Cerium Metal–Organic Framework Incorporating Quinoline Sulfonic Acid for Photocatalytic Carbon Dioxide Reduction

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-05-21 DOI:10.1021/acsmaterialslett.5c0034210.1021/acsmaterialslett.5c00342

Yingying Li, Tong Hao, Yu-Peng Han, Hui-Zi Li, Yayu Yan, Qiao-Hong Li, Shumei Chen*, Fei Wang* and Jian Zhang*,

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Abstract

Cerium metal–organic frameworks (Ce-MOFs) have attracted extensive attention due to their potential in photocatalytic applications. However, Ce-MOFs constructed with organic carboxylic acids as ligands typically exhibit wide band gaps, which limit their utilization in the visible-light region. This work proposes a strategy to design visible-light-active Ce-MOFs by employing quinoline sulfonic acid as a ligand. The synthesized compound (1-Ce) features a high surface area, open Ce metal sites, and large-sized 1D channels. Benefiting from ligand-to-metal charge transfer, 1-Ce demonstrates good visible light absorption. Additionally, the chelating coordination of nitrogen and oxygen atoms endows 1-Ce with excellent chemical stability. Owing to its abundant metal sites, high porosity, and visible light responsiveness, 1-Ce exhibits outstanding photocatalytic activity for CO₂ reduction under visible light, achieving a CO production rate of 138 μmol·g^–1·h^–1─surpassing previously reported Ce-MOF photocatalysts.

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含喹啉磺酸的金属铈-有机骨架光催化二氧化碳还原

铈金属有机骨架（Ce-MOFs）因其在光催化方面的潜在应用而受到广泛关注。然而，以有机羧酸为配体构建的Ce-MOFs通常具有较宽的带隙，这限制了它们在可见光区域的应用。本研究提出了一种以喹啉磺酸为配体设计可见光活性ce - mof的方法。合成的化合物（1-Ce）具有高表面积、开放的Ce金属位和大尺寸的1D通道。得益于配体到金属的电荷转移，1-Ce表现出良好的可见光吸收。此外，氮和氧原子的螯合配位使1-Ce具有优异的化学稳定性。由于其丰富的金属位、高孔隙率和可见光响应性，1-Ce在可见光下表现出出色的CO2还原光催化活性，CO产率达到138 μmol·g-1·h-1，超过了先前报道的Ce-MOF光催化剂。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.