Insight into the effect of co-doped to the photocatalytic performance and electronic structure of g-C3N4 by first principle

Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review

“…Phenolic compounds, such as phenol, bisphenol A (BPA), p-nitrophenol (PNP) and pentachlorophenol (PCP), are one common type of prevalent organic contaminants that are mainly generated from organic synthesis, paper and plastic manufacturing as well as agricultural activities (Yu et al 2017;Lisowski et al 2017;Peng et al 2016;Zhang et al 2018a;Cho et al 2017;Michałowicz and Duda 2007;Niu et al 2018;Vlastos et al 2016). Chemical intermediates, such as 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid (H acid) (Li et al 2017a), diethyl phthalate (DEP) (Abdul et al 2017), as well as 2-mercaptobenzothiazole (MBT) (Zhu et al 2019), are commonly used chemical agents for the production of dyestuff and pesticides. Both of these organic compounds contain aromatic and heteroaromatic molecular structures.…”

Ultrathin Mesoporous Carbon Nitride Nanosheets Prepared Through a One‐Pot Approach towards Enhanced Photocatalytic Activity

“…Recently, graphitic carbon nitride (g-C 3 N 4 ) have been stimulated keen research interest in the photocatalytic degradation of pollutants, photocatalytic hydrogen production, carbon dioxide reduction, and disinfection because of its unique 2D layered structure, excellent chemical stability, and tunable electronic structure. [24][25][26][27] Nevertheless, the photocatalytic activity of pure g-C 3 N 4 is far from satisfaction, which is mainly due to the low-specific surface area and the rapid recombination of photogenerated electron-hole pairs. [28][29][30][31] In the context, various methods are proposed to enhance the photocatalytic performance of g-C 3 N 4 containing increasing specific surface area, morphology control, element doping, heterostructure construction, etc.…”

A Ag nanoparticle functionalized Sg-C3N4/Bi2O3 2D nanohybrid: a promising visible light harnessing photocatalyst towards degradation of rhodamine B and tetracycline

“…Among the various structural modication methods, doping with metals (e.g., Fe, Co, K, and Cu) [25][26][27][28] or non-metals (e.g., B, C, S, P and Br) [29][30][31][32][33] can not only alter the electronic structure of g-C 3 N 4 but also increase the defect structures as well as the surface active sites and hence improves the catalytic activity dramatically. In particular, it is reported that when g-C 3 N 4 is doped with S, a new electron occupied energy level is formed slightly above the VB of pristine g-C 3 N 4 due to the interaction of 3P states of S and 2P states of N which results in narrowing of the band gap and hence an increase in its visible light absorption capacity.…”