Details

Autor(en) / Beteiligte

• Bhat, Shahnawaz Ahmad
• Zafar, Fahmina
• Mirza, Azar Ullah
• Singh, Paramjit
• Mondal, Aftab Hossain
• Nishat, Nahid

Titel

Nanovertenergie: Bactericidal polymer nanocomposite beads for carcinogenic dye removal from aqueous solution

Ist Teil von

• Journal of molecular structure, 2023-07, Vol.1284, p.135232, Article 135232

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Synthesis of Melamine Formaldehyde (MF), PVA/MF blend and PVA-MF/Cu nanocomposites•Polymer nanocomposites were characterized by various analytical techniques like FTIR, ATR-FTIR, UV, XRD, contact angle and SEM.•Swelling, bio degradation and hydrophobic studies of polymer nanocomposites.•Dye adsorption of Congo red by polymer nanocomposites and the factors affecting the dye adsorption.•Anti-bacterial activity against E. coli, K. pneumonia, B. subtilis and S. aureus bacterial strains by PVA/MF blend and PVA-MF/Cu nanocomposites films. This project stresses the current problems in the industrial revolution and the increasing demand for new products due to the population explosion. In the race for industrialization, the production unlimited byproducts and discharge of harmful gases in the atmosphere, discharging harmful sewage into fresh water resources and dumping of harmful waste in the soil. Polymer nanocomposites enable an eco-friendly environment that is dignified to be far for efficient than the current strategies, and likewise, anti-bacterial, and water treatment holds the future. Here, the design and development of polymer nanocomposite based on polyvinyl alcohol cross-linked with melamine-formaldehyde doped with Cu nanoparticles. The electrostatic interaction between polymer matrixes increases the chemical stability after doping Cu nanoparticles. The chemical stability order of polymer nanocomposites was confirmed by contact angle (58-90o) in water> NaOH> HCl. The polymer nanocomposite films were analyzed for the Congo red (CR) dye adsorption using Batch adsorption methods. Three parameters were used to determine dye adsorption by contact time, pH, and the dye concentration of CR dye. The dye adsorption analysis reveals that CR dye adsorption increases in polymer nanocomposite films from (C1-C5). CR dye adsorption increase with respect to contact upto 80% mg L−1, but the adsorption percentage decreases (68-13%) as the pH (4-10) increases values. The anti-bacterial results reveal that the inhibition against B. subtilis 736 and S. aureus is 40 mm and 35 mm, respectively, after the encapsulation of Cu nanoparticles. The present study launched a positive effort to design and develop an eco-friendly, very efficient, and safe synthesis of nanomaterials with unparalleled properties like waste water treatment discharge from textile industries for cleaner production, bactericidal, and packing industries. [Display omitted]