Design of S-scheme 3D nickel molybdate/AgBr nanocomposites: Tuning of the electronic band structure towards efficient interfacial photoinduced charge separation and remarkable photocatalytic activity

Salari, Hadi; Zahiri, Zahra

doi:10.1016/j.jphotochem.2021.113751

Cited by 24 publications

(2 citation statements)

References 48 publications

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“…06-0438). 23 The presence of AgBr and CoMoO4 characteristic peaks in CoMoO4/AgBr XRD pattern, prove the heterostructure construction. The optical behavior of samples were analyzed with DRS technique and results are demonstrated in fig.…”

Section: Electrochemical Analysismentioning

confidence: 81%

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Heterostructural Z-scheme cobalt molybdate/AgBr composite toward for supercapacitors

Shayeh,

Salari

2024

Preprint

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Truncated diamond CoMoO4 for the first time was fabricated by facile template free method. Hydrothermal method was applied for support synthesis and AgBr nanoparticles was loaded by precipitation. All samples were fully characterized by physic-electro-chemical methods include XPS, XRD, EDX, HRTEM, SAED, N2 adsorption-desorption isotherms, DRS, SEM, CV and EIS. Direct Z-scheme heterojunction composite was fabricated and supercapacitive performance of composite was studied for capability to use in charge storage devices. The results show that the composite has good electrochemical conductivity and suitable charge storage capability with high stability during continues charge – discharge cycles. The results demonstrated that the increased performance might be due to the Z-scheme charge transfer mechanism inside the heterojunction, which can moderate the direction of charge migration, boost charge transfer, and maintain the high redox capacity. The Electrochemical studies show that presence of AgBr, increase the electrical conductivity of CoMoO4 electrode. Enhancing the specific capacitance of electrode from 114 for CoMoO4 to 304 F.g− 1 for electrode and increasing the mechanical stability of composite one are some benefits of using AgBr in CoMoO4 system.

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Section: Electrochemical Analysismentioning

confidence: 81%

“…The band gap of AgBr according to our previous works was 2.4 eV. 23 One of the important parameters that is essential for exploring the mechanism of photocatalytic processes is determining the valence band (VB) and conduction band (CB) edges. The VB and CB edges of pristine photocatalysts can be calculated by using equs.…”

Section: Resultsmentioning

confidence: 99%