Sulfur-doped g-C3N4 with enhanced photocatalytic CO2-reduction performance

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

“…Graphitic carbon nitride (g-C 3 N 4 ), as a metal-free polymeric semiconductor, has shown huge potential in the field of photocatalytic H 2 evolution [1][2][3], CO 2 reduction [4,5], contamination elimination [6,7], and H 2 O 2 synthesis [8][9][10]. With an optical band gap of 2.70 eV, g-C 3 N 4 has shown a response to visible light up to 460 nm.…”

“…It is reported radical (SO 4 •− ), which can immediately destruct organic pollutants to CO 2 and H 2 O. It is generally accepted that SO 4 •− has the potential of becoming an alternative to • OH (1.8-2.7 V vs. normal hydrogen electrode (NHE)) [22]. Compared with • OH, SO 4 •− has a series of merits, such as stronger oxidizing capability (2.5-3.1 V vs. NHE), higher selectivity of oxidation and independence of pH [23].…”

“…The photocatalytic activity of semiconductors could be significantly improved by modifying with noble metal (Ag, Au and Pt), resulting from the surface plasmon resonance (SPR) effect. It is reported radical (SO 4 •− ), which can immediately destruct organic pollutants to CO 2 and H 2 O. It is generally accepted that SO 4 •− has the potential of becoming an alternative to • OH (1.8-2.7 V vs. normal hydrogen electrode (NHE)) [22].…”

“…Compared with • OH, SO 4 •− has a series of merits, such as stronger oxidizing capability (2.5-3.1 V vs. NHE), higher selectivity of oxidation and independence of pH [23]. For example, Gao et al [24] found that the introduction of PS can be activated by photogenerated electrons to generate SO 4 •− , resulting the accelerated photocatalytic degradation of AO7 in the MIL-53(Fe)/PS/vis process. Inspired by these excellent works abovementioned, single-atom dispersed Ag mesoporous g-C 3 N 4 hybrid (Ag/mpg-C 3 N 4 ) was synthesized and applied as a photocatalyst to degrade BPA in the presence of PMS.…”

“…It is generally accepted that SO 4 •− has the potential of becoming an alternative to • OH (1.8-2.7 V vs. normal hydrogen electrode (NHE)) [22]. Compared with • OH, SO 4 •− has a series of merits, such as stronger oxidizing capability (2.5-3.1 V vs. NHE), higher selectivity of oxidation and independence of pH [23]. For example, Gao et al [24] found that the introduction of PS can be activated by photogenerated electrons to generate SO 4 •− , resulting the accelerated photocatalytic degradation of AO7 in the MIL-53(Fe)/PS/vis process.…”