In this work, FeCoS₂ was synthesised via a modulated hydrothermal method. With the hydrothermal temperature being increased, the microstructure of the as-obtained FeCoS₂ evolved from the initial ultrathin nanosheets to the final microspheres, which were also assembled from these nanosheets. Meanwhile, X-ray diffraction results illustrated that the degree of the [101] preferred orientation was gradually reduced with increasing hydrothermal temperature. When being evaluated as a photocatalyst toward the photodegradation of methylene blue, FeCoS₂ presented itself as a promising candidate for the photocatalytic degradation. When the as-obtained FeCoS₂ was tested as an anode material for Na-ion batteries, it could deliver a first discharge capacity of 806 mA h g⁻¹ at 50 mA g⁻¹. In addition, the magnetic properties of the temperature-dependent FeCoS₂ products were also investigated, demonstrating that FeCoS₂ nanosheets obtained at 170 °C exhibited the most evident ferromagnetic characteristics. The current research illustrates FeCoS₂'s potential for diverse applications in modern materials science and devices.

中文翻译：

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FeCoS ₂的合成及其理化性能的见解†

在这项工作中，FeCoS ₂是通过调制水热法合成的。随着水热温度的升高，所获得的FeCoS ₂的微观结构从最初的超薄纳米片演化为最终的微球，最终的微球也由这些纳米片组装而成。同时，X射线衍射结果表明，[101]优选取向度随着水热温度的升高而逐渐降低。当被评价为对亚甲基蓝光降解的光催化剂时，FeCoS ₂本身就成为光催化降解的有希望的候选者。当FeCoS ₂获得时作为Na-离子电池的负极材料经过测试，它在50 mA g ^-1时可提供806 mA hg ^-1的第一放电容量。此外，还研究了随温度变化的FeCoS ₂产品的磁性能，表明在170°C下获得的FeCoS ₂纳米片表现出最明显的铁磁特性。当前的研究表明FeCoS ₂在现代材料科学和设备中的多种应用潜力。