An organic–inorganic hybrid based on an Anderson-type polyoxometalate immobilized on PVA as a reusable and efficient nanocatalyst for oxidative desulphurization of gasoline

Rezvani, Mohammad Ali; Asli, M. Ali Nia; Oveisi, Mina; Babaei, Robab; Qasemi, Kolsum; Khandan, Sahar

doi:10.1039/c6ra08033b

Cited by 69 publications

(29 citation statements)

References 34 publications

(61 reference statements)

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“…In this equation, D is the average particle size (nm), K is equal to 0.89, λ is the wavelength of the applied radiation (1.5406°A), β is the full‐width at half‐maximum (FWHM), and θ is angular half‐width of the central maximum …”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

et al. 2019

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In this work, a new nanocomposite (PMo11Cu@MgCu2O4@CS) was synthesized by reaction of copperII‐monosubstituted phosphomolybdate (PMo11Cu), magnesiocopperite (MgCu2O4) and Chitosan (CS) via the sol‐gel method. The assembled nanocomposite was characterized by FTIR, XRD, SEM. The catalytic activity of the nanocomposite was tested on oxidative desulfurization (ODS) of real gasoline in the presence of CH3COOH/H2O2 in the volume ratio of 1/2 as an oxidant. Additionally, the results were compared with the oxidation reaction of prepared model sulfur compounds at the same conditions. The ODS results showed that immobilized of PMo11Cu on the CS and MgCu2O4 nanoceramic increased the efficiency and activity of the PMo11Cu in the removal of organic sulfur compounds (OSCs). The PMo11Cu@CS @MgCu2O4 could be reused for at least five times without notable reduction in efficiency of ODS system. This investigation presents a promising approach to the efficient removal of OSCs from gasoline using PMo11Cu@MgCu2O4@CS catalyst under mild reaction conditions.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

et al. 2019

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“…Oxygen atoms are usually present as bridging and terminal oxo ligands . The POMs have attracted the considerable attention of researchers in catalysis due to their fascinating structures and excellent physic‐chemical characteristics Among their various structures, sandwich‐type transition metal POMs have been developed as catalysts for the oxidation of alcohols, sulfides, and for the epoxidation of hydrocarbons . The clusters of POMs are soluble in most of the polar solvents, causing difficulties in the separation and recovery, which is an important restriction for catalytic systems .…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Rezvani

Maleki

2019

Applied Organom Chemis

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In this work, a new nanocatalyst, Fe2W18Fe4@NiO@CTS, was synthesized by the reaction of sandwich‐type polyoxometalate (Fe2W18Fe4), nickel oxide (NiO), and chitosan (CTS) via sol–gel method. The assembled nanocatalyst was systematically characterized by FT‐IR, UV–vis, XRD, SEM, and EDX analysis. The catalytic activity of Fe2W18Fe4@NiO@CTS was tested on oxidative desulfurization (ODS) of real gasoline and model fuels. The experimental results revealed that the levels of sulfur content and mercaptan compounds of gasoline were lowered with 97% efficiency. Also, the Fe2W18Fe4@NiO@CTS nanocatalyst demonstrated an outstanding catalytic performance for the oxidation of dibenzothiophene (DBT) in the model fuel. The major factors that influence the desulfurization efficiency and the kinetic study of the ODS reactions were fully detailed and discussed. The probable ODS pathway was proposed via the electrophilic mechanism on the basis of the electrophilic characteristic of the metal‐oxo‐peroxo intermediates. The prepared nanocatalyst could be reused for 5 successive runs without any appreciable loss in its catalytic activity. As a result, the current study suggested the potential application of the Fe2W18Fe4@NiO@CTS hybrid nanocatalyst as an ideal candidate for removal of sulfur compounds from fuel.

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“…The removal of sulfur attached to the heterocyclic or aliphatic hydrocarbons of liquid fuels is the most pressing recent issue of the petroleum industry. The high toxicity and corrosive nature of sulfur‐containing compounds pose serious environmental problems during the combustion of transportation fuel . In view of the strict legislation about fuel quality in many countries, substantial research efforts have been focused on reducing the sulfur concentration of refined petroleum products.…”

Section: Introductionmentioning

confidence: 99%

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

Rezvani

Aghbolagh

Hosseini‐Monfared

2018

Applied Organom Chemis

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A new organic-inorganic hybrid nanocomposite (TBA-Si 2 W 18 Mn 4 @SAB) was synthesized by supporting quaternary ammonium salt of sandwich-type polyoxometalate (TBA-Si 2 W 18 Mn 4 ) on sodium-activated bentonite (SAB) for catalysing an oxidative desulfurization (ODS) process. The synthesized materials were characterized by means of elemental analysis, 29 Si NMR, Fourier transform infrared and UV-visible spectroscopies, X-ray diffraction and scanning electron microscopy. The proposed ODS process was successfully developed on the basis of the catalytic oxidation of organosulfur compounds using TBA-Si 2 W 18 Mn 4 @SAB as catalyst and CH 3 COOH/H 2 O 2 as oxidizing agent.The removal of the sulfur content of gasoline reached 97% at a temperature of 35°C after 1 h using 0.10 g of the prepared catalyst. Various experiments were conducted to investigate the effects of reaction time, catalyst amount, reaction temperature and catalyst type on sulfur removal efficiency. The heterogeneous TBA-Si 2 W 18 Mn 4 @SAB catalyst was found to be reusable for five times. The obtained data illustrated that the use of the TBA-Si 2 W 18 Mn 4 @SAB/ CH 3 COOH/H 2 O 2 oxidation system could be a convenient strategy for reducing the sulfur content of gasoline fuel under moderate reaction conditions.

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An organic–inorganic hybrid based on an Anderson-type polyoxometalate immobilized on PVA as a reusable and efficient nanocatalyst for oxidative desulphurization of gasoline

Abstract: An organic–inorganic hybrid based on Anderson-type polyoxometalate was synthesized and immobilized on PVA via sol–gel method and characterized by FT-IR, XRD, SEM and UV-vis spectroscopy. Its catalytic activity was tested on ODS of gasoline.

Cited by 69 publications

References 34 publications

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

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An organic–inorganic hybrid based on an Anderson-type polyoxometalate immobilized on PVA as a reusable and efficient nanocatalyst for oxidative desulphurization of gasoline

Abstract: An organic–inorganic hybrid based on Anderson-type polyoxometalate was synthesized and immobilized on PVA via sol–gel method and characterized by FT-IR, XRD, SEM and UV-vis spectroscopy. Its catalytic activity was tested on ODS of gasoline.

Cited by 69 publications

References 34 publications

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo11Cu@MgCu2O4@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo11Cu@MgCu2O4@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Facile synthesis of inorganic–organic Fe2W18Fe4@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

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Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel