Magnetite incorporated amine-functional SiO2 support for bimetallic Cu-Ni alloy nanoparticles produced highly effective nanocatalyst

Impact of mesoporous SiO2 support for Ni/polypyrrole nanocomposite particles on their capacitive performance

“…Moreover, the –NH bending signal deviates to 1574 cm −1 following interaction with Ni nanoparticles. 52 The inclusion of Ni nanoparticles can also be ascertained from the deviation of SiO and Si–O–Si vibrations to 1072 and 781 cm −1 , respectively. The spectrum of the reference PPy (Fig.…”

Highly efficient recyclable bismuth nanocatalysts fabricated using a facile one-step aqueous method for faster reduction of azo dye contaminants

“…These observed efficiencies are clearly higher than our previously designed metal catalysts for the degradation of azo dye compounds. 17 The recyclable reduction efficiencies of Bi/TANPs were retained for MB (53%) and CR (56%) than that of the rst cycle even aer the 8th cycle.…”

“…6,7,11 To synthesize such raw materials, numerous metal catalysts including Pt, Au, Ag, Pd, Ru, Rh, Cu and their various compounds have been employed to accelerate the reduction of azo dyes in the presence of NaBH 4. 12–19 However, the precursors of these metal catalysts are not cost-effective, require multistep preparative procedures, use relatively expensive toxic reagents and solvents, and less feasible for real-time recyclable and practical applications. 16 Therefore, it is highly essential to design and develop easily accessible none noble metal-based alternative catalysts that are highly efficient, fast active, recyclable, low cost, and nontoxic to all living species as well as to the environment.…”

Mesoporous Fe3O4/SiO2/poly(2-carboxyethyl acrylate) composite polymer particles for pH-responsive loading and targeted release of bioactive molecules

“…By applying an external magnetic field, it is possible to keep magnetic particles confined to a certain organ for a specific duration, preventing the particles from spreading throughout the entire circulatory system. The application potential of magnetic iron oxide particles is extensive, encompassing diverse areas such as controlled drug delivery, 28 DNA separation, 29 protein purification, 30 catalysis, 31 hyperthermia in tumor tissues, 32 and magnetic resonance imaging (MRI). 33 These magnetic particles can be readily manipulated by the application of an external magnetic field during use.…”