Photocatalytic Properties of Zinc Oxide Prepared by Combustion of Jellied Precursor

IF 0.7 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Theoretical and Experimental Chemistry Pub Date : 2023-05-20 DOI:10.1007/s11237-023-09761-w
V. O. Zazhigalov, D. V. Brazhnyk, O. V. Sachuk, O. V. Kiziun, I. V. Bacherikova, I. Alessandri, L. E. Depero
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Abstract

It is shown that zinc oxide synthesized by combustion of jellied precursor forms well-crystallized micro-sized particles when treated at 600 °C. It is shown that these particles reveal high photocatalytic activity in rhodamine B dye and metronidazole degradation processes in an aqueous medium, exceeding the activity of commercial nano-sized samples of ZnO. The activity increase of the synthesized sample is connected with the presence of oxygen vacancies, which provides to formation of the charged oxygen species and OH groups on the oxide surface. The formation of zinc oxide microcrystals contributes to the separation of photogenerated charges and reduces the probability of their recombination.

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凝胶前驱体燃烧制备氧化锌的光催化性能
结果表明,在600℃的高温下,由胶状前驱体燃烧合成的氧化锌形成了结晶良好的微细颗粒。结果表明,这些颗粒在水介质中对罗丹明B染料和甲硝唑的降解过程中表现出较高的光催化活性,超过了工业纳米ZnO样品的活性。合成样品的活性增加与氧空位的存在有关,这为氧化物表面带电氧和OH基团的形成提供了条件。氧化锌微晶的形成有助于光生电荷的分离,并降低其重组的可能性。
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来源期刊
Theoretical and Experimental Chemistry
Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
10.00%
发文量
30
审稿时长
6-12 weeks
期刊介绍: Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
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