用NaBH4蚀刻增强G - C3N4@ Ag复合材料双功能催化性能

IF 2.7 4区 材料科学 Q3 CHEMISTRY, PHYSICAL
Yue‐Feng Tang, Meng‐Yun Zhao, Guo‐Zhi Han
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引用次数: 0

摘要

摘要本文报道了一种新型的g - c3n4和银纳米粒子(g - c3n4 @Ag)的复合材料,通过化学蚀刻增强了双功能催化活性。首先用一锅法合成了一种g - c3n4 @Ag复合材料,然后用硼氢化钠(NaBH 4)溶液处理一定时间。g - c3n4 @Ag复合材料经过处理后,其性能和形貌发生了较大的变化。与原始的g - c3n4 @Ag复合材料相比,NaBH - 4蚀刻使g - c3n4 @Ag复合材料(RACN)具有更光滑的二维平面结构,并且由于Ag纳米颗粒与g - c3n4之间更强的化学联系而使共轭体系得到扩展。此外,研究结果表明,RACN对芳香族硝基化合物的还原表现出优异的广谱催化性能,经处理后,RACN的催化效率提高了数十倍。此外,RACN的光催化活性也大大提高。这一发现为化学蚀刻提高半导体和金属纳米颗粒复合材料的催化活性提供了一种有效而简便的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Enhancement of Bifunctional Catalytic Performance of G‐C<sub>3</sub>N<sub>4</sub>@ Ag Composite by NaBH<sub>4</sub> Etching

Enhancement of Bifunctional Catalytic Performance of G‐C3N4@ Ag Composite by NaBH4 Etching
Abstract Herein, a novel composite of g‐C 3 N 4 and silver nanoparticles(g‐C 3 N 4 @Ag) with enhanced bifunctional catalytic activity through chemical etching is reported. A kind of g‐C 3 N 4 @Ag composite by one‐pot route, then treated the product with sodium borohydride (NaBH 4 ) solution for a certain time is first synthesized. The property and morphology of the g‐C 3 N 4 @Ag composite changed greatly after the treatment. Compared with the pristine g‐C 3 N 4 @Ag composite, the NaBH 4 ‐etching endowed g‐C 3 N 4 @Ag composite (RACN) with smoother two‐dimensional plane structure, as well as an extension of the conjugate system which originating from the stronger chemical connection between the Ag nanoparticles and g‐C 3 N 4 . Furthermore, research results indicated that the RACN showed superior broad‐spectrum catalytic performance for the reduction of aromatic nitro compounds, and the catalytic efficiency of the RACN is enhanced dozens of times by the treatment. Moreover, the photocatalytic activity of the RACN is also greatly improved. This discovery provides an efficient and facile method toward the enhancement of catalytic activity of semiconductor and metal nanoparticle composites by chemical etching.
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来源期刊
Particle & Particle Systems Characterization
Particle & Particle Systems Characterization 工程技术-材料科学:表征与测试
CiteScore
5.50
自引率
0.00%
发文量
114
审稿时长
3.0 months
期刊介绍: Particle & Particle Systems Characterization is an international, peer-reviewed, interdisciplinary journal focusing on all aspects of particle research. The journal joined the Advanced Materials family of journals in 2013. Particle has an impact factor of 4.194 (2018 Journal Impact Factor, Journal Citation Reports (Clarivate Analytics, 2019)). Topics covered include the synthesis, characterization, and application of particles in a variety of systems and devices. Particle covers nanotubes, fullerenes, micelles and alloy clusters, organic and inorganic materials, polymers, quantum dots, 2D materials, proteins, and other molecular biological systems. Particle Systems include those in biomedicine, catalysis, energy-storage materials, environmental science, micro/nano-electromechanical systems, micro/nano-fluidics, molecular electronics, photonics, sensing, and others. Characterization methods include microscopy, spectroscopy, electrochemical, diffraction, magnetic, and scattering techniques.
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