Oxygen doping and interface engineering in O-MoS2&rGO heterostructure for efficient piezocatalytic dye degradation
Source abstract
Abstract
To further apply MoS2as a promising non-noble catalyst for addressing environmental issues, its catalytic ability must be improved. As a result of the hetero-atom doping effect and varied structure phase of MoS2, we demonstrated excellent piezocatalysis for the degradation of methylene blue (MB) dye under stirring/ultrasonic catalyzed by MoS2. Compared with pristine MoS2and O-doping MoS2(O-MoS2), O-MoS2& reduced graphene oxide (O-MoS2&rGO) exhibits enhanced piezocatalytic activity. When the initial concentration of MB solution is ≤ 15 mg L−1, both stirring and ultrasonication can make the optimal O-MoS2&rGO composite to degrade the dye completely within 20 min. The experimental results have led to the proposal of a mechanism that elucidates the enhancement effect of rGO and O doping on the piezocatalytic performance of MoS2. This study highlights the significance of constructing heterostructure interfaces and the impact of hetero-atom doping on the promotion of piezocatalysis efficiency.Graphical abstractBoosting the catalytic ability of MoS2is vital to its further application as a class of promising non-noble catalysts to address environmental issues. Benefiting from the O-doping-induced electronic effect and interfacial coupling and synergistic effect between MoS2and reduced graphene oxide (rGO), the as-prepared O-MoS2&rGO heterogeneous catalyst exhibits enhanced degradation efficiency for methylene blue (MB) dye.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Advanced Memory and Neural Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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