Visible light photocatalytic degradation of textile waste water by Co doped NiFe2O4 nanocomposite

Magnetic Co‐doped NiFe2O4 Nanocomposite: A Heterogeneous and Recyclable Catalyst for the One‐Pot Synthesis of Benzimidazoles, Benzoxazoles and Benzothiazoles under Solvent‐Free Conditions

“…The average crystal sizes of the nanoparticles were determined from the XRD data with the Debye–Scherrer formula where λ is the X‐ray wavelength, β is the full width at half‐maximum (FWHM) of the considered peak, and θ is the Bragg angle. This gave D = 33.25 nm for pure Ni 0.6 Co 0.4 Fe 2 O 4 …”

“…The magnetic Co‐doped NiFe 2 O 4 nanocatalyst was synthesized according to our previously published method . The crystal structure and phase purity of the as‐prepared samples were studied by X‐ray powder diffraction (XRD) patterns of Ni 1– x Co x Fe 2 O 4 ( x = 0.4) (Figure ).…”

“…Our previous published study on the synthesis and use of Co‐doped NiFe 2 O 4 prompted us to explore another aspect of the Co‐doped NiFe 2 O 4 as magnetic nanocatalysts for the synthesis of benzimidazoles, benzoxazoles, and benzothiazoles from the reaction between o ‐phenylenediamine, o ‐aminophenol, o ‐aminothiophenol and a variety of substituted benzaldehydes under solvent‐free conditions at 70°C (Scheme ).…”

“…Co‐doped NiFe 2 O 4 magnetic nanocomposite was synthesized according to a previous published method . In a typical experiment, NiCl 2 (1.2 mmol), CoCl 2 (0.8 mmol), and FeCl 3 (4 mmol) were dissolved in distilled water (30 mL), then isoamyl alcohol (10 mL) was added to it, and the volume of solution was made up to 50 mL with distilled water.…”

“…A magnetic Co‐doped NiFe 2 O 4 nanocomposite was synthesized in our previous work that showed high photocatalytic activity for the degradation of some textile dyes . Therefore, we have sought its application as catalyst for organic reactions.…”