Hierarchical copper nanocomposites and their applications for catalytic reduction of o-nitroaniline to 1,2-benzenediamine and sensor activities against oxytocin

Para-nitroaniline (PNA) and ortho-nitroaniline (ONA) have been considered as highly toxic contaminants in the aqueous solution, which must be treated. In the current investigation, novel magnetic nanocomposites containing copper ferrite (CuFe2O4) and gelatin-derived carbon quantum dots (CQDs) were successfully synthesized. The prepared nano catalyst was characterized by SEM, XRD, TEM, BET, FT-IR, and UV-Vis techniques. The mesoporous structure rife with mesopores of the CuFe2O4/CQD nanocomposite was shown employing the BET/BJH technique. The catalytic performance of the nano catalyst during the reduction of PNA and ONA was assessed in an aqueous medium at 25°C. The complete reduction of PNA and ONA using CuFe2O2/CQDs nanocomposite occurred in 13 s and 35 s, respectively. The pseudo-second-order constant rates (Kapp) were obtained as 2.89×10-1 s-1 and 9.3×10-2 s-1 for reducing PNA and ONA, respectively. Moreover, the magnetic nano catalyst was easily separated from the reaction solution and recycled for up to six consecutive cycles without significant loss of catalytic activity.

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Hierarchical copper nanocomposites and their applications for catalytic reduction of o-nitroaniline to 1,2-benzenediamine and sensor activities against oxytocin

Cited by 3 publications

References 39 publications

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Facile copper ferrite/carbon quantum dot magnetic nanocomposite as an effective nanocatalyst for reduction of para-nitroaniline and ortho-nitroaniline

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