What is the role of Ni3S2 in the Ni3S2/ZIS composite photocatalyst for hydrogen production and benzyl alcohol oxidation?

Label:chem

Topic
Ni3S2 is an earth-abundant and low-cost nickel-based sulfide with high conductivity and unique structural properties. It has been used as a co-catalyst to enhance the performance of photocatalysts by improving charge separation and providing conductive channels.

From: "Facile Synthesis of Ni3S2/ZnIn2S4 Photocatalysts for Benzyl Alcohol Splitting: A Pathway to Sustainable Hydrogen and Benzaldehyde", Catalysts 2025, 15(9), 830;
Answer
Ni3S2 in the Ni3S2/ZIS composite photocatalyst facilitates charge separation, accelerates reaction dynamics, and decreases the hydrogen reduction overpotential. It enhances the surface electronic structure of ZIS, leading to improved visible-light photocatalytic activity for benzyl alcohol dissociation to produce hydrogen and benzaldehyde. The optimized 3.2% Ni3S2/ZIS composite achieves hydrogen and benzaldehyde production rates of 4.342 mmol g–1h–1 and 4.213 mmol g–1h–1, respectively, which are 1.79 and 1.76 times greater than those of pristine ZIS.
Return to Home Chemical List
Knowledge you may be interested in
How does the Au/CuO NWs catalyst enhance benzyl alcohol electrooxidation coupled with hydrogen evolution? How does the fluorescence of collagen relate to the presence of p-dimethylaminobenzaldehyde-reactive substances in diabetic rat collagen? How does aminoguanidine affect the formation of p-dimethylaminobenzaldehyde-reactive substances in diabetic rat collagen? What is the role of p-dimethylaminobenzaldehyde-reactive substances in the collagen of streptozotocin-diabetic rats? What are the advantages of using the new DMAB method for analyzing cephalosporins? How does the reaction temperature affect the formation of azo adducts with p-dimethylaminobenzaldehyde (DMAB)? What is the significance of using methanol as the diluting solvent for the reaction with p-dimethylaminobenzaldehyde (DMAB)? What role does p-dimethylaminobenzaldehyde (DMAB) play in the spectrophotometric determination of cephalosporins? What is the new spectrophotometric method developed for analyzing cephalosporins, and how does it work? What is the minimum inhibitory concentration (MIC) of the crude extract from Bacillus nakamurai Tie-10 against Klebsiella pneumoniae? What is the significance of benzyl alcohol in photocatalytic reactions What is the role of carbon nanotubes (CNTs) in the CNTs/GCN hybrid photocatalyst? How does the CNTs/GCN hybrid improve the photocatalytic oxidation of benzyl alcohol in a Pickering emulsion system? What is the proposed photocatalytic mechanism for benzyl alcohol oxidation in the Pickering emulsion system? What are the origins and physiological activities of pyrrole-2-carboxaldehydes (Py-2-C)? How are pyrrole-2-carboxaldehydes (Py-2-C) synthesized chemically? What are the physiological activities of pyrrole-2-carboxaldehydes (Py-2-C) derived from fungi? What are the physiological activities of pyrrole-2-carboxaldehydes (Py-2-C) derived from plants? What are the physiological activities of pyrrole-2-carboxaldehydes (Py-2-C) derived from microorganisms?