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Green Synthesis up to Geometric Gold Microparticles
Journal of Inorganic and Organometallic Polymers and Materials ( IF 4 ) Pub Date : 2020-10-07 , DOI: 10.1007/s10904-020-01721-4
M. Cortez-Valadez , L. P. Ramírez-Rodríguez , F. Martínez-Suarez , R. A. Vargas-Ortiz , F. F. Castillón-Barraza , M. Flores-Acosta

In this work the study of optical properties of micro and nanostructured particles of gold is approached. A method of nanoparticle stabilization synthesis based on the philosophy of green chemistry by using orange extract (Citrus X sinensis) was proposed. Controlling specific parameters of the proposed synthesis method, particles with sizes lower than 50 nm were obtained and after the heat treatment the geometric particle sizes ranged from 0.2 to 2 μm. The optical absorption of the particles was studied finding absorption bands associated with the surface plasmon resonance. Experimentally, the nanomaterials obtained were tested on pyridine as SERS substrate. Complementary, in order to find clues of vibrational behavior, theoretically the interaction with pyridine molecule and gold layer structure were considered. The individual systems were perturbed by incident radiation with blue (435 nm), green (532 nm), red (638 nm) and infrared (785 nm and 1064) wavelengths for its SERS analysis.



中文翻译:

绿色合成,直至几何金微粒

在这项工作中,研究了金的微观和纳米结构的光学特性。一种基于绿色化学原理的橙皮提取物(Citrus X sinensis)纳米稳定合成方法。)的提议。控制所提出的合成方法的特定参数,获得尺寸小于50nm的颗粒,并且在热处理之后,几何颗粒尺寸为0.2至2μm。研究了颗粒的光吸收,发现了与表面等离子体共振相关的吸收带。实验上,在作为SERS底物的吡啶上测试了获得的纳米材料。作为补充,为了找到振动行为的线索,理论上考虑了与吡啶分子和金层结构的相互作用。单独的系统受到蓝色(435 nm),绿色(532 nm),红色(638 nm)和红外(785 nm和1064)波长的入射辐射的干扰,以进行SERS分析。

更新日期:2020-10-07
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