Construction 0D/2D heterojunction by highly dispersed Ni2P QDs loaded on the ultrathin g-C3N4 surface towards superhigh photocatalytic and photoelectric performance

Bimetallic Manganese Cobalt Phosphide Nanodots–Modified Graphitic Carbon Nitride for High‐Performance Hydrogen Production

“…Moreover, the photoluminescence (PL) spectra in Figure a illustrate that the emission intensity of the Mn 0.67 Co 1.33 P/g‐C 3 N 4 ‐5 sample is far lower than that of g‐C 3 N 4 , meaning that Mn 0.67 Co 1.33 P accelerates the charge transfer of g‐C 3 N 4 to suppress the recombination of photo‐induced electron–hole pairs . It is further evidenced by the fluorescence lifetime measurement (Figure b) that the PL lifetime of the Mn 0.67 Co 1.33 P/g‐C 3 N 4 ‐5 sample is much shorter (0.88 ns) compared to that of g‐C 3 N 4 (1.57 ns).…”

“…Until now, a number of methods are reported to improve the photocatalytic H 2 production performance, such as controlling the morphology of g‐C 3 N 4 , loading precious metals, and constructing heterostructures . Especially when active precious metals are used as co‐catalysts, it can provide reactive active sites, extend visible light harvest ability, and improve the separation efficiency of photogenerated charge carriers to significantly enhance the photocatalytic H 2 production performance, which are usually incomparable relative to other methods.…”

Fabrication of 2D/0D Heterojunction Based on the Dual Controls of Micro/Nano‐Morphology and Structure Towards High‐Efficiency Photocatalytic H2 Production

“…[48] However, for N 1s spectrum of up-g-C 3 N 4 /Ni 12 P 5 -3 % sample, it is worth noting that the peak at 400.0 eV displays a shift of 0.3 eV to the high energy direction relative to up-g-C 3 N 4 (399.7 eV), indicating NiÀ N bond states may be formed between Ni in Ni 12 P 5 nanodots and the graphite N in N-C 3 in up-g-C 3 N 4 nanosheets. [33] Furthermore, from Ni 2p XPS spectrum of up-g-C 3 N 4 /Ni 12 P 5 -3 % in Figure 4c, the peaks appeared at 852.9 eV, 856.3 eV and 863.7 eV are assigned to Ni δ + (0 < δ < 2) in Ni 12 P 5 , surface oxidized Ni species and the satellite peak of the Ni 2p 3/2 state, respectively, [49] while the other three peaks at 869.7 eV, 874.0 eV and 880.8 eV are corresponding to Ni δ + (0 < δ < 2) in Ni 12 P 5 , surface oxidized Ni species and the satellite peaks of the Ni 2p 1/2 state, respectively. [49] In addition, the P 2p XPS spectrum of up-g-C 3 N 4 /Ni 12 P 5 -3 % sample in Figure 4d has two distinct peaks at 129.6 eV and 133.2 eV, which come from P in Ni 12 P 5 and phosphates, respectively.…”

“…[29][30][31] Meanwhile, the two-dimensional (2D) ultrathin nanosheet structure usually has more exceptional intrinsic photoabsorption, photoresponse and biocompatible properties with respect to the bulk materials in the photocatalytic reaction process. [32,33] Therefore, if g-C 3 N 4 is endowed with both 2D ultrathin nanosheet and abundant pore structures, the fabricated 2D ultrathin porous g-C 3 N 4 (up-g-C 3 N 4 ) will markedly improve the photocatalytic H 2 production activity. For g-C 3 N 4 , however, it is very important that the selected and designed cocatalysts can serve as both charge separators and active sites by tightly anchoring their on the surface of g-C 3 N 4 .…”

Metal‐Organic Framework Templated Synthesis ofg‐C3N4/Fe2O3@FeP Composites for Enhanced Hydrogen Production

“…To overcome these issues, suitable co‐catalysts have been loaded on g‐C 3 N 4 in an attempt to accelerate the proton reductive reaction. In this sense, metal phosphides including CoP, FeP, Cu 3 P, Ni 2 P, RhP, FeNiP, and NiCoP have been used as co‐catalysts to improve the H 2 production activity of g‐C 3 N 4 . FeP is particularly attractive owing to its good conductivity, high chemical stability, and low cost.…”