Indium sulfide (In₂S₃) has been proven to be a photocatalyst with giant potential, but its photocatalytic activity is still severely limited by the disadvantages such as the sluggish charge separation. Herein, a series of novel photocatalysts with Type-II In₂S₃/bismuth molybdate (Bi₂MoO₆) heterostructures were handily fabricated through hydrothermal route. Under 90 minutes of visible light illumination, all the In₂S₃/Bi₂MoO₆ heterostructures demonstrated more splendid activity for Rhodamine B (RhB) degradation than pure In₂S₃ and Bi₂MoO₆ at low catalyst dose (0.2 g/L). Especially, the IB-2 displayed the highest degradation efficiency (88.2 %) and the fastest degradation velocity (k=0.02826 min^-1), where its k value was nearly 2.48 and 6.51 times stronger than that of In₂S₃ and Bi₂MoO₆, respectively. More importantly, the removal efficiency was still above 81.4 % after 4 cycles. The reinforced photocatalytic activity was ascribed to the increase of active sites, extending of visible light response and forceful transfer of carriers. Meanwhile, the Type-II charge transfer mechanism was evidenced by the result of radical trapping test. As a complement, this work offers new insights for establishing efficient and stable In₂S₃-based composite photocatalysts.

硫化铟（In ₂ S ₃）已被证明是具有巨大潜力的光催化剂，但是其光催化活性仍然受到电荷分离缓慢等缺点的严重限制。在此，通过水热法容易地制备了一系列具有II型In ₂ S ₃ /钼酸铋（Bi ₂ MoO ₆）异质结构的新型光催化剂。在90分钟的可见光照射下，与纯In ₂ S ₃相比，所有In ₂ S ₃ / Bi ₂ MoO ₆异质结构均表现出对罗丹明B（RhB）降解更出色的活性。和低催化剂剂量（0.2 g / L）的Bi ₂ MoO ₆。特别是，IB-2表现出最高的降解效率（88.2％）和最快的降解速度（k = 0.02826 min ^-1），其k值比In ₂ S ₃和Bi _2的k值分别高近2.48和6.51倍。MoO ₆， 分别。更重要的是，经过4个循环后，去除效率仍高于81.4％。增强的光催化活性归因于活性位点的增加，可见光响应的扩展和载体的强制转移。同时，自由基捕获测试的结果证明了II型电荷转移机制。作为补充，这项工作为建立高效，稳定的基于₂ S ₃的复合光催化剂提供了新的见识。