{"title":"亚甲基蓝的合成、表征、电化学阻抗谱性能和光降解：溶胶-凝胶电纺丝法制备介孔 PEG/TiO2","authors":"Dieketseng Tsotetsi , Tumelo Seadira , Pontsho Mbule , Mokhotjwa Dhlamini","doi":"10.1016/j.physb.2024.416627","DOIUrl":null,"url":null,"abstract":"<div><div>Sol-gel and electrospinning methods successfully prepared porous TiO<sub>2</sub> fibers. The samples were calcined at temperatures of 450 °C and 550 °C and characterized using different techniques. XRD analysis also revealed crystalline anatase and rutile phases of mp-TiO<sub>2</sub> observed at calcining temperatures of 450 °C and 550 °C, whereas as-prepared showed an amorphous-like structure. Relatively higher surface area and photocatalytic efficiency were increased with a decrease in crystallite size. All samples absorb UV region. The Rs value of TiO<sub>2</sub> calcined at 550 °C was 16.6 Ω, which is much lower than those of the 450 °C calcined TiO<sub>2</sub> powder electrode (52.7 Ω) and as-prepared TiO<sub>2</sub> electrode (95.3 Ω). In addition, the Rp resistance of TiO<sub>2</sub> calcined at 550 °C electrode (5.85 kΩ) was also lower than those of 450 °C calcined TiO<sub>2</sub> powder (39.0 kΩ) and as-prepared TiO<sub>2</sub> electrode (68.9 kΩ), revealing better electronic and ionic conduction of TiO<sub>2</sub> calcined at 550 °C electrode.</div></div>","PeriodicalId":20116,"journal":{"name":"Physica B-condensed Matter","volume":"696 ","pages":"Article 416627"},"PeriodicalIF":2.8000,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, characterization, electrochemical impedance spectroscopy performance and photodegradation of methylene blue: Mesoporous PEG/TiO2 by sol-gel electrospinning\",\"authors\":\"Dieketseng Tsotetsi , Tumelo Seadira , Pontsho Mbule , Mokhotjwa Dhlamini\",\"doi\":\"10.1016/j.physb.2024.416627\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Sol-gel and electrospinning methods successfully prepared porous TiO<sub>2</sub> fibers. The samples were calcined at temperatures of 450 °C and 550 °C and characterized using different techniques. XRD analysis also revealed crystalline anatase and rutile phases of mp-TiO<sub>2</sub> observed at calcining temperatures of 450 °C and 550 °C, whereas as-prepared showed an amorphous-like structure. Relatively higher surface area and photocatalytic efficiency were increased with a decrease in crystallite size. All samples absorb UV region. The Rs value of TiO<sub>2</sub> calcined at 550 °C was 16.6 Ω, which is much lower than those of the 450 °C calcined TiO<sub>2</sub> powder electrode (52.7 Ω) and as-prepared TiO<sub>2</sub> electrode (95.3 Ω). In addition, the Rp resistance of TiO<sub>2</sub> calcined at 550 °C electrode (5.85 kΩ) was also lower than those of 450 °C calcined TiO<sub>2</sub> powder (39.0 kΩ) and as-prepared TiO<sub>2</sub> electrode (68.9 kΩ), revealing better electronic and ionic conduction of TiO<sub>2</sub> calcined at 550 °C electrode.</div></div>\",\"PeriodicalId\":20116,\"journal\":{\"name\":\"Physica B-condensed Matter\",\"volume\":\"696 \",\"pages\":\"Article 416627\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physica B-condensed Matter\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0921452624009682\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, CONDENSED MATTER\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica B-condensed Matter","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921452624009682","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
Synthesis, characterization, electrochemical impedance spectroscopy performance and photodegradation of methylene blue: Mesoporous PEG/TiO2 by sol-gel electrospinning
Sol-gel and electrospinning methods successfully prepared porous TiO2 fibers. The samples were calcined at temperatures of 450 °C and 550 °C and characterized using different techniques. XRD analysis also revealed crystalline anatase and rutile phases of mp-TiO2 observed at calcining temperatures of 450 °C and 550 °C, whereas as-prepared showed an amorphous-like structure. Relatively higher surface area and photocatalytic efficiency were increased with a decrease in crystallite size. All samples absorb UV region. The Rs value of TiO2 calcined at 550 °C was 16.6 Ω, which is much lower than those of the 450 °C calcined TiO2 powder electrode (52.7 Ω) and as-prepared TiO2 electrode (95.3 Ω). In addition, the Rp resistance of TiO2 calcined at 550 °C electrode (5.85 kΩ) was also lower than those of 450 °C calcined TiO2 powder (39.0 kΩ) and as-prepared TiO2 electrode (68.9 kΩ), revealing better electronic and ionic conduction of TiO2 calcined at 550 °C electrode.
期刊介绍：
Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work.
Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas:
-Magnetism
-Materials physics
-Nanostructures and nanomaterials
-Optics and optical materials
-Quantum materials
-Semiconductors
-Strongly correlated systems
-Superconductivity
-Surfaces and interfaces
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