{"title":"Preparation of SrTiO3/PANI Composites and Photocatalytic Degradation of RhB","authors":"Lili Li, Ke Jiang, Wen Xi, Jia Xin Li, Jing Shu","doi":"10.1134/S0036024424703692","DOIUrl":null,"url":null,"abstract":"<p>The synthesized SrTiO<sub>3</sub>/PANI composite materials through a simple in situ oxidation process. A series of analytical techniques, including XRD, FT-IR, SEM, TEM, XPS and so on, were employed to investigate the morphological and structural characteristics of the composite materials and their elemental composition. The results of the UV irradiation of RhB demonstrated that pure SrTiO<sub>3</sub> exhibited a degradation rate of 73.35% within 60 min. The SrTiO<sub>3</sub>/PANI (20%) composite exhibited a 98.18% degradation rate in 60 min, indicating the optimal conditions for photocatalytic degradation of RhB. The free radical scavenging experiment demonstrated that superoxide anion (<span>\\( \\cdot {\\kern 1pt} {\\text{O}}_{2}^{ - }\\)</span>) is the dominant active species, the photocatalytic mechanism of Type-Z heterojunction was described in detail according to the band gap and free radical capture experiments of SrTiO<sub>3</sub> and PANI.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 3","pages":"634 - 645"},"PeriodicalIF":0.7000,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry A","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0036024424703692","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The synthesized SrTiO3/PANI composite materials through a simple in situ oxidation process. A series of analytical techniques, including XRD, FT-IR, SEM, TEM, XPS and so on, were employed to investigate the morphological and structural characteristics of the composite materials and their elemental composition. The results of the UV irradiation of RhB demonstrated that pure SrTiO3 exhibited a degradation rate of 73.35% within 60 min. The SrTiO3/PANI (20%) composite exhibited a 98.18% degradation rate in 60 min, indicating the optimal conditions for photocatalytic degradation of RhB. The free radical scavenging experiment demonstrated that superoxide anion (\( \cdot {\kern 1pt} {\text{O}}_{2}^{ - }\)) is the dominant active species, the photocatalytic mechanism of Type-Z heterojunction was described in detail according to the band gap and free radical capture experiments of SrTiO3 and PANI.
采用简单的原位氧化工艺合成了SrTiO3/PANI复合材料。采用XRD、FT-IR、SEM、TEM、XPS等分析技术研究了复合材料的形态、结构特征及其元素组成。RhB的紫外照射结果表明，纯SrTiO3的降解率为73.35% within 60 min. The SrTiO3/PANI (20%) composite exhibited a 98.18% degradation rate in 60 min, indicating the optimal conditions for photocatalytic degradation of RhB. The free radical scavenging experiment demonstrated that superoxide anion (\( \cdot {\kern 1pt} {\text{O}}_{2}^{ - }\)) is the dominant active species, the photocatalytic mechanism of Type-Z heterojunction was described in detail according to the band gap and free radical capture experiments of SrTiO3 and PANI.
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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