Impact of titanium on the catalytic activity of Zn–BDC and Cu–BDC thin films in the photoreduction of CO₂

IF 3.4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Mechanical and Materials Engineering Pub Date : 2025-03-07 DOI:10.1186/s40712-025-00237-4

Espinoza–Tapia Julio César, Hernández–Pérez Isaías, Becerril–Landero Luis Alberto, González–Reyes Leonardo, Huerta–Arcos Lázaro, Barrera–Calva Enrique, Falcony–Guajardo Ciro

{"title":"Impact of titanium on the catalytic activity of Zn–BDC and Cu–BDC thin films in the photoreduction of CO₂","authors":"Espinoza–Tapia Julio César, Hernández–Pérez Isaías, Becerril–Landero Luis Alberto, González–Reyes Leonardo, Huerta–Arcos Lázaro, Barrera–Calva Enrique, Falcony–Guajardo Ciro","doi":"10.1186/s40712-025-00237-4","DOIUrl":null,"url":null,"abstract":"<div><p>The present text deals with the study of thin films of metal–organic frameworks (MOF) materials based on Zn–BDC, Cu–BDC, and their modified versions with titanium incorporations at 5 and 10% mol. These materials were synthesized by chemically assisted vapor deposition (AACVD) technique and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, band gap determination, and photoluminescence spectroscopy.</p><p>The results indicated that the incorporation of titanium modifies the structural, optical, and electronic properties of these MOFs, decreasing their band gap and altering their light absorption and emission characteristics. Furthermore, their efficiency as photocatalysts in the photoreduction of CO₂ in an aqueous system was evaluated, using liquid chromatography (HPLC) to analyze the products.</p><p>It was found that Cu–BDC exhibited higher efficiency compared to Zn–BDC, and the incorporation of titanium significantly improved the catalytic activity of both materials. The 10% Ti–Cu–BDC showed the highest efficiency, with a total yield of 344 mmol/L of products and a conversion efficiency of 56.4%. These results suggest that modification of MOFs with titanium is an effective strategy to optimize their performance in CO₂ photoreduction and other environmental and energy applications.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00237-4","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mechanical and Materials Engineering","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1186/s40712-025-00237-4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

The present text deals with the study of thin films of metal–organic frameworks (MOF) materials based on Zn–BDC, Cu–BDC, and their modified versions with titanium incorporations at 5 and 10% mol. These materials were synthesized by chemically assisted vapor deposition (AACVD) technique and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, band gap determination, and photoluminescence spectroscopy.

The results indicated that the incorporation of titanium modifies the structural, optical, and electronic properties of these MOFs, decreasing their band gap and altering their light absorption and emission characteristics. Furthermore, their efficiency as photocatalysts in the photoreduction of CO₂ in an aqueous system was evaluated, using liquid chromatography (HPLC) to analyze the products.

It was found that Cu–BDC exhibited higher efficiency compared to Zn–BDC, and the incorporation of titanium significantly improved the catalytic activity of both materials. The 10% Ti–Cu–BDC showed the highest efficiency, with a total yield of 344 mmol/L of products and a conversion efficiency of 56.4%. These results suggest that modification of MOFs with titanium is an effective strategy to optimize their performance in CO₂ photoreduction and other environmental and energy applications.

查看原文本刊更多论文

钛对Zn-BDC和Cu-BDC薄膜光还原CO₂催化活性的影响

本文研究了基于Zn-BDC， Cu-BDC及其在5%和10% mol / l掺杂下改性的金属有机骨架（MOF）材料的薄膜。这些材料采用化学辅助气相沉积（AACVD）技术合成，并通过x射线衍射（XRD），扫描电子显微镜（SEM），拉曼光谱，带隙测定和光致发光光谱等各种技术进行了表征。结果表明，钛的掺入改变了mof的结构、光学和电子性能，减小了它们的带隙，改变了它们的光吸收和发射特性。此外，利用液相色谱（HPLC）对产物进行分析，评价了它们作为光催化剂在水体系中光还原CO₂的效率。结果表明，Cu-BDC比Zn-BDC具有更高的催化效率，钛的掺入显著提高了两种材料的催化活性。10% Ti-Cu-BDC效率最高，产物总收率为344 mmol/L，转化效率为56.4%。这些结果表明，用钛修饰mof是优化其在CO₂光还原和其他环境和能源应用中的性能的有效策略。

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分钟内获得全文求助全文

来源期刊