Engineering of cobalt sulfide (Co5S2) microcubes for selective catalytic hydrogenation of nitroarenes and enhanced calorific value of fuel

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

“…In the absence of a catalyst, no change in absorbance was observed for hours, indicating the catalyst's crucial role in reducing organic compounds. 164 Fig. 22 presents degradation mechanism of crystal violet, methylene red and crystal red.…”

Comparative investigation of the catalytic application of α/β/γ-MnO 2 nanoparticles synthesized by green and chemical approaches

“…Reduction time of 2,4-DNP is highest among other substrates because two nitro-groups are present one is present at ortho which form hydrogen bonding with hydroxyl group of phenolic part of the compound which stabilizes the structure, due to which adsorption of substrates over catalyst takes more time that's why substrate takes longer time to reduce. Reduction time of MB is lowest because nitrogen of azo group is present at the outside of the ring and accessibility of the catalyst is increase towards the substrate and reactivity is enhanced therefore its reduction time is lowest [25]. The plot of reduction time versus substrates by using Product B as a catalyst is given in Fig.…”

Fabrication of cationic microgels doped MnO2/Fe3O4 nanocomposites, and study of their photocatalytic performance and reusability in organic transformations

“…NPs are the particles having sizes in the range of 1–100 nm, and show different properties from the molecules in bulk sample of the same materials. NPs have numerous applications in various fields such as catalysis, drug delivery, fuel additive, and ultra‐sensing 8–18 . Organic dyes, nitro arenes, and other organic compounds such as dimethyl amino benzaldehyde (DMAB) are catalytically reduced by NPs of silver, chromium, nickel, iron‐nickel and copper, with the help of reducing agents 19–23 .…”

“…NPs have numerous applications in various fields such as catalysis, drug delivery, fuel additive, and ultrasensing. [8][9][10][11][12][13][14][15][16][17][18] Organic dyes, nitro arenes, and other organic compounds such as dimethyl amino benzaldehyde (DMAB) are catalytically reduced by NPs of silver, chromium, nickel, iron-nickel and copper, with the help of reducing agents. [19][20][21][22][23] On the other hand, NPs have some major limitations viz., agglomeration, sedimentation, and sustainability of surface volume ratio.…”