Abstract
Heterojunction photocatalysts with nanosized interfacial contact possess excellent photocatalytic performance due to special natures such as shortening carriers transfer distance and expanding interfacial contact areas. Herein, the heterostructured interface with nanosized contact areas on Bi2WO6/MoS2/RGO (BMG) is obtained successfully. Bi2WO6 nanocrystals are anchored on MoS2/RGO (MG) substrate in a ternary composite. The confined space effect of MG two-dimensional material restricts the growth of Bi2WO6, which endows a heterojunction with nanosized interfacial contact. This kind of nanoscale heterojunction promotes interfacial carriers transfer and separation, leading to significantly enhanced photocatalytic performance of as-fabricated BMG compared to pure Bi2WO6. The present work provides a new understanding into design and fabrication of a novel heterojunction photocatalyst with nanosized interfacial contact by confined space effect.
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