pH-Controllable regeneration and visible-light photocatalytic redox of carbon and nitrogen co-doped Zn₃Nb₂O₈ towards degradation of multiple contaminants

Abstract

N/C–Zn3Nb2O8 with a compatible band structure and negative surface demonstrates enhanced visible light photocatalytic activity and stability in degradation of multiple pH-sensitive contaminants.

Molecular Self-Assembly of Oxygen Deep-Doped Ultrathin C3N4 with a Built-In Electric Field for Efficient Photocatalytic H2 Evolution

“…Electronic band structures of the C 3 N 4 -based catalysts can be regulated by its morphology and doping . As shown in Figure , optical absorption spectra and Mott–Schottky plots were used to explore the band structures of four C 3 N 4 catalysts.…”

“…It proves that the deep-doping of oxygen can improve the Electronic band structures of the C 3 N 4 -based catalysts can be regulated by its morphology and doping. 59 As shown in Figure 5, optical absorption spectra and Mott−Schottky plots were used to explore the band structures of four C 3 N 4 catalysts. Compared to the UV−vis absorption edge of BCN (466 nm), the absorption edges of UCN, O-UCN, and Od-UCN are redshifted to 486, 502, and 494 nm, respectively, as seen in Figure 5a.…”

AgBr nanoparticle surface modified SnO2 enhanced visible light catalytic performance: characterization, mechanism and kinetics study

“…Under neutral conditions, the surface of SnO 2 -AgBr is electronegative, which is theoretically more conducive to attracting cationic MB, and has an electrostatic repulsive effect on anionic MO. 49,50 Electrochemical impedance spectroscopy (EIS) analysis was carried out to determine the electron transport properties of SnO 2 -AgBr that eventually inuenced the performance of SnO 2 -AgBr. It can be seen from Fig.…”

“…Under neutral conditions, the surface of SnO 2 –AgBr is electronegative, which is theoretically more conducive to attracting cationic MB, and has an electrostatic repulsive effect on anionic MO. 49,50…”

Nanomaterials Based on Collaboration with Multiple Partners: Zn3Nb2O8 Doped with Eu3+ and/or Amino Substituted Porphyrin Incorporated in Silica Matrices for the Discoloration of Methyl Red

“…For the obtained materials, the UV-Vis diffuse reflectance spectra revealed that Zn3Ta2O8 exhibited band gaps of 4.5 eV [18]. From the electronic band structure calculations using the DFT method, it was found that the valence band was constructed by the hybridization of Zn 3d and O 2p orbitals, whereas the conduction band consisted of Ta 5d (Zn3Ta2O8) orbitals [19,20].…”