Succinate-bonded pullulan: An efficient and reusable super-sorbent for cadmium-uptake from spiked high-hardness groundwater.

An Innovative Nanosorbent Based on ZnO@Ag2O@Fe3O4 Nanocomposite- for Extraction and Preconcentration of Cd(II) Ions from Water Samples

In this study, a ZnO@Ag2O@Fe3O4 nanocomposite as an innovative magnetic solid phase extraction agent was introduced. The structural and morphological properties of the as-prepared nano-sorbent were characterized using X-ray diffraction analysis, Fourier transform infrared spectroscopy, field emission scanning electron microscopy and nitrogen adsorption–desorption techniques. The synthesized mag...

Evaluation of Factors Inf luencing Recovery of Herbicide 2,4-D from Drinking Water

Many modern analytical methods deal with the trace-level determination of compounds of interest in highly complex environmental samples by means of chromatographic techniques. The introduction of a “clean” sample into an analytical instrument can make analyses easier and prolongs the equipment life. The use of solid-phase extraction (SPE) has grown and is a fertile technique of sample prepa...

Polyethyleneimine-modified super paramagnetic Fe3O4 nanoparticles: An efficient, reusable and water tolerance nanocatalyst.

Polyethyleneimine-modified super paramagnetic Fe3O4 nanoparticles: An efficient, reusable and water tolerance nanocatalyst.

A novel magnetically immobilized polyethyleneimine (PEI) fabricated by covalently anchoring on silica coated Fe3O4 nanoparticles (PEI@Si-MNPs) was prepared. The synthesized catalyst was characterized by Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). The immobili...

Hydroxyapatite/Fe3O4 Nanocomposite as Efficient Sorbent for the Extraction of Phthalate Esters from Water Samples

In this study, we demonstrate the application of newly developed magnetic potassium substituted hydroxyapatite (KHA/Fe3O4) for the extraction of phthalate esters (PE) from water samples. Nanoparticles of KHA were synthesized through an easy alkoxide–based sol–gel technique. The structure of nanocomposite was characterized by X–ray diffraction (XRD), Fourier transform infrared (FTIR) analysis, a...