光催化
氮化碳
材料科学
吸附
异质结
石墨氮化碳
化学工程
催化作用
共价键
共价有机骨架
化学
有机化学
光电子学
工程类
作者
Panagiota Bika,Ilias Papailias,T. Giannakopoulou,Christos Tampaxis,Theodore Steriotis,C. Trapalis,Panagiotis Dallas
出处
期刊:Catalysts
[MDPI AG]
日期:2023-09-29
卷期号:13 (10): 1331-1331
被引量:1
标识
DOI:10.3390/catal13101331
摘要
New heterojunction materials (HJs) were synthesized in-situ by molecularly bonding the monomers of a triazine-based covalent organic framework (bulk COF) on the template of exfoliated carbon nitride (g-C3N4). The photocatalysts reduced carbon dioxide to carbon monoxide in aqueous dispersions under UV irradiation. The g-C3N4 showed production of 6.50 μmol CO g−1 h−1 and the bulk COF of 2.77 μmol CO g−1 h−1. The CO yield was evaluated in sustainability photoreduction cycles and their CO2 uptake capacity and isosteric heat of adsorption were estimated. All the heterojunction photocatalysts obtained ameliorated CO production rates compared to the bulk COF. Finally, the influence of the Pt co-catalyst on the photocatalytic activities was determined without the addition of any sacrificial agent, and the COF:g-C3N4 heterojunction with the ratio of 1:10 was proven to be a photocatalytic system with an optimum and selective, CO yield of 7.56 μmol g−1 h−1.
科研通智能强力驱动
Strongly Powered by AbleSci AI