Phase and defect engineering of the heterostructured MoS₂@TiO₂ nanoporous film is investigated to achieve a broad solar spectrum light absorption and high solar water splitting efficiency. The phase transition from the semiconducting 2H‐MoS₂ to the metallic 1T‐MoS₂ is achieved by a hydrothermal exfoliation treatment. Experimental studies elucidate that the solar water splitting activity is greatly improved by forming 1T‐MoS₂ along with increasing S‐vacancies because of the significantly enhanced surface plasmon resonance. The mixed‐phase MoS₂@TiO₂ film shows a high H₂ yield rate of 308 µmol h⁻¹ cm⁻² and long‐term durability for 30 h, which is superior to the state‐of‐the‐art catalysts for solar water splitting. This study offers a universal and efficient avenue to rationalize the plasmonic catalysts for solar water splitting and other energy and environmental applications.

中文翻译：

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周期性TiO2纳米多孔膜中稳定的MoS2的相和缺陷工程，用于增强太阳能水的分解

研究了异质结构的MoS ₂ @TiO ₂纳米多孔膜的相和缺陷工程，以实现宽广的太阳光谱光吸收和高的太阳水分解效率。从半导体2H-MoS ₂到金属1T-MoS ₂的相变是通过水热剥落处理实现的。实验研究表明，由于表面等离子体激元共振的显着增强，形成1T-MoS ₂以及增加S-空位可大大提高太阳能的水分解活性。MoS ₂ @TiO ₂混合相薄膜的H ₂产率高，为308 µmol h ^-1 cm⁻²和30小时的长期耐用性，优于用于太阳能水分解的最先进的催化剂。这项研究提供了一种通用而有效的途径，可以合理化等离子体激元催化剂用于太阳能水分解以及其他能源和环境应用。