Removal of Ni(II) Ions by Poly(Vinyl Alcohol)/Al2O3 Nanocomposite Film via Laser Ablation in Liquid

Fatemah H Alkallas; Hoda A Ahmed; Tahani A Alrebdi; Rami Adel Pashameah; Salhah H Alrefaee; Emaan Alsubhe; Amira Ben Gouider Trabelsi; Ayman M Mostafa; Eman A Mwafy

doi:10.3390/membranes12070660

Removal of Ni(II) Ions by Poly(Vinyl Alcohol)/Al₂O₃ Nanocomposite Film via Laser Ablation in Liquid

Membranes (Basel). 2022 Jun 27;12(7):660. doi: 10.3390/membranes12070660.

Authors

Affiliations

¹ Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
² Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt.
³ Chemistry Department, College of Sciences, Taibah University, Yanbu 30799, Saudi Arabia.
⁴ Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 24230, Saudi Arabia.
⁵ Physics Department, Faculty of Science, Taibah University, Yanbu 30799, Saudi Arabia.
⁶ Spectroscopy Department, Physics Division Institute, National Research Centre, 33 El Bohouth St. (Former El Tahrir st.), Dokki, Giza 12622, Egypt.
⁷ Laser Technology Unit, Center of Excellent for Advanced Science, National Research Centre, 33 El Bohouth st. (Former El Tahrir St.), Dokki, Giza 12622, Egypt.
⁸ Physical Chemistry Department, Advanced Materials Technology and Mineral Resources Research Institute, National Research Centre, Giza 12622, Egypt.

Abstract

Al₂O₃-poly(vinyl alcohol) nanocomposite (Al₂O₃-PVA nanocomposite) was generated in a single step using an eco-friendly method based on the pulsed laser ablation approach immersed in PVA solution to be applicable for the removal of Ni(II) from aqueous solution, followed by making a physicochemical characterization by SEM, XRD, FT-IR, and EDX. After that, the effect of adsorption parameters, such as pH, contact time, initial concentration of Ni(II), and medium temperature, were investigated for removal Ni(II) ions. The results showed that the adsorption was increased when pH was 5.3, and the process was initially relatively quick, with maximum adsorption detected within 90 min of contact time with the endothermic sorption process. Moreover, the pseudo-second-order rate kinetics (k₂ = 9.9 × 10^-4 g mg^-1 min^-1) exhibited greater agreement than that of the pseudo-first-order. For that, the Ni(II) was effectively collected by Al₂O₃-PVA nanocomposite prepared by an eco-friendly and simple method for the production of clean water to protect public health.

Keywords: Al2O3; NPs; Nd:YAG; PLAL; laser ablation; nanocomposite.

Grants and funding

PNURSP2022R38/Princess Nourah bint Abdulrahman University