Sn， fe掺杂ZnO复合材料的结构设计以增强其光催化活性

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

Materials Science and Engineering: B Pub Date : 2025-06-21 DOI:10.1016/j.mseb.2025.118528

L.L. Khomutinnikova , M.A. Gavrilova , S.K. Evstropiev , N.K. Kuzmenko

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引用次数: 0

摘要

研究了Sn、fe掺杂ZnO复合材料的设计，以提高其光催化活性。所得材料采用高分子溶胶-凝胶法合成，具有不同的化学成分和形态。比较了两种不同形貌：1)均匀掺杂材料和2)核壳型ZnO/SnO2-Fe2O3颗粒复合材料的结构和性能。采用XRD和SEM分析、光致发光和拉曼光谱、有机染料芝加哥天蓝的吸附及其在复合材料存在下的光催化分解研究对材料进行表征。ZnO中Sn、fe的掺杂刺激了晶体结构中不同结构缺陷的形成。观察到不同结构的复合材料缺陷形成的差异。结果表明，不同Sn、Fe/ zno基复合材料对染料的吸附与光催化活性之间没有明显的关系。核/壳复合材料对染料的吸附率高于均匀掺杂的类似物，但对染料的光催化分解率较低。介绍了染料在复合材料表面吸附及其光催化分解的各种动力学模型的充分性评价结果。

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Structure design of Sn,Fe-doped ZnO composites for the enhancement of their photocatalytic activity

The design of Sn,Fe-doped ZnO composites for the enhancement of their photocatalytic activity was studied. Obtained materials were synthesized by polymeric sol–gel method and have different chemical compositions and morphology. The structure and properties of composites having two different morphologies: 1) uniform doped materials, and 2) core–shell ZnO/SnO₂-Fe₂O₃ particles were compared. XRD and SEM analysis, photoluminescence and Raman spectroscopy, the study of organic dye Chicago Sky Blue adsorption and its photocatalytic decomposition at the presence of prepared composites were applied for the materials characterization. The Sn,Fe-doping of ZnO stimulates the formation of different structural defects in the crystals structure. The difference in the formation of defects in composites having the different structures was observed. It was found that there is no the strong relationship between the dye adsorption onto different Sn,Fe/ZnO-based composites and their photocatalytic activity. The core/shell composites demonstrate the higher dye adsorption rate than uniform doped analogues but the lower rate of dye photocatalytic decomposition. The results of assessing the adequacy of using various kinetic models of dye adsorption on the surface of composites and its photocatalytic decomposition are presented.

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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.