Xiaotong Jin, Kangkang Yuan, Xingxiang Ji, Chengshun Li
{"title":"用 B2O3 修饰的电纺 ZrO2 基催化纳米纤维的结构特征及其在酚红溴化反应中的性能","authors":"Xiaotong Jin, Kangkang Yuan, Xingxiang Ji, Chengshun Li","doi":"10.1007/s10971-024-06404-x","DOIUrl":null,"url":null,"abstract":"<p>Porosity and thermal stability are the main constraints that determine the performance of zirconia (ZrO<sub>2</sub>) for a wide range of applications, including adsorption, catalysis, filtration, etc. Here, we have proposed the rational design of electrospun ZrO<sub>2</sub> nanofibers (NFs) with high surface areas and good thermal stability. Water vapor pre-treatment was used to modify the surface structure of the NFs with the removal of soft templates at a lower temperature. In addition, amorphous B<sub>2</sub>O<sub>3</sub> was introduced into the ZrO<sub>2</sub> NFs to improve the thermal stability of the porous structure. The as-prepared NFs had high surface area of 380 m<sup>2</sup>/g and even 300 m<sup>2</sup>/g after heat treatment at 450 °C. The catalytic activity of modified ZrO<sub>2</sub> NFs as support materials in bromination reaction of phenol red was tested. And a high specific bromination activity of 3.02 mmol h<sup>−1</sup> g<sup>−1</sup> was obtained. This work could provide promising strategies for preparing electrospun porous oxide NFs with high surface area and good thermal stability in order to optimize performance.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural characterization of electrospun ZrO2-based catalytic nanofibers modified with B2O3 and their performance in bromination reaction of phenol red\",\"authors\":\"Xiaotong Jin, Kangkang Yuan, Xingxiang Ji, Chengshun Li\",\"doi\":\"10.1007/s10971-024-06404-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Porosity and thermal stability are the main constraints that determine the performance of zirconia (ZrO<sub>2</sub>) for a wide range of applications, including adsorption, catalysis, filtration, etc. Here, we have proposed the rational design of electrospun ZrO<sub>2</sub> nanofibers (NFs) with high surface areas and good thermal stability. Water vapor pre-treatment was used to modify the surface structure of the NFs with the removal of soft templates at a lower temperature. In addition, amorphous B<sub>2</sub>O<sub>3</sub> was introduced into the ZrO<sub>2</sub> NFs to improve the thermal stability of the porous structure. The as-prepared NFs had high surface area of 380 m<sup>2</sup>/g and even 300 m<sup>2</sup>/g after heat treatment at 450 °C. The catalytic activity of modified ZrO<sub>2</sub> NFs as support materials in bromination reaction of phenol red was tested. And a high specific bromination activity of 3.02 mmol h<sup>−1</sup> g<sup>−1</sup> was obtained. This work could provide promising strategies for preparing electrospun porous oxide NFs with high surface area and good thermal stability in order to optimize performance.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\",\"PeriodicalId\":664,\"journal\":{\"name\":\"Journal of Sol-Gel Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sol-Gel Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s10971-024-06404-x\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sol-Gel Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s10971-024-06404-x","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Structural characterization of electrospun ZrO2-based catalytic nanofibers modified with B2O3 and their performance in bromination reaction of phenol red
Porosity and thermal stability are the main constraints that determine the performance of zirconia (ZrO2) for a wide range of applications, including adsorption, catalysis, filtration, etc. Here, we have proposed the rational design of electrospun ZrO2 nanofibers (NFs) with high surface areas and good thermal stability. Water vapor pre-treatment was used to modify the surface structure of the NFs with the removal of soft templates at a lower temperature. In addition, amorphous B2O3 was introduced into the ZrO2 NFs to improve the thermal stability of the porous structure. The as-prepared NFs had high surface area of 380 m2/g and even 300 m2/g after heat treatment at 450 °C. The catalytic activity of modified ZrO2 NFs as support materials in bromination reaction of phenol red was tested. And a high specific bromination activity of 3.02 mmol h−1 g−1 was obtained. This work could provide promising strategies for preparing electrospun porous oxide NFs with high surface area and good thermal stability in order to optimize performance.
期刊介绍:
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.