Formation of Molybdenum Blue Nanoparticles in the Organic Reducing Area

Abstract

Molybdenum blue dispersions were synthesized by reducing an acidic molybdate solution with glucose, hydroquinone and ascorbic acid. The influence of the H/Mo molar ratio on the rate of formation of molybdenum particles was established. For each reducing agent, were determined the rate constant and the order of the particle formation and were established the conditions for the formation of aggregative stable dispersion with the maximum concentration of particles. The dispersed phase is represented by toroidal molybdenum oxide nanoclusters, which was confirmed by the results of UV/Vis, FTIR, XPS spectroscopy and DLS.

Photochromic properties of novel composites on the base of biopolymers and plasma‐modified Mo4O11 and W18O49 nanostructures

“…In this case, the particles are present in the form of clusters of a toroidal structure. The presence of an absorption band with a maximum at 937 nm indicates that the reduction process occurs under the action of light quanta and not chemical reagents 30,31 . The appearance of absorption bands in the ranges of 770–1000 and 900–1300 nm are responsible for two types of charge transfer between Mo 6+ and Mo 5+ by different types of molybdenum‐oxygen bonds in the MoO 6 octahedron 32 …”

“…The presence of an absorption band with a maximum at 937 nm indicates that the reduction process occurs under the action of light quanta and not chemical reagents. 30,31 The appearance of absorption bands in the ranges of 770-1000 and 900-1300 nm are responsible for two types of charge transfer between Mo 6+ and Mo 5+ by different types of molybdenum-oxygen bonds in the MoO 6 octahedron. 32 The tungsten oxide sols are characterized by the presence of three poorly resolved bands with maxima at 640, 790, and 960 nm (Figure 4B).…”

Comparative Study of Physicochemical Characteristics and Catalytic Activity of Copper Oxide over Synthetic Silicon Oxide and Silicon Oxide from Rice Husk in Non-Oxidative Dehydrogenation of Ethanol

“…The broad absorption band in the range of 2700-3620 cm −1 refers to the valency vibrations of the water molecule. Absorption bands were in the range of 1500-1790 cm −1 to deformation vibrations of the water molecule [42]. The absorption bands 795 and 1049 cm −1 , characteristic of silicon oxide, are also observed on the SiO 2 (RH) sample, indicating the presence of a Si-O and Si-O-Si bond [43].…”

Removal of Molybdenum from Contaminated Groundwater Using Carbide-Derived Carbon

“…Likewise, the presence of Mo in the FTIR spectra of the CDC samples after adsorption can be observed in Figure 8. The peaks at 597 and 898 cm −1 were reported in the literature to correspond to the stretching vibrations of Mo-O and Mo=O, respectively [41,42]. The Mo The corresponding functional groups on the CDC were determined by FTIR analysis.…”