Development of Arabic gum-based AgTiO nanocomposite hydrogel as high efficient adsorbent of cationic dye methylene blue from water.

Int J Biol Macromol

Packaging Materials, National Research Centre, 33 El Bohouth St. (former El Tahrir st.), Dokki, Cairo, Egypt.

Published: December 2021

The chemically crosslinked silver titanium dioxide embedded Arabic gum grafted polyacrylamide-polyacrylonitrile nanocomposite AgTiO@AG-g-P(AM-co-AN)was successfully synthesized and investigated by ATR-IR, XRD, and SEM. The synthesis optimization parameters of AG-g-P(AM-co-AN)were 5% AG, 1/0.5 AM/AN monomer molar ratio, 0.5 mg MBA cross-linker, and AgTiO content (1%) gives AgTiO@AG-g-P(AM-co-AN) nanocomposite. While adsorption studies for AgTiO@AG-g-P(AM-co-AN) exhabited the maximum adsorption capacity (104.50 ± 3.02 mg/g) at concentration (150 mg/L), MB concentration (15 mg/L) and pH (8.0). The adsorption nonlinear kinetics models were used. Pseudo-second order governs the adsorption process, and the Langmuir model is more suited than Freundlich and Temkin.

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http://dx.doi.org/10.1016/j.ijbiomac.2021.11.018DOI Listing

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