Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have emerged as perfect platforms for developing applications in nano-electronics, catalysis, energy storage and environmental-related fields due to their superior properties. However, the low-cost, batch production of high-quality 2D TMDCs remains a huge challenge with the existing synthetic strategies. Herein, we present a scalable chemical vapor deposition (CVD) approach for the batch production of high-quality MoS₂ nanosheet powders, by using naturally abundant, water-soluble and recyclable NaCl crystal powders as templates. The high-quality MoS₂ nanosheets powders are achieved by a facile water dissolution-filtration process, by virtue of the excellent dispersibility of the as-grown products in water. The internal mechanism for the scalable synthesis strategy is explored. The applications of the MoS₂ nanosheets powders are also demonstrated as catalysts or adsorbents in hydrogen evolution reaction (HER) and organic dyes adsorption, respectively. This work should hereby pave ways for the mass production and application of powdery TMDCs in energetic and environmental related fields.

二维（2D）过渡金属二硫化碳（TMDC）由于其卓越的性能已经成为开发在纳米电子学，催化，能量存储和环境相关领域中应用的理想平台。然而，利用现有的合成策略，低成本，批量生产高质量2D TMDC仍然是巨大的挑战。在这里，我们提出了一种可扩展的化学气相沉积（CVD）方法，通过使用自然丰富，水溶性和可回收的NaCl晶体粉末作为模板，批量生产高质量的MoS ₂纳米片粉末。高质量的MoS ₂纳米片粉末是通过一种便捷的水溶解-过滤工艺来实现的，这是由于所生长的产品在水中的出色分散性。探索了可扩展综合策略的内部机制。还证明了MoS ₂纳米片粉末在氢析出反应（HER）和有机染料吸附中分别作为催化剂或吸附剂的应用。因此，这项工作应为在能源和环境相关领域中大规模生产和应用粉状TMDC铺平道路。