Tetrahedrite (Cu₁₂Sb₄S₁₃) is a highly promising environmentally friendly material for energy conversion applications but its synthesis generally requires several days of heating at high temperature conditions. To fabricate tetrahedrite in a more rapid way and under milder conditions, solvothermal synthesis has been recently explored. However, a common problem faced when using this technique is the formation of significant amounts of other ternary Cu–Sb–S phases along with the desired tetrahedrite phase. Here, we present an optimized solvothermal procedure for synthesizing high-purity samples of tetrahedrite at moderate temperatures and reasonable heating times. The as-prepared samples are single-crystalline nanometer-sized structures having multiple voids or pores. By modifying certain experimental parameters such as the reaction temperature and heating time, we have shown that we can alter the nanocrystal architecture. The formation mechanism was investigated and it was found that these porous tetrahedrite nanostructures are a product of the non-classical oriented aggregation growth process. Porosity in nanomaterials is known to improve material properties and is desirable in many important applications so the construction of void-containing tetrahedrite nanostructures will potentially extend the utility of tetrahedrite to a wider range of applications. In this work, we explore its possible use as a photothermal-responsive drug delivery vehicle.

中文翻译：

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具有独特的多空隙形态的原始四面体纳米结构的轻松溶剂热方法

四面体（Cu ₁₂ Sb ₄ S ₁₃）是一种非常有前途的环保材料，可用于能量转换应用，但其合成通常需要在高温条件下加热几天。为了以更快的方式和在较温和的条件下制造四面体，最近已经探索了溶剂热合成。但是，使用该技术时面临的一个普遍问题是大量其他三元Cu-Sb-S三元相以及所需的四面体相的形成。在这里，我们提出了一种优化的溶剂热程序，用于在中等温度和合理的加热时间下合成高纯度的四面体样品。所制备的样品是具有多个空隙或孔的单晶纳米尺寸的结构。通过修改某些实验参数，例如反应温度和加热时间，我们已经表明，我们可以改变纳米晶体的结构。研究了形成机理，发现这些多孔四面体纳米结构是非经典取向聚集体生长过程的产物。已知纳米材料中的孔隙率可改善材料性能，并且在许多重要应用中是期望的，因此含空隙的四面体纳米结构的构造将潜在地将四面体的用途扩展到更广泛的应用范围。在这项工作中，我们探索了其可能用作光热响应性药物递送工具。已知纳米材料中的孔隙率可改善材料性能，并且在许多重要应用中是期望的，因此含空隙的四面体纳米结构的构造将潜在地将四面体的用途扩展到更广泛的应用范围。在这项工作中，我们探索了其可能用作光热响应性药物递送工具。已知纳米材料中的孔隙率可改善材料性能，并且在许多重要应用中是期望的，因此含空隙的四面体纳米结构的构造将潜在地将四面体的用途扩展到更广泛的应用范围。在这项工作中，我们探索了其可能用作光热响应性药物递送工具。