Synergistic effects of holey nanosheet and sulfur-doping on the photocatalytic activity of carbon nitride towards NO removal

Phytic Acid-Bridged Copper on Sulfur-Containing Carbon Nitride for Enhancing Photocatalytic CO2 Reduction to CH3OH

“…Figure a–c shows the TEM images of SCN and it is evident that the obtained sample was a thin lamellar with a porous structure. The size of the nanopores is around tens of nanometers, and the formation of pores is mainly caused by breaking intralayer hydrogen bonds of g-C 3 N 4 due to the substituting of sp 2 -hybridized nitrogen with sulfur atoms. , Figure d–f displays the TEM images of 15%CuPA/SCN, it basically maintains the morphology of SCN and some dark granules appear, which can be speculated to represent the successful introduction of CuPA on the surface of SCN. According to the X-ray energy dispersive (XEDS) mapping in Figure g, it can be clearly observed that P, Cu, O, C, S, and N elements uniformly distribute on the surface of the sample, indicating the accomplishment of anchoring of CuPA onto the surface of SCN under microwave reaction conditions.…”

“…The size of the nanopores is around tens of nanometers, and the formation of pores is mainly caused by breaking intralayer hydrogen bonds of g-C 3 N 4 due to the substituting of sp 2 -hybridized nitrogen with sulfur atoms. 28,29 For the oxidation states of the obtained samples of SCN, CuPA, and 15%CuPA/SCN, XPS was conducted through a PerkinElmer PHI 500C ESCA system. The C 1s spectra are shown in Figure 3a.…”

Materials Design and Development of Photocatalytic NOx Removal Technology

“…This phenomenon is attributed to the elevated electron density and the expansion of the π-conjugated system, which, in turn, promotes the separation of charge carriers. The enhanced separation facilitates an increased abundance of photoelectrons, thereby significantly bolstering the photocatalytic efficiency of the carbon nitrides (Figure 8c) [71]. The Lu research group has successfully achieved the in situ growth of Cs 3 Bi 2 Br 9 lead-free perovskite (CBB) on a three-dimensional flower-like structure of graphitic carbon nitride (CN) [72].…”

“…However, such nano-sized structures increase the band gap of the semiconductor photocatalyst due to quantum confinement effects, resulting in decreased light absorption capability [68][69][70]. In a recent study conducted by the Lv group, sulfur-doped holey carbon nitride nanosheets were synthesized and evaluated as a photocatalyst for the removal of nitrogen oxides (NO) [71]. The incorporation of sulfur (S) into the carbon nitride matrix was found to significantly attenuate the recombination rates of electron-hole pairs, a pivotal factor in augmenting the NO oxidative capabilities of the photocatalyst by facilitating A restricted surface area contributes to inadequate absorption of visible light and rapid rates of charge recombination.…”

Fabrication and characterization of ZnGa1.01Te2.13/g-C3N4 heterojunction with enhanced photocatalytic activity

“…These properties attracted considerable research focusing on this ternary group for their prospective applications in memory and nonlinear optical devices, solar cells, ultra-violet photodetectors, narrow-band optical filters, and Schottky diodes [ [14] , [15] , [16] , [17] ]. On the other hand, graphitic carbon nitride (g-C 3 N 4 , GCN) materials have gained similar research interest for their beneficial properties such as stability, nontoxicity, strong visible-light absorption, narrow bandgap (2.7 eV), and favorable electrical properties [ 7 , [18] , [19] , [20] , [21] , [22] , [23] ]. The ease of synthesis of GCN subsequently favors their applications.…”