Publishing Institute
Source: Water 14 (9): 1353 (2022)
Abstract (english): 
Owing to environmental pollution and increasingly strict regulations, heavy metals have attracted the attention of many researchers in various disciplines. Alginate and chitosan derivatives have gained popularity as biosorbents for water treatment. An increase in the number of publications on modified biosorbents for the biosorption of toxic compounds reveals widespread interest in examining the requirements and positive contribution of each modification type. This paper reviews the advantages and disadvantages of using alginate and chitosan for adsorption. Well-known modifications based on chitosan and alginate, namely, grafting, functionalization, copolymerization and cross-linking, as well as applications in the field of adsorption processes, especially amino acid functionalization, are reviewed. The selection criteria for the best biosorbents and their effectiveness and proposed mechanism of adsorption are discussed critically. In the conclusion, the question of why these adsorbents need modification before use is addressed.
DOI: 10.15480/882.4315
ISSN: 2073-4441
Journal: Water 
Other Identifiers: doi: 10.3390/w14091353
Institute: Wasserressourcen und Wasserversorgung B-11 
Umwelttechnik und Energiewirtschaft V-9 
Document Type: Article
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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