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  1. Pubblicazioni

Dextrin-Based Adsorbents Synthesized via a Sustainable Approach for the Removal of Salicylic Acid from Water

Articolo
Data di Pubblicazione:
2023
Abstract:
: Pharmaceuticals such as salicylic acid are commonly detected in wastewater and surface waters, increasing concern for possible harmful effects on humans and the environment. Their difficult removal via conventional treatments raised the need for improved strategies, among which the development of bioderived adsorbents gained interest because of their sustainability and circularity. In this work, biobased cross-linked adsorbents, synthesized via a sustainable approach from starch derivatives, namely beta-cyclodextrins and maltodextrins, were at first characterized via FTIR-ATR, TGA, SEM, and elemental analysis, showing hydrophilic granular morphologies endowed with specific interaction sites and thermal stabilities higher than 300 °C. Subsequently, adsorption tests were carried out, aiming to assess the capabilities of such polymers on the removal of salicylic acid, as a case study, from water. Batch tests showed rapid kinetics of adsorption with a removal of salicylic acid higher than 90% and a maximum adsorption capacity of 17 mg/g. Accordingly, continuous fixed bed adsorption tests confirmed the good interaction between the polymers and salicylic acid, while the recycling of the adsorbents was successfully performed up to four cycles of use.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
adsorption; biobased polymers; dextrins; emerging contaminants; sustainable synthesis
Elenco autori:
Cecone, Claudio; Iudici, Mario; Ginepro, Marco; Zanetti, Marco; Trotta, Francesco; Bracco, Pierangiola
Autori di Ateneo:
BRACCO Pierangiola
CECONE Claudio
GINEPRO Marco
TROTTA Francesco
ZANETTI Marco
Link alla scheda completa:
https://iris.unito.it/handle/2318/1942054
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1942054/1207270/nanomaterials-13-02805-v2_ridimensionato.pdf
Pubblicato in:
NANOMATERIALS
Journal
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Settori (3)


PE5_14 - Macromolecular chemistry - (2022)

PIANETA TERRA, AMBIENTE, CLIMA, ENERGIA e SOSTENIBILITA' - Chimica e Ambiente

SCIENZE MATEMATICHE, CHIMICHE, FISICHE - Materiali Avanzati
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