Construction of NiCo-LDH/g-C₃N₄ heterojunctions as efficient photocatalysts for enhanced degradation of tetracycline hydrochloride and hydrogen evolution

Abstract

To realize highly efficient utilization of solar energy for solving problems of environmental pollution and energy shortage has attracted increasing attention. Herein, Z-scheme two-dimensional (2D)/2D NiCo-LDH/g-C3N4 (LDH/CN) heterojunction composites were...

Recent Advances in LDH/g-C3N4 Heterojunction Photocatalysts for Organic Pollutant Removal

“…In order to boost photocatalytic efficiency, a comparatively large interlayer spacing can offer larger room for reactant transport and more sites that are active for photosynthesis [71]. Lian and co-workers [72] synthesized a 2D/2D NiCo-LDH/g-C 3 N 4 Z-scheme heterojunction through the solvothermal technique, which displayed improved photocatalytic efficacy under visible light illumination for the breakdown of tetracycline hydrochloride (TC) and the formation of hydrogen (H 2 ). For the NiCo-LDH/g-C 3 N 4 , a Z-scheme mechanism was suggested, demonstrating the heterojunction's twin benefits of strong redox capacity.…”

NiFe-LDH/g-C3N4 binary heterostructures with 2D/2D configuration for highly efficient photocatalytic degradation of antibiotics and hydrogen production

“…After the loss of electrons, EY − returns to the original state of EY and takes part in the next electron-transport reaction cycle. 37 The photogenerated electrons are transferred to the CB of CN. The electrons accumulated in the CB of CN reduce H + to H 2 , and TEOA as a sacrificial agent reacts with h + to generate TEOA + .…”

α-NiS/g-C3N4 Nanocomposites for Photocatalytic Hydrogen Evolution and Degradation of Tetracycline Hydrochloride

“…The flat band potential (V fb ) of g-C 3 N 4 was calculated to be −0.37 V vs. NHE at pH 7 based on the linear potential curves. The bottom of the CB is −0.1 V compared to V fb for n-type semiconductors, and the E CB of g-C 3 N 4 is −0.47 V vs. NHE at pH 7 [48]. The valence band (VB) edge potential was determined to be 2.29 V vs. NHE at pH 7 based on E CB = E VB − E g .…”