Zhiguo Sun, Menglu Wang, Jiaming Fan, Run Feng, Yue Zhou, Li Zhang
{"title":"TiO2@MIL-101（Cr）纳米复合材料作为降解甲苯的高效光催化剂","authors":"Zhiguo Sun, Menglu Wang, Jiaming Fan, Run Feng, Yue Zhou, Li Zhang","doi":"10.1007/s42114-021-00337-7","DOIUrl":null,"url":null,"abstract":"<div><p>Volatile organic compounds including toluene have high carcinogenicity and are very harmful to human health. In this work, an efficient nanocomposite photocatalyst of TiO<sub>2</sub>@MIL-101(Cr) were synthesized by hydrothermal method. The photocatalytic performances of catalysts were analyzed by the degradation of toluene. The toluene removal efficiency of TiO<sub>2</sub>@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO<sub>2</sub>. X-ray diffraction and scanning electron microscope results confirmed the successful synthesis of nanocomposite photocatalyst constructed of TiO<sub>2</sub> nanoparticles and regular octahedral MIL-101(Cr). Compared with bare TiO<sub>2</sub> nanoparticles, the specific surface area of TiO<sub>2</sub>@MIL-101(Cr) was improved from 49.4 to 136.08 m<sup>2</sup> g<sup>−1</sup>. The reduced photoluminescence intensity of nanocomposite indicates the effective charge separation, which can increase the lifetime of charge carriers and improve the efficiency of interfacial charge transfer to the surface. The enhanced removal efficiency of the composites are mainly owing to the expansion of light response range, the suppress of electron (e<sup>−</sup>) and holes (h<sup>+</sup>) recombination, the promotion of the electron transfer and the improved toluene adsorption ability of TiO<sub>2</sub>@MIL-101(Cr).</p><h3>Graphical abstract</h3><p>In this work, an efficient nanocomposite photocatalyst of TiO<sub>2</sub>@MIL-101(Cr) were synthesized by hydrothermal method. The toluene removal efficiency of TiO<sub>2</sub>@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO<sub>2</sub>.</p>\n <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\n </div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"4 4","pages":"1322 - 1329"},"PeriodicalIF":21.8000,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-021-00337-7.pdf","citationCount":"21","resultStr":"{\"title\":\"TiO2@MIL-101(Cr) nanocomposites as an efficient photocatalyst for degradation of toluene\",\"authors\":\"Zhiguo Sun, Menglu Wang, Jiaming Fan, Run Feng, Yue Zhou, Li Zhang\",\"doi\":\"10.1007/s42114-021-00337-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Volatile organic compounds including toluene have high carcinogenicity and are very harmful to human health. In this work, an efficient nanocomposite photocatalyst of TiO<sub>2</sub>@MIL-101(Cr) were synthesized by hydrothermal method. The photocatalytic performances of catalysts were analyzed by the degradation of toluene. The toluene removal efficiency of TiO<sub>2</sub>@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO<sub>2</sub>. X-ray diffraction and scanning electron microscope results confirmed the successful synthesis of nanocomposite photocatalyst constructed of TiO<sub>2</sub> nanoparticles and regular octahedral MIL-101(Cr). Compared with bare TiO<sub>2</sub> nanoparticles, the specific surface area of TiO<sub>2</sub>@MIL-101(Cr) was improved from 49.4 to 136.08 m<sup>2</sup> g<sup>−1</sup>. The reduced photoluminescence intensity of nanocomposite indicates the effective charge separation, which can increase the lifetime of charge carriers and improve the efficiency of interfacial charge transfer to the surface. The enhanced removal efficiency of the composites are mainly owing to the expansion of light response range, the suppress of electron (e<sup>−</sup>) and holes (h<sup>+</sup>) recombination, the promotion of the electron transfer and the improved toluene adsorption ability of TiO<sub>2</sub>@MIL-101(Cr).</p><h3>Graphical abstract</h3><p>In this work, an efficient nanocomposite photocatalyst of TiO<sub>2</sub>@MIL-101(Cr) were synthesized by hydrothermal method. The toluene removal efficiency of TiO<sub>2</sub>@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO<sub>2</sub>.</p>\\n <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\\n </div>\",\"PeriodicalId\":7220,\"journal\":{\"name\":\"Advanced Composites and Hybrid Materials\",\"volume\":\"4 4\",\"pages\":\"1322 - 1329\"},\"PeriodicalIF\":21.8000,\"publicationDate\":\"2021-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s42114-021-00337-7.pdf\",\"citationCount\":\"21\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Composites and Hybrid Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42114-021-00337-7\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-021-00337-7","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
TiO2@MIL-101(Cr) nanocomposites as an efficient photocatalyst for degradation of toluene
Volatile organic compounds including toluene have high carcinogenicity and are very harmful to human health. In this work, an efficient nanocomposite photocatalyst of TiO2@MIL-101(Cr) were synthesized by hydrothermal method. The photocatalytic performances of catalysts were analyzed by the degradation of toluene. The toluene removal efficiency of TiO2@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO2. X-ray diffraction and scanning electron microscope results confirmed the successful synthesis of nanocomposite photocatalyst constructed of TiO2 nanoparticles and regular octahedral MIL-101(Cr). Compared with bare TiO2 nanoparticles, the specific surface area of TiO2@MIL-101(Cr) was improved from 49.4 to 136.08 m2 g−1. The reduced photoluminescence intensity of nanocomposite indicates the effective charge separation, which can increase the lifetime of charge carriers and improve the efficiency of interfacial charge transfer to the surface. The enhanced removal efficiency of the composites are mainly owing to the expansion of light response range, the suppress of electron (e−) and holes (h+) recombination, the promotion of the electron transfer and the improved toluene adsorption ability of TiO2@MIL-101(Cr).
Graphical abstract
In this work, an efficient nanocomposite photocatalyst of TiO2@MIL-101(Cr) were synthesized by hydrothermal method. The toluene removal efficiency of TiO2@MIL-101(Cr) was 23.28% higher than that of MIL-101(Cr), and 26.88% higher than that of bare TiO2.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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