Insight into Oxidative Desulfurization Mechanism from the Interaction between Different Facets of TiO2 and V Single Atom or V2O5 Cluster DOI
Peng Zheng,

Zitao Zhu,

Chengkun Xiao

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

This research was devoted to investigating the oxidative desulfurization (ODS) reaction of thiophene over V1-TiO2 and V2O5-TiO2 surfaces through density functional theory calculations. The calculation results showed that V single atoms V2O5 clusters exhibited significantly different binding energies charge transfer characteristics TiO2 facets. states orbital interaction analyses further revealed a more pronounced advantage in adsorbing activating O2 molecules compared clusters, which primarily attributed their unique electronic structure coordination environment. Based on results, highest catalytic activity formation sulfoxide (101) facet. Additionally, this work found extra oxygen (Oext) species also played key role reducing barriers promoting sulfoxides, with Oext directly contributing V2O5-catalyzed ODS reaction. promoted continuous conversion sulfoxides sulfones. Comprehensive analysis indicated there significant synergistic effect between collectively effective process thiophene.

Language: Английский

In Situ Formation of WC/W2C Heterostructures on N-Doped Carbon for Deep Oxidative Desulfurization of Fuel Oil DOI Creative Commons
Peng Zuo, Fuyan Zhao,

Fanfan Liu

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 617 - 617

Published: Jan. 31, 2025

A novel tungsten-based heterojunction nanocomposite material was developed for the efficient oxidative desulfurization (ODS) of fuel oil, enabling production low-sulfur and a reduction in harmful SOx emissions. In this material, WC/W2C uniformly immobilized on porous nitrogen-doped carbon (NC) matrix structure through facile situ pyrolysis polyaniline-phosphotungstic acid (PANI/PTA) precursors. The resultant WC/W2C@NC catalyst demonstrated remarkable performance, achieving 100% removal 4000 ppm dibenzothiophene (DBT) just 15 min at 60 °C presence 0.03 g H2O2/S molar ratio 2. This exceptional activity is attributed to synergistic effects stemming from accelerated electron transfer by NC matrix, intricate network, abundant active sites. Moreover, formation around mitigated site leaching, ensuring stability, with DBT rate 97.2% maintained even after eight recycling cycles. work provides versatile scalable approach fabricating catalysts highlights potential as high-performance, durable ODS catalyst, paving way further advancements sustainable technologies.

Language: Английский

Citations

0
Synthesis of α-terpinyl methyl ether by catalytic alkoxylation of tire pyrolysis oil over heteropolyacid modified Hβ zeolite DOI
Yilong Xu,

Shihao Fu,

Yuxin Wen

et al.

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121572 - 121572

Published: March 1, 2025

Language: Английский

Citations

0
In-situ facile fabrication of MoO3-supported on bicomponent carbons for fast oxidative desulfurization of high sulfur liquid fuels DOI
Yefeng Liu, Fuyan Zhao, Chuan Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116279 - 116279

Published: March 1, 2025

Language: Английский

Citations

0
Zinc Tungstate Supported on Graphitic Carbon Nitride for Efficient Oxidative Desulfurization of Oil DOI

Ran Wu,

Chunfeng Mao, Yifei Zhou

et al.

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(5)

Published: April 10, 2025

ABSTRACT Binary metal oxides hold immense potential in catalysis; however, their efficient utilization remains a significant challenge. Zinc tungstate (ZnWO 4 ) was loaded onto graphitic carbon nitride (g‐C 3 N via highly and energy‐saving room‐temperature stirring method to prepare ZnWO /g‐C (ZnWO/CN) composite with sandwich structure for oxidative desulfurization. The appearance, structure, stability of ZnWO/CN were characterized by X‐ray diffraction (XRD), Fourier transform infrared (FT‐IR) spectroscopy, photoelectron spectroscopy (XPS), some other characterization tests. Results demonstrate the successful incorporation nanoparticles within layered porous g‐C , achieving dispersed state. In addition, exhibits significantly higher specific surface area enhanced compared pure effectively mitigates propensity towards agglomeration. catalytic performance evaluation indicates that (30 wt%) achieves exceptional desulfurization efficiency at lower preparation cost. A near‐complete sulfur removal rate 99.89% achieved 180 min under optimized conditions ( m (catalyst) 20.00 mg, V (ILs)/ (Oil) 1/20, (H 2 O 0.2 mL, 80°C). Furthermore, catalyst retained high even after eight consecutive cycles. Notably, adsorption affinity reactants enabled reduction ionic liquid dosages. By combining testing, quenching experiment, EPR test, reaction mechanism oxidation ultimately obtained. this provides research ideas new supported catalysts.

Language: Английский

Citations

0
Mechanisms, challenges, and future perspectives of adsorptive desulfurization using zeolite-based adsorbents: a review DOI

Hanieh Jafarabadi,

Mohsen Mansouri,

Mohsen Shayanmehr

et al.

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Language: Английский

Citations

0
Insight into Oxidative Desulfurization Mechanism from the Interaction between Different Facets of TiO2 and V Single Atom or V2O5 Cluster DOI
Peng Zheng,

Zitao Zhu,

Chengkun Xiao

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

This research was devoted to investigating the oxidative desulfurization (ODS) reaction of thiophene over V1-TiO2 and V2O5-TiO2 surfaces through density functional theory calculations. The calculation results showed that V single atoms V2O5 clusters exhibited significantly different binding energies charge transfer characteristics TiO2 facets. states orbital interaction analyses further revealed a more pronounced advantage in adsorbing activating O2 molecules compared clusters, which primarily attributed their unique electronic structure coordination environment. Based on results, highest catalytic activity formation sulfoxide (101) facet. Additionally, this work found extra oxygen (Oext) species also played key role reducing barriers promoting sulfoxides, with Oext directly contributing V2O5-catalyzed ODS reaction. promoted continuous conversion sulfoxides sulfones. Comprehensive analysis indicated there significant synergistic effect between collectively effective process thiophene.

Language: Английский

Citations

0