Work

Ionic gelation synthesis, characterization and adsorption studies of cross-linked chitosan-tripolyphosphate (CS-TPP) nanoparticles for removal of As (V) ions from aqueous solution: kinetic and isotherm studies

Year: 2021

Type: article

Abstract: The CS-TPP nanoparticles were synthesized and their efficiency for removal of arsenic (V) ions at the optimum conditions was investigated. The optimum conditions for CS-TPP nanoparticles were obtained with the mass ratio of tripolyphosphate to chitosan of 1: 2 and pH = 5.0. The experimental data for the adsorption of As (V) ions followed the Freundlich adsorption isotherm and the maximum adsorption capacity was 77 mg/g at pH = 6.0. All isotherm experiments were performed at room temperature (25 °C). The crosslinking of sodium tripolyphosphate with the chitosan led to a decrease in crystallinity of the formed particles which then resulted in an improvement in metal ion sorption properties.

Source: Toxin Reviews

DOI: 10.1080/15569543.2021.1933532

Authors: Farshad Hamidi, Mojtaba Azadi Aghdam, Fatemeh Johar, Mohammad Hadi Mehdinejad, Abbas Norouzian Baghani

Institutions: Golestan University of Medical Sciences, University of Arizona, Tarbiat Modares University, Tehran University of Medical Sciences

Language: English

Topic: Arsenic contamination and mitigation

Subfield: Environmental Chemistry

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: green

Funder: Golestan University of Medical Sciences