Obtaining of Luminescent Sulfur Nanoparticles in the L-Cysteine–Citrate–Sodium Sulfide System

IF 0.7 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Theoretical and Experimental Chemistry Pub Date : 2023-07-31 DOI:10.1007/s11237-023-09771-8
V. G. Pylypko, P. M. Fochuk
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Abstract

An obtaining of sulfur nanoparticles by hydrothermal method in aqueous solution of L-cysteine, citrate ions, and sodium sulfide is proposed. The optical properties of the obtained sulfur nanoparticles have been studied by UV-Visible absorption and photoluminescence spectroscopies. Transmission and scanning electron microscopies and atomic force microscopy indicate that sulfur nanoparticles are quasi-spherical, their diameter depends on heat treatment time reaching an average size of 28 nm after 8 h of heating at 378 K. The nanoparticles exhibit photoluminescence in the range from 388 to 515 nm depending on the excitation wavelength. The obtained colloid systems have lasting sedimentation stability and high photoluminescence intensity, which make them promising for further wide application.

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l -半胱氨酸-柠檬酸盐-硫化钠体系中发光硫纳米粒子的制备
提出了在l -半胱氨酸、柠檬酸离子和硫化钠的水溶液中水热法制备硫纳米颗粒的方法。利用紫外-可见吸收光谱和光致发光光谱研究了硫纳米颗粒的光学性质。透射电镜、扫描电镜和原子力显微镜观察表明,硫纳米颗粒呈准球形,其直径与热处理时间有关,在378 K加热8 h后,其平均尺寸为28 nm。根据激发波长的不同,纳米颗粒在388 ~ 515 nm范围内表现出光致发光。所制备的胶体体系具有持久的沉降稳定性和较高的光致发光强度,具有广泛的应用前景。
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来源期刊
Theoretical and Experimental Chemistry
Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
10.00%
发文量
30
审稿时长
6-12 weeks
期刊介绍: Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
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