Preparation of magnetic porous NiFe₂O₄/SiO₂ composite xerogels for potential application in adsorption of Ce(iv) ions from aqueous solution

Abstract

In this work, a novel magnetic porous adsorbent was prepared via a sol–gel method for the removal of Ce(iv) from aqueous solution.

In vitrocytotoxicity and antibiotic application of green route surface modified ferromagnetic TiO2nanoparticles

“…3b are due to the vibration of Ti-O-Ti and Si-O-Si, respectively. 33,36 The vibration band of Ti-O-Ti rmly proves the formation of TiO 2 NPs.…”

Development of perfluorosulfonic acid polymer‐based hybrid composite membrane with alkoxysilane functionalized polymer for vanadium redox flow battery

“…The peaks positioned at 1734, 1626, and 1546 cm −1 correspond to the urethane peaks. 38,39 In addition, the peaks obtained in the range of 3250 to 3500 cm −1 , 2884 to 3000 cm −1 , 1618 cm −1 , and 953 to 1100 cm −1 are related to the N─H bending, stretching vibration of CH, CH 2 , and CH 3 , COO bending, and Si─O─Si stretching in ASFP. 40,41 In FTIR spectrum, the NCO peak was observed at 2363 cm −1 , which indicates the crosslinking reaction between TDI with OH groups of DMBA and amine group of APTES.…”

“…The FTIR analysis spectra of as‐synthesized ASFP are shown in Figure A. The peaks positioned at 1734, 1626, and 1546 cm −1 correspond to the urethane peaks . In addition, the peaks obtained in the range of 3250 to 3500 cm −1 , 2884 to 3000 cm −1 , 1618 cm −1 , and 953 to 1100 cm −1 are related to the N─H bending, stretching vibration of CH, CH 2 , and CH 3 , COO bending, and Si─O─Si stretching in ASFP .…”

Hydroxyapatite-PEG/Fe₃O₄ Composite for Adsorption of Phenol from Aqueous Solution

“…Recently, magnetic adsorbents draw attention for their usage for adsorbing and separating pollutants from wastewater. Modification of various adsorbents has been conducted to obtain magnetic ones including fly ash-CoFe 2 O 4 to adsorb Malachite green dye [13], activated carbon-CuFe 2 O 4 to adsorb Orange acid (II) dye [14], activated carbon-CuFe 3 O 4 to remove Procion red dye [15], and NiFe 2 O 4 /SiO 2 to adsorb Ce(IV) [16]. Magnetic properties created on the adsorbents can increase the separation efficiency using a permanent magnet, the process of separating the adsorbent from the solution takes place quickly, and no filtration is necessary after wastewater treatment [17].…”