利用掺铂氮化石墨碳光催化剂提高太阳光驱动的二氧化碳转化率

IF 2.7 4区 环境科学与生态学 Q3 ENERGY & FUELS Greenhouse Gases: Science and Technology Pub Date : 2023-12-06 DOI:10.1002/ghg.2247
Thi Huong Pham, Minh Viet Nguyen, Thi Thu Hien Chu, Sung Hoon Jung, Taeyoung Kim
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引用次数: 0

摘要

随着大气中二氧化碳(CO2)含量的不断增加,我们需要创新、高效的方法来减少二氧化碳。在此背景下,我们提出了一种先进的太阳能光催化剂--掺铂氮化石墨(Pt/g-C3N4),专门用于增强二氧化碳的光还原。我们的研究结果凸显了 Pt/g-C3N4 的双重优势:增强的可见光吸收和电子-空穴对动力学,确保了高效的载流子分离。值得注意的是,使用 Pt/g-C3N4 催化剂的 CO 和 CH4 产率分别比使用原始 g-C3N4 催化剂的产率高出 3.1 倍和 4.3 倍。此外,Pt/g-C3N4 催化剂在连续循环中表现出持续的高效二氧化碳转化率,突出了催化剂的稳健性。这项研究强调了 Pt/g-C3N4 作为一种可行工具来应对二氧化碳含量不断攀升的潜力,为将这种主要温室气体转化为有益化学品的绿色和可持续发展铺平了道路。© 2023 化学工业协会和 John Wiley & Sons, Ltd. 保留所有权利。
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Enhanced solar-light driven CO2 conversion using Pt-doped graphitic carbon nitride photocatalyst

The increasing levels of carbon dioxide (CO2) in our atmosphere demand innovative and efficient methods for its reduction. In this context, we present an advanced solar-driven photocatalyst, Pt-doped graphitic carbon nitride (Pt/g-C3N4), specifically engineered for enhanced photoreduction of CO2. Our findings highlight the dual advantage of Pt/g-C3N4: enhanced visible light absorption and electron-hole pair dynamics, ensuring efficient carrier separation. Notably, the CO and CH4 yields, when employing Pt/g-C3N4, surpassed those with the pristine g-C3N4 catalyst by factors of 3.1 and 4.3, respectively. Moreover, the Pt/g-C3N4 catalyst exhibited consistent high-efficiency of CO2 conversion over successive cycles, emphasizing the catalyst's robustness. This work underscores the potential of Pt/g-C3N4 as a viable tool against escalating CO2 levels, paving the way for a green and sustainable conversion of this predominant greenhouse gas into beneficial chemicals. © 2023 Society of Chemical Industry and John Wiley & Sons, Ltd.

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来源期刊
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology ENERGY & FUELS-ENGINEERING, ENVIRONMENTAL
CiteScore
4.90
自引率
4.50%
发文量
55
审稿时长
3 months
期刊介绍: Greenhouse Gases: Science and Technology is a new online-only scientific journal dedicated to the management of greenhouse gases. The journal will focus on methods for carbon capture and storage (CCS), as well as utilization of carbon dioxide (CO2) as a feedstock for fuels and chemicals. GHG will also provide insight into strategies to mitigate emissions of other greenhouse gases. Significant advances will be explored in critical reviews, commentary articles and short communications of broad interest. In addition, the journal will offer analyses of relevant economic and political issues, industry developments and case studies. Greenhouse Gases: Science and Technology is an exciting new online-only journal published as a co-operative venture of the SCI (Society of Chemical Industry) and John Wiley & Sons, Ltd
期刊最新文献
Issue Information Core-flooding experiments of various concentrations of CO2/N2 mixture in different rocks: II. Effect of rock properties on residual water Development of a multicomponent counter-current flow model to evaluate the impact of oxygen and water vapor on CO2 removal performance in a hollow fiber membrane contactor Invasion percolation & basin modelling for CCS site screening and characterization A study on degradation and CO2 capture performance of aqueous amino acid salts for direct air capture applications
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