{"title":"粘土矿物纳米纤维乙烯基刷的制备作为催化还原金纳米颗粒的活性载体","authors":"Talha Baig, Shaista Taimur, Afza Shahid","doi":"10.1007/s13404-023-00328-0","DOIUrl":null,"url":null,"abstract":"<div><p>This study encompasses the synthesis of gold nanoparticles (GNPs) captured on nanofibrous vinyl brushes (NVBs) using sepiolite nanoclay as a matrix. The diameter of GNPs was found to be 2–8 nm investigated by a particle-size analyzer. Due to the high surface reactivity, GNPs are more susceptible to agglomeration which reduces their efficacy as catalyst. A suitable support could be employed to arrest the discrete gold particles on its surface. The distinct textural morphology of sepiolite allows it to be a promising choice as support. Silanol groups on the surface of sepiolite nanofibers were consumed to graft vinyl brushes using hydrolyzed vinyl triethoxy silane. This grafting was characterized by FT-IR spectroscopy. Morphological studies of developed nanocomposites (AuNVBs) were conducted by TEM and FESEM revealing evidently the incorporation of well-distributed GNPs. XRD diffractograms have validated the connectivity of GNPs on NVBs surface. GNPs immobilized on the surface of NVBs are commendable candidates as catalyst to enhance the reaction rate for the conversion of 4- nitrophenol to 4- aminophenol.</p><h3>Graphical abstract</h3>\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\n </div>","PeriodicalId":581,"journal":{"name":"Gold Bulletin","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fabrication of nanofibrous vinyl brushes of clay minerals as an active support for gold nanoparticles for catalytic reduction\",\"authors\":\"Talha Baig, Shaista Taimur, Afza Shahid\",\"doi\":\"10.1007/s13404-023-00328-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study encompasses the synthesis of gold nanoparticles (GNPs) captured on nanofibrous vinyl brushes (NVBs) using sepiolite nanoclay as a matrix. The diameter of GNPs was found to be 2–8 nm investigated by a particle-size analyzer. Due to the high surface reactivity, GNPs are more susceptible to agglomeration which reduces their efficacy as catalyst. A suitable support could be employed to arrest the discrete gold particles on its surface. The distinct textural morphology of sepiolite allows it to be a promising choice as support. Silanol groups on the surface of sepiolite nanofibers were consumed to graft vinyl brushes using hydrolyzed vinyl triethoxy silane. This grafting was characterized by FT-IR spectroscopy. Morphological studies of developed nanocomposites (AuNVBs) were conducted by TEM and FESEM revealing evidently the incorporation of well-distributed GNPs. XRD diffractograms have validated the connectivity of GNPs on NVBs surface. GNPs immobilized on the surface of NVBs are commendable candidates as catalyst to enhance the reaction rate for the conversion of 4- nitrophenol to 4- aminophenol.</p><h3>Graphical abstract</h3>\\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\\n </div>\",\"PeriodicalId\":581,\"journal\":{\"name\":\"Gold Bulletin\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2023-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Gold Bulletin\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13404-023-00328-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gold Bulletin","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13404-023-00328-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Fabrication of nanofibrous vinyl brushes of clay minerals as an active support for gold nanoparticles for catalytic reduction
This study encompasses the synthesis of gold nanoparticles (GNPs) captured on nanofibrous vinyl brushes (NVBs) using sepiolite nanoclay as a matrix. The diameter of GNPs was found to be 2–8 nm investigated by a particle-size analyzer. Due to the high surface reactivity, GNPs are more susceptible to agglomeration which reduces their efficacy as catalyst. A suitable support could be employed to arrest the discrete gold particles on its surface. The distinct textural morphology of sepiolite allows it to be a promising choice as support. Silanol groups on the surface of sepiolite nanofibers were consumed to graft vinyl brushes using hydrolyzed vinyl triethoxy silane. This grafting was characterized by FT-IR spectroscopy. Morphological studies of developed nanocomposites (AuNVBs) were conducted by TEM and FESEM revealing evidently the incorporation of well-distributed GNPs. XRD diffractograms have validated the connectivity of GNPs on NVBs surface. GNPs immobilized on the surface of NVBs are commendable candidates as catalyst to enhance the reaction rate for the conversion of 4- nitrophenol to 4- aminophenol.
期刊介绍：
Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.
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