Thermoplastic starch (TPS)-based composite films for wastewater treatment: synthesis and fundamental characterization.
Khadiga Mohamed AbasAmina Abdel Meguid AttiaPublished in: BMC chemistry (2023)
Modification of starch is a potential basic research aiming to improve its water barrier properties. The general purpose of this study is to manufacture cross-linked iodinated starch citrate (ISC) with a degree of substitution (DS) ≈ 0.1 by modifying native corn starch with citric acid in the presence of iodine as an oxidizing agent. Thermoplastic starch (TPS) was generated with urea as a plasticizer and blended with various concentrations of ISC of (2, 4, 6%) (wt/wt) to obtain (UTPS/ISC 2 , UTPS/ISC 4 , and UTPS/ISC 6 ). Nanocomposite film was formed from UTPS/ISC 2 in presence of stabilized iodinated cellulose nanocrystals UTPS/ISC 2 /SICNCs via gelatinization at a temperature of 80ºC. Water solubility and water vapor release were studied amongst the water barrier features. The fabricated starch-based composite films were evaluated utilizing Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electronic Microscope analysis (SEM), surface area, and tensile measurements. The adsorption of crystal violet (CV) dye onto produced samples was examined in an aqueous solution. The findings revealed that the UTPS/ISC 2 /ISCNCs has 83% crystal violet elimination effectiveness. Moreover, the adsorption isotherms were assessed and figured out to vary in the order of Langmuir > Temkin > Freundlich > Dubinin-Radushkevich.
Keyphrases
- aqueous solution
- wastewater treatment
- room temperature
- lactic acid
- randomized controlled trial
- computed tomography
- systematic review
- antibiotic resistance genes
- carbon nanotubes
- magnetic resonance
- reduced graphene oxide
- gold nanoparticles
- magnetic resonance imaging
- solid state
- single cell
- quantum dots
- highly efficient
- data analysis
- dual energy