A highly efficient and magnetically retrievable functionalized nano-adsorbent for ultrasonication assisted rapid and selective extraction of Pd²⁺ ions from water samples

Abstract

A novel and highly efficient magnetic core shell based nanoadsorbent has been fabricated and applied for the extraction of Pd2+ ions.

Optimized Nickel-Cobalt and Nickel-Iron Oxide Catalysts for the Hydrogen Evolution Reaction in Alkaline Water Electrolysis

“…11 equal to its backward rate and insertion into Eq. 18 gives (see also Appendix A) [19] which predicts a Tafel slope and reaction order equal to b = −RT / (1 + α) F (or b = −2.303RT / (1 + α) F for a base-10 logarithm) and OH − = −1 at small negative values of E and b = −RT /αF and OH − = 0 large and negative E , consistent with Eq. 20 below.…”

Green and Mechanochemical One-Pot Multicomponent Synthesis of Bioactive 2-amino-4H-benzo[b]pyrans via Highly Efficient Amine-Functionalized SiO2@Fe3O4 Nanoparticles

“…Magnetization measurements were investigated at room temperature using a vibration sample magnetometer (VSM) at room temperature in the external magnetic range of −10 000 to +10 000 Oe. The magnetic hysteresis curves of MNPs, SMNPs, and ASMNPs indicated the super magnetic behavior of these nanoparticles . It is obvious from Figure a that the synthesized Fe 3 O 4 nanoparticles (MNPs) showed a saturation magnetization value of 56 emu/g, which decreased to 43 and 37 emu/g for SMNPs and ASMNPs, respectively (Figure b,c) NPs.…”

“…The magnetic hysteresis curves of MNPs, SMNPs, and ASMNPs indicated the super magnetic behavior of these nanoparticles. 44 It is obvious from Figure 12a that the synthesized Fe 3 O 4 nanoparticles (MNPs) showed a saturation magnetization value of 56 emu/g, which decreased to 43 and 37 emu/g for SMNPs and ASMNPs, respectively (Figure 12b,c) NPs. This decrease in saturation magnetization was attributed to the presence of nonmagnetic amorphous coatings of SiO 2 and functional groups over the surface of Fe 3 O 4 NPs.…”

Chemistry of magnetic covalent organic frameworks (MagCOFs): from synthesis to separation applications

“…126,127 Heavy metal ions, which are discharged into the water bodies through various effluents, are very fatal to the human health and surrounding environment as they tend to bioaccumulate through food chain. 128,129 Amongst all, mercury has been identified as one of the most hazardous environmental pollutants, exposure to which causes severe adverse health effects. 130 Hence, its periodic monitoring is imperative.…”