新型纳米复合材料P2W18Co4@ZnFe2O4@PVA的合成与表征——一种高效、优异的磁可回收燃料脱硫纳米催化剂

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-06-13 DOI:10.1016/j.mseb.2025.118512

Parisa Afshari , Roushan Khoshnavazi , Mohammad Ali Rezvani

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引用次数: 0

摘要

在这项研究中，成功合成了一种新的纳米复合材料P2W18Co4@ZnFe2O4@PVA，并将其作为燃料氧化脱硫（PODS）的光催化剂。P2W18Co4@ZnFe2O4@PVA结合了P2W18Co4的高氧化还原电位、ZnFe2O4的紫外-可见光响应性能以及聚乙烯醇（PVA）的稳定和分散能力。利用FT-IR、UV-vis、XRD、SEM、EDX和图谱等对P2W18Co4@ZnFe2O4@PVA进行了结构和形态表征，证实了纳米复合材料的成功构建。P2W18Co4@ZnFe2O4@PVA在温和条件下（室温、空气气氛、紫外-可见光）从模型燃料中去除苯并噻吩（约97%）和二苯并噻吩（约94%）表现优异。机理研究表明P2W18Co4和ZnFe2O4之间存在协同作用，导致有效的电荷分离和活性氧的生成。P2W18Co4@ZnFe2O4@PVA在连续五个循环中表现出高稳定性和可重用性，而活性没有明显损失。该研究为燃料深度脱硫提供了一条绿色、高效、可回收的途径，突出了pom基纳米复合材料在可持续能源应用中的潜力。

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Synthesis and characterization of new nanocomposite P2W18Co4@ZnFe2O4@PVA as an efficient and excellent magnetically recoverable nanocatalyst for desulfurization of fuels

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Synthesis and characterization of new nanocomposite P2W18Co4@ZnFe2O4@PVA as an efficient and excellent magnetically recoverable nanocatalyst for desulfurization of fuels

In this study, a new nanocomposite, P₂W₁₈Co₄@ZnFe₂O₄@PVA, was successfully synthesized and applied as a photocatalyst for oxidative desulfurization (PODS) of fuels. P₂W₁₈Co₄@ZnFe₂O₄@PVA integrates the high redox potential of P₂W₁₈Co₄, the UV–visible-light-responsive properties of ZnFe₂O₄, and the stabilizing and dispersing abilities of polyvinyl alcohol (PVA). Structural and morphological characterizations of P₂W₁₈Co₄@ZnFe₂O₄@PVA using FT-IR, UV–vis, XRD, SEM, EDX, and mapping confirmed the successful construction of the nanocomposite. P₂W₁₈Co₄@ZnFe₂O₄@PVA exhibited excellent performance in removing benzothiophene (approximately 97 %) and dibenzothiophene (approximately 94 %) from model fuel under mild conditions (room temperature, air atmosphere, UV–visible light). Mechanistic investigations revealed the synergistic effect between P₂W₁₈Co₄ and ZnFe₂O₄, leading to effective charge separation and reactive oxygen species generation. P₂W₁₈Co₄@ZnFe₂O₄@PVA demonstrated high stability and reusability over five consecutive cycles without a significant loss in activity. This study offers a green, efficient, and recyclable route for deep desulfurization of fuel, highlighting the potential of POM-based nanocomposites in sustainable energy applications.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.