title: Hydrothermal synthesis of oxygen functionalized S-P codoped g-C3N4 nanorods with outstanding visible light activity under anoxic conditions.
abstract: Extending the application of photocatalytic oxidation technology to the anoxic removal of organic pollutants that exist under some oxygen-free conditions is attractive but challenging. In this study, oxygen functionalized S-P codoped g-C3N4 nanorods with outstanding visible light activity under anoxic conditions are synthesized using a hydrothermal post-treatment. S and P codoping inhibits the crystal growth of graphitic carbon nitride, enhances the SBET, decreases the band gap energy, and increases the separation efficiency of photogenerated electrons and holes, which increases the anoxic photocatalytic RhB degradation constant by approximately 6.5 times. Oxygen functionalization not only increases the adsorption ability of graphitic carbon nitride but also captures the photogenerated electrons to produce photogenerated holes for RhB degradation under anoxic conditions, leading to a doubling of the RhB degradation constant. This study provides new insight into the design and fabrication of anoxic photocatalysts.
authors.affiliation: School of Chemistry and Materials Sciences, Heilongjiang University, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), Harbin 150080, China. guangw001@163.com.
authors.forename: Shaozheng
authors.initials: S
authors.lastname: Hu
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.forename: Ying
authors.initials: Y
authors.lastname: Xie
authors.forename: Fayun
authors.initials: F
authors.lastname: Li
authors.forename: Zhiping
authors.initials: Z
authors.lastname: Fan
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wang
authors.forename: Yanjuan
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiaoxue
authors.initials: X
authors.lastname: Kang
authors.forename: Guang
authors.initials: G
authors.lastname: Wu
mesh_terms: D002384:Catalysis; D006108:Graphite / Q000737:chemistry; D008027:Light; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D009570:Nitriles / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D010758:Phosphorus / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013455:Sulfur / Q000737:chemistry*
chemical_list: D009570:Nitriles; D012235:Rhodamines; D010758:Phosphorus; C011206:cyanogen; D013455:Sulfur; D006108:Graphite; C029773:rhodamine B; D010100:Oxygen