Fabrication of 2D heterojunction photocatalyst Co-g-C₃N₄/MoS₂ with enhanced solar-light-driven photocatalytic activity

Abstract

Co-Doping and formation of a 2D heterojunction with MoS2 can significantly boost the photocatalytic activity of g-C3N4.

Atomic-Scale Pd on 2D Titania Sheets for Selective Oxidation of Methane to Methanol

“…In the EIS Nyquist spectra (Figure S13a), the impedance of Pd 1 /2DT was much lower than that of Pd Ps /2DT and Pd 1 /P25-600H materials. This result indicates that the presence of atomic-scale Pd 1 remarkably improves the charge transportation for the Pd 1 /2DT material, , which is consistent with the PL test (Figure b). Notably, the intrinsic charge carrier density is reciprocal with the slope of the linear part in the Mott–Schottky plot. − In Figure S13b, the Mott–Schottky plots reveal that the slope of Pd 1 /2DT is smaller than that of Pd Ps /2DT and Pd 1 /P25-600H materials based on the fitted dashed lines, suggesting a higher charge carrier density for Pd 1 /2DT.…”

Graphitic Carbon Nitride: Preparation, Properties and Applications in Energy Storage

“…[80] Combining doped g-C 3 N 4 with other photocatalyst can further promote their photocatalytic activity. Chen et al [81] prepared a novel photocatalyst of Co-g-C 3 N 4 /MoS 2 by coupling Co-doped g-C 3 N 4 and MoS 2 nanosheets. The photocatalytic activity of the catalyst was better than g-C 3 N 4 /MoS 2 and Co-g-C 3 N 4 , which was mainly due to the formation of a 2D heterojunction, promoted charge carrier transport, suppressed recombination of charge carriers, and increased light absorption.…”

“…The photocatalytic activity of the catalyst was better than g-C 3 N 4 /MoS 2 and Co-g-C 3 N 4 , which was mainly due to the formation of a 2D heterojunction, promoted charge carrier transport, suppressed recombination of charge carriers, and increased light absorption. [81]…”

Bimetallic zeolite-imidazole framework-based heterostructure with enhanced photocatalytic hydrogen production activity

“…9,23,41 Consequently, a large number of cocatalysts were fabricated, and one of the most extensively investigated cocatalyst is MoS 2 . 9,[42][43][44][45] Due to the different work function of MoS 2 compared with the semiconductor components, and its low hydrogen evolution reaction (HER) overpotential, the photo-exited electrons and holes in g-C 3 N 4 -MoS 2 2D-2D surface heterostructure could be transformed into different semiconductor components with high utilization efficiency. Therefore g-C 3 N 4 -MoS 2 heterostructure was adopted to incorporate on ZIFs-based heterostructure that not only resolved the problems of low porosity, but also improved the separation and utilization of the photo-generated charge carriers between g-C 3 N 4 -MoS 2 -ZnM-ZIF.…”