When the past meets the present: New insights into the synthesis and photoelectrochemical stability of mosaic gold

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-03-17 DOI:10.1016/j.dyepig.2025.112772

Anna Kusior , Kinga Michalec , Marta Radecka , Victoria Beltran , Karolien De Wael

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引用次数: 0

Abstract

Tin sulfides are widely used in various applications, such as lithium-ion batteries, photodetectors, photocatalysts, and photovoltaic cells. SnS₂ (mosaic gold) is mainly known for its stability and effectiveness as a reductive photocatalyst. However, it is vulnerable to corrosion from light exposure and environmental factors, but the mechanism behind these reactions are not well understood. In this study, SnS₂ synthesized by three methods, salt melting, hydrothermal synthesis, and solid-state reaction, were investigated, and their morphological and phase composition were studied. The stability of the materials under different light sources and environmental conditions was analyzed by electrochemical measurements, scanning electron microscopy (SEM), X-ray diffraction (XRD), spectroscopy and Raman imaging. The results demonstrate that the photostability of SnS₂ pigments is influenced by their composition and morphology, with non-stoichiometric and flower-like structures exhibiting enhanced resistance. This research contributes to understanding the pigment's stability. Raman spectroscopy spot analysis revealed the presence of a multiphase composition, suggesting local changes in structure. However, the overall photostability is guaranteed by the geometry and purity of the mosaic gold particles.

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当过去与现在相遇：对马赛克金的合成及其光电化学稳定性的新认识

硫化锡广泛应用于锂离子电池、光电探测器、光催化剂、光伏电池等领域。SnS2（马赛克金）主要以其稳定性和作为还原性光催化剂的有效性而闻名。然而，它容易受到光照射和环境因素的腐蚀，但这些反应背后的机制尚不清楚。本研究考察了盐熔法、水热法和固相法合成SnS2的方法，并对其形态和物相组成进行了研究。采用电化学测量、扫描电镜（SEM）、x射线衍射（XRD）、光谱学和拉曼成像等方法分析了材料在不同光源和环境条件下的稳定性。结果表明，SnS2色素的光稳定性受其组成和形态的影响，非化学计量结构和花状结构表现出增强的抗性。这项研究有助于了解色素的稳定性。拉曼光谱斑点分析显示存在多相组成，表明局部结构发生了变化。然而，马赛克金颗粒的几何形状和纯度保证了整体的光稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.