Microwave-assisted rapid synthesis of bismuth molybdate with enhanced oxidative desulfurization activity

Zhang, Zhanjun; Zeng, Xingye; Wen, Liyuan; Wu, Shao-Yi; Zhang, Ying; Zhou, Rujin; Shan, Shufeng

doi:10.1016/j.fuel.2022.125900

Cited by 10 publications

(6 citation statements)

References 65 publications

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“…S1†), the characteristic diffraction peaks of the sample are indexed in two different crystal phases, namely, orthorhombic Bi 2 MoO 6 and cubic Bi 3.2 Mo 0.8 O 7.5 (JCPDS no. 77-0301), 29 demonstrating that phase-mixed Bi 3.2 Mo 0.8 O 7.5 –Bi 2 MoO 6 nanocomposites are formed. According to Spurr–Myer's equation, the mass ratio of Bi 2 MoO 6 and Bi 3.2 Mo 0.8 O 7.5 in 2.7BMO is 3 : 2.…”

Section: Resultsmentioning

confidence: 97%

“…S6, † the binding energies at 158.5 and 163.8 eV are assigned to Bi 4f 7/2 and Bi 4f 5/2 of Bi 3+ , while the binding energies at 231.7 and 234.9 eV belong to Mo 3d 5/2 and Mo 3d 3/2 of Mo 6+ in 2.0BMO. 29,42 Compared with those in 2.0BMO, the binding energies of Bi 4f and Mo 3d in 4.0BMO are slightly shifted toward higher binding energies because of their different crystalline structures. Noticeably, the binding energies of Bi 4f and Mo 3d in 2.7BMO are shifted to higher binding energies, indicating the interaction between Bi 2 MoO 6 and Bi 3.2 Mo 0.8 O 7.5 in the heterojunction.…”

Section: Phase-mixed 27bmo Nanosheet Heterojunctionmentioning

confidence: 98%

“…Since Bi 3.2 Mo 0.8 O 7.5 contains a [MoO 4 ] tetrahedron, it is suggested that the CB potential matches with Bi 2 MoO 6 . 27,29 Based on the aforementioned analysis, the unique Bi 3.2 Mo 0.8 O 7.5 provides a possible opportunity to construct an S-scheme heterojunction with Bi 2 MoO 6 . To date, unfortunately, such a heterojunction construction has not been reported.…”

Section: Introductionmentioning

confidence: 99%

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Graphene oxide modulated dual S-scheme ultrathin heterojunctions with iron phthalocyanine and phase-mixed bismuth molybdate as wide visible-light catalysts

Song

Zada

et al. 2023

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 97%

Section: Phase-mixed 27bmo Nanosheet Heterojunctionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Graphene oxide modulated dual S-scheme ultrathin heterojunctions with iron phthalocyanine and phase-mixed bismuth molybdate as wide visible-light catalysts

Song

Zada

et al. 2023

Environ. Sci.: Nano

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“…Crystals can be obtained selectively. The sample prepared at pH 1 showed excellent activity for the oxidation of sulfur compounds in liquid fuel at 60 • C with a hydrogen peroxide to sulfur molar ratio of four, achieving the removal of dibenzothiophene, 4,6−dimethyldibenzothiophene, and benzothiophene with an efficiency reaching 99.71%, 99.68%, and 77.95%, respectively [35].…”

Section: Synthesis Of Catalysts Using Microwave Radiationmentioning

confidence: 99%

Recent Studies on the Application of Microwave-Assisted Method for the Preparation of Heterogeneous Catalysts and Catalytic Hydrogenation Processes

Strekalova

Shesterkina

Kustov

et al. 2023

IJMS

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Currently, microwave radiation is widely used in various chemical processes in order to intensify them and carry out processes within the framework of “green” chemistry approaches. In the last 10 years, there has been a significant increase in the number of scientific publications on the application of microwaves in catalytic reactions and synthesis of nanomaterials. It is known that heterogeneous catalysts obtained under microwave activation conditions have many advantages, such as improved catalytic characteristics and stability, and the synthesis of nanomaterials is accelerated several times compared to traditional methods used to produce catalysts. The present review article is to summarize the results of modern research on the use of microwave radiation for the synthesis of heterogeneous catalytic nanomaterials and discusses the prospects for research in the field of microwave-induced liquid-phase heterogeneous catalysis in hydrogenation.

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“…Zhang et al synthesized a nano-bismuth molybdate (γ-Bi2MoO6) catalyst by an fast microwave-assisted hydro-thermal method, the sample prepared at pH=1, BMO-1, exhibited excellent activity for oxidizing sulfur compounds in fuel oil at 60 ℃ with a molar hydrogen peroxide to sulfur ratio of four, achieving removal rates of dibenzothiophene, 4,6dimethyldibenzothiophene, and benzothiophene of 99.71%, 99.68%, and 77.95%, respectively [37]. A new bismuth molybdate, β (L)-Bi2Mo2O9, was synthesized by Le et al and applied to the catalytic oxidation of propylene to acrolein, this new phase appeared to be almost as active and more selective than α-Bi2Mo3O12 [38]. However, regardless of the active phase of this catalyst, it should have optimal oxygen mobility, Bi-Mo separation, and coordination of Bi and Mo on its surface [39].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Hydrothermal Synthesis, Characterization and Catalytic Performance of α-Bi2Mo3O12 in the Selective Oxidation of Propene

Zhang,

Xu,

Shan

et al. 2024

Korean J. Chem. Eng.

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Four different samples of pure scheelite α-Bi2Mo3O12 were synthesized by the fast microwaveassisted hydrothermal method. By adjusting the pH in the preparation process, the morphologies and structures of the synthesized catalysts were changed. TG, XRD, SEM, TEM, BET, and XPS analyses were used to investigate the characteristics of the catalyst. The sample of α-Bi2Mo3O12 was prepared at a calcination temperature of 500 °C and pH=1 had the highest specific surface area propylene selective oxidation properties. The conversion of propylene was 28.3% and the selectivity of acrolein was 86.4%.Compared with α-Bi2Mo3O12 prepared by coprecipitation and normal hydrothermal method, α-Bi2Mo3O12 prepared by microwave hydrothermal method has higher propylene oxidizing activity. The conversion of propylene is negatively correlated with the crystallinity of the catalyst. This is due to the fact that higher crystallinity inhibits the lattice oxygen flow between the lattices, thus inhibiting the selective oxidation and reducing the conversion of the reaction. The oxygen mobility of α-Bi2Mo3O12 samples was characterized by XPS. The results showed that the conversion of propylene of α-Bi2Mo3O12 were positively correlated with its oxygen mobility strength. A probable mechanism for the selective oxidation of propylene was proposed. This work not only offers a high-efficiency method for the rapid preparation of bismuth molybdate catalysts, but also extends the application of microwave-assisted hydrothermal synthesis in the field of selective 4894 words oxidation of propylene.

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Microwave-assisted rapid synthesis of bismuth molybdate with enhanced oxidative desulfurization activity

Cited by 10 publications

References 65 publications

Graphene oxide modulated dual S-scheme ultrathin heterojunctions with iron phthalocyanine and phase-mixed bismuth molybdate as wide visible-light catalysts

Graphene oxide modulated dual S-scheme ultrathin heterojunctions with iron phthalocyanine and phase-mixed bismuth molybdate as wide visible-light catalysts

Recent Studies on the Application of Microwave-Assisted Method for the Preparation of Heterogeneous Catalysts and Catalytic Hydrogenation Processes

Microwave-Assisted Hydrothermal Synthesis, Characterization and Catalytic Performance of α-Bi2Mo3O12 in the Selective Oxidation of Propene

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