Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH₄ and CO₂.

IF 4.2 2区化学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Molecules Pub Date : 2024-11-04 DOI:10.3390/molecules29215219

Luis A Montejo-Mesa, Alicia M Díaz-García, Celio L Cavalcante, Enrique Vilarrasa-García, Enrique Rodríguez-Castellón, Daniel Ballesteros-Plata, Giselle I Autié-Castro

{"title":"Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH4 and CO2.","authors":"Luis A Montejo-Mesa, Alicia M Díaz-García, Celio L Cavalcante, Enrique Vilarrasa-García, Enrique Rodríguez-Castellón, Daniel Ballesteros-Plata, Giselle I Autié-Castro","doi":"10.3390/molecules29215219","DOIUrl":null,"url":null,"abstract":"ZnO nanoparticles functionalized with APTES were obtained to evaluate their CH4 and CO2 adsorption at 298 K in a range between 0 and 10 bar. First, ZnO nanoparticles were obtained by a precipitation method and subsequently coated with (3-aminopropyl)triethoxysilane (APTES). As a preliminary study, the results were compared with previously reported naked nanoparticles in order to evaluate the influence of APTES coating on CO2 selectivity. UV-Vis, FT-IR spectroscopy, TGA, XRD, TEM/EDX, XPS and N2 adsorption at 77 K were used to characterize the evaluated material. It was observed that the amount of gas adsorbed on the surface of the nanostructure was very small in comparison with other materials traditionally used for this purpose but slightly higher than those obtained in naked nanoparticles evaluated in previous studies. The affinity of CO2 for the amines groups of the APTES ligand was also discussed.","PeriodicalId":19041,"journal":{"name":"Molecules","volume":"29 21","pages":""},"PeriodicalIF":4.2000,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11547500/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecules","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3390/molecules29215219","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

ZnO nanoparticles functionalized with APTES were obtained to evaluate their CH₄ and CO₂ adsorption at 298 K in a range between 0 and 10 bar. First, ZnO nanoparticles were obtained by a precipitation method and subsequently coated with (3-aminopropyl)triethoxysilane (APTES). As a preliminary study, the results were compared with previously reported naked nanoparticles in order to evaluate the influence of APTES coating on CO₂ selectivity. UV-Vis, FT-IR spectroscopy, TGA, XRD, TEM/EDX, XPS and N₂ adsorption at 77 K were used to characterize the evaluated material. It was observed that the amount of gas adsorbed on the surface of the nanostructure was very small in comparison with other materials traditionally used for this purpose but slightly higher than those obtained in naked nanoparticles evaluated in previous studies. The affinity of CO₂ for the amines groups of the APTES ligand was also discussed.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

评估 APTES 功能化氧化锌纳米颗粒对 CH4 和 CO2 的吸附作用。

研究人员获得了用 APTES 功能化的氧化锌纳米粒子，以评估它们在 298 K、0 至 10 巴范围内对 CH4 和 CO2 的吸附能力。首先，通过沉淀法获得氧化锌纳米粒子，然后在其表面涂覆 (3-aminopropyl)triethoxysilane (APTES)。作为初步研究，研究结果与之前报道的裸纳米颗粒进行了比较，以评估 APTES 涂层对二氧化碳选择性的影响。紫外-可见光谱、傅立叶变换红外光谱、热重分析、X射线衍射、TEM/EDX、XPS 和 77 K 下的 N2 吸附被用来表征所评估材料的特性。据观察，与传统上用于此目的的其他材料相比，纳米结构表面的气体吸附量非常小，但略高于之前研究中评估的裸纳米颗粒。此外，还讨论了二氧化碳与 APTES 配体的胺基团的亲和性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Molecules 化学-有机化学

CiteScore

7.40

自引率

8.70%

发文量

7524

审稿时长

1.4 months

期刊介绍： Molecules (ISSN 1420-3049, CODEN: MOLEFW) is an open access journal of synthetic organic chemistry and natural product chemistry. All articles are peer-reviewed and published continously upon acceptance. Molecules is published by MDPI, Basel, Switzerland. Our aim is to encourage chemists to publish as much as possible their experimental detail, particularly synthetic procedures and characterization information. There is no restriction on the length of the experimental section. In addition, availability of compound samples is published and considered as important information. Authors are encouraged to register or deposit their chemical samples through the non-profit international organization Molecular Diversity Preservation International (MDPI). Molecules has been launched in 1996 to preserve and exploit molecular diversity of both, chemical information and chemical substances.