Aqueous solution

Chemistry

Materials science

Polyurethane

Coating

Nanocomposite

Starch

Organic chemistry

Surface modification

Desorption

Chemical engineering

Polymer

Adsorption

Engineering

Composite material

Journal of Cleaner Production

Poor surface characteristics and mechanical strength have impeded the industrial utilization of starch-based polymers for wastewater treatment. Though miniaturization of adsorbent materials to nano-scale level, has improved the surface area of materials, nano-scale adsorbents often form stable colloidal suspension/emulsion, and thus pose separation challenges. This study was designed to develop a novel starch-based magnetic polyurethane polymer for removal of tetracycline antibiotics from water media. Magnetic starch was synthesized by in-situ co-precipitation of Fe2+ and Fe3+ in the presence of starch, and thereafter subjected to one-step reticulation with 4,4-methylene diphenyl diisocyanate to produce magnetic starch polyurethane polymer nanocomposite (MSPP). The characterization studies with FTIR, SEM, TEM, XRD, VSM, BET, and XRF indicated successful synthesis. The characterization, adsorption isotherm and pH studies indicated π-π and π-cation interaction as possible adsorption interactions. Besides optimi...

Development of sustainable magnetic polyurethane polymer nanocomposite for abatement of tetracycline antibiotics aqueous pollution: Response surface methodology and adsorption dynamics