Fe₃O₄‐supported sulfonated graphene oxide as a green and magnetically separable nanocatalyst for synthesis of 2-amino-3-cyano-4H-chromene derivatives and their in-silico studies

Facile synthesis of magnetically separable copper ferrite infused sulfonated graphene oxide nanocomposite with antimicrobial evaluation and photocatalytic performance under visible light

“…After that, the mixture was continuously stirred in an oil bath heated to 70 C. The combination was then given a 25 mg addition of sulfanilic acid. 29,32 The sample was regularly stirred for 12 h, then rinsed three times by means of distilled water before being dried at 70 C for almost 6 h.…”

“…Reflection peaks of SGO was observed at 24.80 , 44.25 . 29,32 XRD data of CuFe 2 O 4 showed the positions of peaks at 2θ = 35.4 , 43.3 , 53.6 , 57.1 , and 62.7 . 38 The XRD data of CuFe 2 O 4 @SGO nanocomposite exhibited peaks at corresponding to both SGO and CuFe 2 O 4 .…”

“…As shown in Figure 4, the TGA spectra of SGO depicted a thermal deterioration, with weight loss of 27% around 100 C due to evaporation of water molecules from the surface and 78% weight loss at 400 C is observed as a result of the burning of SGO's carbon skeleton. 29,39 TGA data of CuFe 2 O 4 depicted weight loss around 14% at 100 C which was caused by the elimination of water molecules that had been trapped on the surface of the nanoparticles and 89% weight loss at 400 C is observed due to breakdown of organic materials and creation of crystallization of spinel phase. 40 Data of CuFe 2 O 4 @SGO showed a loss in weight around 20% at 100 C which is caused by the elimination of water molecules, 85% at 400 C is due to combustion of lattice structure.…”

“…SGO image shows the appearance solid crumbs on surface. 29,41 CuFe 2 O 4 displayed close intermingled spherical grains are like structure due to cluster formation of nanoparticles. 42 CuFe 2 O 4 @SGO depicts the appearance of homogenously distributed solid spherical structures.…”

“…27,28 We have previously successfully synthesized Fe 3 O 4 -doped SGO nanocomposite. 29 In continuation to this study, herein we have designed a new type of copper ferrite@ SGO nanocomposite through coprecipitation method. Photocatalytic action of CuFe 2 O 4 @SGO has been assessed for the deterioration of methyl violet 2B dye through visible light exposure without the use of hydrogen peroxide (H 2 O 2 ) and in a comparatively rapid time.…”