Facile synthesis of green and efficient copper-based magnetically recoverable nanocatalyst for the reduction of nitrophenol derivatives

Facile and green fabrication of copper‐based magnetically recoverable yolk–shell nanocatalysts with high catalytic performance for nitroaromatic reduction

“…k 0 were 3218 and 2023 s À1 g À1 for YS-SMNPs@CuO(G) and YS-SMNPs@CuO(L), respectively, which were significantly more than other previous works (Table 4). Cu NPs 1.59 0.13 [37] porous Cu microspheres 5.26 87.7 [38] hollow porous Cu NPs 9.3 186 [39] Hierarchical Cu microspheroids 4.65 15.5 [40] Cu nanoplates 9.5 136 [41] Cu/polymers 2.1 10.7 [42] Cu/carbon 24 40.4 [43] Cu/AC-600-1 13 13.0 [44] Cu 2 O-Cu-CuO 5.4 5.4 [45] CuO(G)/SMNPs 6.34 3,251 [31] CuO(L)/SMNPs 4.74 1,396 [31] YS-SMNPs@CuO(G) The Langmuir-Hinshelwood (LH) model was used for 4-NP reduction reaction (Scheme 3). In the first step, 4-NP is placed on the surface of the nanocatalyst through diffusion and absorption.…”

“…[30] In previous work, CuO(L)/SiO 2 @Fe 3 O 4 and CuO(G)/SiO 2 @Fe 3 O 4 nanocatalysts were synthesized for nitroarenes reduction. [31] In the peresent article, we reported a straightforward method for the preparation of yolk-shell-structured based CuO particles. Fe 3 O 4 @SiO 2 (SMNPs) were first prepared and then to incorporated copper oxide on the surface of Fe 3 O 4 @SiO 2 , lactose and glucose were used.…”