Functionalization of graphitic C3N5 with Pd nanoparticles: An efficient photocatalyst for Suzuki-Miyaura coupling reaction,Applied Organometallic Chemistry

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Functionalization of graphitic C3N5 with Pd nanoparticles: An efficient photocatalyst for Suzuki-Miyaura coupling reaction
Applied Organometallic Chemistry ( IF 3.7 ) Pub Date : 2023-06-22 , DOI: 10.1002/aoc.7177
Maryam Mohammadikish ₁ , Nazanin Mosleh ₁

Affiliation

Utilizing sunlight as a driving force in chemical reactions is a great benefit for a sustainable future. Metal-based composites are basic components in various catalytic reactions. However, few researches reported carbon nitride-supported Pd nanoparticles in photocatalytic coupling reactions. This study reports the preparation of a graphitic-carbon nitride system (C₃N₅) followed by modification with various amounts of Pd nanoparticles. The C₃N₅ was synthesized by thermal deammoniation of melem hydrazine precursor and then modified by Pd cations to create a metallic composite. Regarding the N-rich surface of C₃N₅, Pd²⁺ cations are rapidly reduced to Pd nanoparticles in mild conditions, which is strongly supported by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses. Moreover, field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM) analyses clearly depicted the formation of 20 nm Pd nanoparticles on the surface of C₃N₅. The obtained Pd/C₃N₅ composite exhibited prominent photocatalytic performance for Suzuki-Miyaura coupling reactions (91% during 25 min at room temperature). This study also compares the effect of various amounts of Pd cation in the progress of Suzuki-Miyaura coupling reactions.

中文翻译：

Pd 纳米粒子对石墨 C3N5 的功能化：铃木-宫浦偶联反应的高效光催化剂

利用阳光作为化学反应的驱动力对于可持续的未来有很大好处。金属基复合材料是各种催化反应的基本组成部分。然而，很少有研究报道氮化碳负载的钯纳米粒子在光催化偶联反应中的作用。_{本研究报告了石墨-氮化碳系统 (C 3} N ₅ )的制备，然后用不同量的 Pd 纳米粒子进行修饰。C ₃ N ₅通过蜜勒胺肼前体的热脱氨合成，然后用Pd阳离子改性以产生金属复合材料。_{关于C 3} N ₅、Pd ²⁺的富氮表面在温和条件下，阳离子迅速还原为 Pd 纳米颗粒，X 射线光电子能谱 (XPS) 和 X 射线衍射 (XRD) 分析有力地支持了这一点。此外，场发射扫描电子显微镜（FESEM）和高分辨率透射电子显微镜（HRTEM）分析清楚地描绘了C 3 N 5 表面上20 nm Pd纳米_颗粒的_形成。所获得的Pd/C ₃ N ₅复合材料对Suzuki-Miyaura偶联反应表现出突出的光催化性能（室温25分钟内91%）。本研究还比较了不同量的 Pd 阳离子对 Suzuki-Miyaura 偶联反应进程的影响。

更新日期：2023-06-22

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