Novel g-C3N4/Cu-doped ZrO2 hybrid heterostructures for efficient photocatalytic Cr(VI) photoreduction and electrochemical energy storage applications

Stabilizing High Density Cu Active Sites with ZrO2 Quantum Dots as Chemical Ligand in N‐doped Porous Carbon Nanofibers for Efficient ORR

“…[37,38] The O 1s spectra could be deconvoluted into three peaks at 532, 532.7, and 533.8 eV, which were allocated to oxygen vacancies (O Vac ), oxygen chemical adsorption (O Ads ) in the host lattice, respectively (Figure 3i). [39] The oxygen vacancies were from the defective ZrO lattice and the formation of CuN x groups, which agree with the Raman result. For the C 1s and Zr 3d spectra, the three peaks at 284.8, 286.6, and 288.1 eV corresponded to CC, CO, and NCN, respectively (Figure S9b, Supporting Information), and the peaks at 182.7 and 185.1 eV were ascribed to Zr 3d5/2 and 3d3/2 (Figure S9c, Supporting Information).…”

Construction of Hexagonal Prism-like Defective BiOCL Hierarchitecture for Photocatalytic Degradation of Tetracycline Hydrochloride

“…Furthermore, the fluorescence intensity of 3D-BiOCl in the 350–550 nm bands is substantially weakened compared with that of BiOCl, as seen in Figure 5 c. In general, the PL intensity is dictated by the recombination rate of photo-generated carriers; a weak PL intensity suggests a low recombination rate, implying that the hierarchical structure of 3D-BiOCl facilitates the transit of photo-generated carriers, so as to effectively suppress photo-generated charge recombination [ 58 , 59 , 60 ]. It is generally believed that strong light absorption, high carrier transfer efficiency, and low carrier recombination would result in high photo-generated carrier concentrations in a sample [ 61 , 62 ]. To corroborate this argument, using a typical three-electrode cell, we have compared the transient photocurrent responses of the acquired samples over three on/off cycles.…”

Emerging heterostructured C3N4photocatalysts for photocatalytic environmental pollutant elimination and sterilization

“…Similarly, a Cu-ZrO 2 @g-C 3 N 4 heterostructure was prepared by loading Cu-doped ZrO 2 nanoparticles on the surface of g-C 3 N 4 via a hydrothermal route. 97 An enhanced Cr(VI) photoreduction was achieved due to its wider solar spectrum response range and facilitated charge carrier separation via a type II heterostructure (Fig. 7f and g).…”

“…On account of the above considerations, the construction of heterostructured photocatalysts is deemed an ideal solution. 96–101…”

“…On account of the above considerations, the construction of heterostructured photocatalysts is deemed an ideal solution. [96][97][98][99][100][101] Typically, g-C 3 N 4 /ZnO nanorods were synthesized via a simple hydrothermal route for enhanced photocatalytic reduction of Cr(VI). 96 SEM and TEM images suggested that the g-C 3 N 4 /ZnO nanorods with a diameter of about 50 nm are well dispersed (Fig.…”