Synthesis of Bi2WO6 nanoplates using oleic acid as a green capping agent and its application for thiols oxidation

Abstract

Bi 2 WO 6 nanoplates were synthesized by a simple one-step hydrothermal method using oleic acid (OA) as a green and cheap capping agent. The X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) were used to characterize the products. The interaction between the precursor product and oleic acid was studied by Fourier Transform Infrared (FT-IR). In addition, the catalytic activity of prepared Bi 2 WO 6 for the oxidation of thiols to disulfides as an important reaction in both biological and chemical processes was investigated. It was found to be an efficient catalyst for the selective oxidation of thiols to the corresponding disulfides, without over-oxidation, at room temperature.

Role of Biogenic Capping Agents in the Synthesis of Metallic Nanoparticles and Evaluation of Their Therapeutic Potential

“…From the SEM images, the particles were predicted to possess an average thickness of 90 nm along with an approximate width of 100-300 nm. It was determined from the FTIR research that oleic acid was chemically adsorbed via hydrogen-bonded carbonyl functional groups (Figure 4) on the Bi 2 WO 6 surface, and also, there might be physical adsorption of oleic acid onto the nanotubes through van der Waals forces (Rahimi et al, 2016). In a similar study, Lu et al (2008) compared the synthesis of magnetic Co nanoparticles using three long-chain acids-oleic, elaidic, and stearic acids-as capping agents.…”

Study of photocatalytic activity of Bi2WO6 tire‐like microstructure

“…The mechanism of the formation has been discussed in detail in our previous paper. [39] The optical absorption property is a key factor controlling the photocatalytic performance of a photocatalyst. Figure 3 shows the UV-visible absorption spectra of the as-prepared Bi 2 WO 6 sample.…”

“…All chemicals were of analytical grade and used without further purification. Bi 2 WO 6 tire-like microstructure was synthesized by the hydrothermal method, which previously has been reported by our group as follows [39] : 1.9 mmol g of Bi(NO 3 ) 3 Á5H 2 O was dissolved into a 60 ml NaNO 3 solution and stirred for 10 min at 75 C. Then 0.6 mmol of Na 2 WO 4 Á2H 2 O was dissolved in 24 ml deionized water and added dropwise into the above solution. After 2 hr, 10 ml oleic acid was added into the above solution and stirred for 30 min.…”

Production of New Surfactant-free Microemulsion Biofuels: Phase Behavior and Nanostructure Identification

“…Oleic acid is obtained from various animal and vegetable oils , and has been widely used to synthesize biofuel. , As a bioether, methyl tert -butyl ether (bio-MTBE) can be produced by dehydration of biomethanol. , To increase oxygen content, methyl tert -butyl ether (MTBE) is exclusively added to gasoline as an oxygenate substance. , 1-Octanol is obtained from glucose by a microbial process , and biomass-derived furfural–acetone . 1-Octanol is investigated as an additive for biodiesel production. ,− It has also been utilized as a cosurfactant to assist in the preparation of microemulsion biofuels .…”

“…20−26 These oxygenated additives are quite important for production of new environmentally friendly fuels. 27−34 Oleic acid is obtained from various animal and vegetable oils 35,36 and has been widely used to synthesize biofuel. 17,19 As a bioether, methyl tert-butyl ether (bio-MTBE) can be produced by dehydration of biomethanol.…”