Hierarchical MoS2/Bi2MoO6 composites with synergistic effect for enhanced visible photocatalytic activity

Construction of a 2D Graphene‐Like MoS2/C3N4 Heterojunction with Enhanced Visible‐Light Photocatalytic Activity and Photoelectrochemical Activity

“…Firstly,alarge amount of GL-MoS 2 may cover some of the active sites on the surface of the catalyst, thus hindering effective electron transfer from GL-C 3 N 4 .S econd, the visible-light absorption ability of GL-MoS 2 is so strongt hat it might suppress the absorption ability of GL-C 3 N 4 to the detrimento f the photocatalytic degradation efficiency towards organic dyes. [35][36][37] In this scenario, althought he addition of GL-MoS 2 facilitates electron transfer,t he total amount of separated electrons from GL-C 3 N 4 would be suppressed.…”

“…This implies the formation of an interfacial junctionand asynergistic effect. [35][36][37] Furthermore, MoS 2 also shows good lattice matching with GL-C 3 N 4 , [38] which could enhance light harvesting, accelerate the formation of intimate interface contact, and promote photogenerated charges eparationa cross the interfaces. [39] In this work, layered semiconductor GL-MoS 2 has been used in combination with GL-C 3 N 4 to obtain improved photocatalytic activity.T his2 Dm aterial has been used as as ubstitute for noble metalsi ns ynthesizing photocatalysts.…”

“…It has al arge specific surface area, which ensures fast transport of electrons.F or this reason, few-layer MoS 2 has excellent potential applications in nanoelectronics, optoelectronics, supercapacitors, and sensors. Moreover,i th as also received ag reat deal of attention asaco-catalyst in the photocatalytic degradation of pollutants (MoS 2 /Bi 2 MoO 6 , [35] MoS 2 /BiOBr, [36] and MoS 2 / Ag 3 PO 4 [37] ). From theses tudies, it is evident that the introduction of MoS 2 is beneficial forl ight harvesting, electron transfer at interfaces, andc harges eparation in composite materials.…”

Fabrication of TiO2/MoS2@zeolite photocatalyst and its photocatalytic activity for degradation of methyl orange under visible light

“…Compared to the PL intensity of TiO 2 @zeolite, the stronger PL intensity was observed on TiO 2 /MoS 2 @zeolite, which indicated that the coupling of TiO 2 with MoS 2 could increase the recombination of photoelectrons and vacancies. However, from another point of view, as one favorable electrons-donator, the MoS 2 may do more to increase photogenerated electron concentration per unit volume, and moreover, lead to the probability of electron trapped by oxygen increased [41,42]. In other words, the high photocatalytic activity of photocatalyst could be obtained only when the separation rate and capturing electron rate are faster than recombination rate of photoelectrons and vacancies.…”

Construction of TiO2/ZnO Heterostructure for Photocatalytic Application

“…As known, ZnO is an excellent n-type semiconductor exhibiting comparable efficiency for various photocatalytic reactions, which is also have been studied by lots of literatures [6]. But on the other hand, ZnO suffers from intrinsic drawback of photocorrosion, which greatly reduces its photoactivity and photostability [7]. As a meaningful attempt, the research activities have been proliferated to construct the ZnO/TiO 2 nanocomposites to solve these problems [8].…”