Two-dimension (2D) semiconductor MoS₂ is regarded as a potential photocatalyst due to its high optical absorption and surface area. However, poor charge separation process hinders its performance. To resolve this problem, herein, various dispersants, including anionic dispersant of sodium dodecyl sulphate (SDS) and cationic dispersants of polyethyleneimine (PEI) and hexadecyltrimethylammonium bromide (CTAB), were used to fabricate 2D/1D MoS₂/carbon nanotube (MoS₂/CNTs) composites through a rather facile hydrothermal process. In the presence of SDS, the in situ obtained MoS₂ nanosheet-coated CNTs core-shell heterostructure exhibits the highest photocatalytic and photocurrent response among all the samples. The anionic SDS provides negative charges on the surface of CNTs and promotes the formation of strong interaction between MoS₂ and the nanotubes. The formation mechanism and reasons for the property enhancement of the composites were proposed in the paper. This method holds great promise to fabricate CNTs-based hybrid materials for solar energy utilization and photoelectric sensing.

二维（2D）半导体MoS ₂由于其高的光吸收率和表面积而被视为潜在的光催化剂。但是，不良的电荷分离过程会阻碍其性能。为了解决该问题，在此，使用各种分散剂，包括十二烷基硫酸钠的阴离子分散剂（SDS）和聚乙烯亚胺（PEI）和十六烷基三甲基溴化铵的阳离子分散剂（CTAB），来制造2D / 1D MoS ₂ /碳纳米管（MoS ₂ / CNTs）复合材料通过相当容易的水热过程。在SDS存在下，原位获得MoS ₂在所有样品中，纳米片包覆的CNTs核-壳异质结构表现出最高的光催化和光电流响应。阴离子SDS在CNT的表面上提供负电荷，并促进MoS ₂和纳米管之间形成强相互作用。提出了复合材料性能提高的形成机理和原因。该方法具有制造用于太阳能利用和光电传感的基于CNTs的混合材料的巨大前景。