Synthesis of MoOx nanostructures with the assistance of polymeric surfactants for dye removal from water

Tahmasebi, Nemat; Khalildashti, Marzieh

doi:10.1007/s11814-019-0469-6

Cited by 17 publications

(2 citation statements)

References 43 publications

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“…The peaks from 1550 to 1700 cm −1 were assigned to stretching vibrations of the attached CONH groups (CO and linkage of CONH groups). [ 59 ] The peaks from 500 to 880 cm −1 related to the MoOMo stretching vibration, and the range from 950 to 1000 cm −1 were assigned to the characteristic bonds of MO. [ 60 ] Furthermore, Three peak shifts of F‐MoO 3 can be observed at 945, 1049, and 1153 cm −1 , which suggests partly MoO bonds broken and attached by functional groups.…”

Section: Resultsmentioning

confidence: 99%

Functionalized MoO₃ Nanosheets for High‐Efficiency RhB Removal

Wang

Liú

et al. 2022

Global Challenges

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2D nanostructured materials have been applied for water purification in the past decades due to their excellent separation and adsorption performance. However, the functional 2D nanostructured molybdenum trioxide (MoO3)has rarely been reported for the removal of dyes. Here, functionalized MoO3 (F‐MoO3) nanosheets are successfully fabricated with a high specific surface area (106 cc g−1) by a one‐step mechanochemical exfoliation method as a highly effective adsorbent for removing dyes from water. According to the Raman, X‐ray photoelectron spectroscopy, Fourier transform infrared (FTIR), and selected area electron diffraction analysis, functional groups (hdroxyl groups, amide groups, amine groups and amino groups) are identified in the as‐prepared F‐MoO3 nanosheets. The attached functional groups not only facilitate the dispersal ability of F‐MoO3 nanosheets but also enhance the adsorption capacities. Thus, the performance (up to 556 mg g−1 when the initial concentration of Rhodamine B solution is 100 mg L−1) of as‐prepared F‐MoO3 nanosheets is almost two times higher than other reported MoO3 materials. Furthermore, the FTIR spectra, isotherm, and several factors (e.g., adsorbent dosage and adsorbate dosage) are also systematically investigated to explore the adsorption mechanism. Therefore, this work demonstrates that the F‐MoO3 nanosheets are a promising candidate for wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Functionalized MoO₃ Nanosheets for High‐Efficiency RhB Removal

Wang

Liú

et al. 2022

Global Challenges

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“…Consequently, MoO3 is the most studied, environment-friendly, low-cost electrode material in the energy storage field, what is due to its significant multiple oxidation states, which could promote redox reaction of electrode. Therefore, MoO3 is generally considered as an appreciable electro-active compound [22].…”

Section: A D V a N C E D O N L I N E A R T I C L Ementioning

confidence: 99%

Determination of 4-nitrophenol using MoO3 loaded glassy carbon electrode via electrochemical sensing approach

Kamble

Garadkar

Sharma

et al. 2021

J. Electrochem. Sci. Eng.

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In order to raise possible ways of MoO3 synthesis and improve its existing applications, MoO3 nanomaterial was successfully synthesized through the solvo-hydrothermal route by utilizing a mixture of ionic liquid (1-butyl-3-methylimidazolium bromide) as a solvent, and water as co-solvent in 1:1 ratio. The morphology and structural parameters of IL-assisted MoO3 product were examined by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). Additionally, the surface wettability and particle size distribution were inspected using the contact angle and dynamic light scattering (DLS) analysis. Glassy carbon electrode (GCE) surface was then modified by IL-assisted MoO3. The formed IL-MoO3/GCE was employed as an electrochemical sensor for determination of 4-nitrophenol (4-NP), which is very toxic and important pollutant. The redox behavior of 4-NP at the surface of IL-MoO3/GCE was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Limits of detection (LOD) and limits of quantification (LOQ) determined from CV were found to be 6.76 and 22.5 mM, while from DPV recordings, 5.41 and 18.0 mM are found. The obtained results clearly reveal possible application of MoO3 for selective and sensitive sensing of 4-NP. The decorated electrode was successfully employed for determination of 4-NP in the river water real samples.

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