Nitrogen-rich porous polymeric carbon nitride with enhanced photocatalytic activity for synergistic removal of organic and heavy metal pollutants

Abstract

The development of highly efficient photocatalysts is crucial to realize water remediation via photocatalysis technology. In this work, nitrogen-rich porous polymeric carbon nitride (DCCN-S) was prepared through calcining the intermediate...

Template‐Free Synthesis of Phosphorus‐Doped g‐C3N4 Micro‐Tubes with Hierarchical Core–Shell Structure for High‐Efficient Visible Light Responsive Catalysis

“…According to the Equation (): $$\[ \begin{array}{*{20}{c}}{{E_{{\rm{NHE}}}}{\rm{/}}V = \varphi + E_{{\rm{VB}}}^* - 4.44}\end{array} \]$$where E NHE : normal hydrogen electrode potential ( E VB ); φ: electron work function of the XPS analyzer (4.30 eV); $$E_{{\rm{VB}}}^*$$: the contact potential differences between the photocatalysts and the analyzer obtained from the VB‐XPS spectra (Figure 5c). [ 34 ] The E VB for BCN, TCN, and PHCN3 are estimated to be 1.77, 1.81, and 1.74 eV, respectively. Moreover, the Mott–Schottky plots are also used to estimate the E CB of samples (Figure 5d–f).…”

“…where E NHE : normal hydrogen electrode potential (E VB ); ϕ: electron work function of the XPS analyzer (4.30 eV); VB * E : the contact potential differences between the photocatalysts and the analyzer obtained from the VB-XPS spectra (Figure 5c). [34] The E VB for BCN, TCN, and PHCN3 are estimated to be 1.77, 1.81, and 1.74 eV, respectively. Moreover, the Mott-Schottky plots are also used to estimate the E CB of samples (Figure 5d-f).…”

Ultrathin Crystalline Carbon Nitride Nanosheets for Highly Efficient Photocatalytic Pollutant Removal and Hydrogen Production

“…The photoelectrochemical tests including electrochemical impedance spectra (EIS), Mott–Schottky plots, and transient photocurrent responses were conducted according to our previous work …”

Synchronous removal of antibiotics in sewage effluents by surface-anchored photocatalytic nanofiltration membrane in a continuous dynamic process

“…Every sample exhibited a classical IV (a) isotherm with H 3 -type hysteresis loop, demonstrating that g-C 3 N 4 , NCN, and HNCN-2 possess abundant mesoporous. 37,38 Besides, the modified HNCN-2 significantly increased its pore Environmental Science: Nano Paper volume and specific surface area by 1.99 and 2.32 times that of pure g-C 3 N 4 , respectively (see Table S3 †). It may be caused by the evaporation of the NCQDs aqueous solution during the direct continuous thermal polymerization process, resulting in the formation of pores.…”