| Title: | Constructing Solid-Gas-Interfacial Fenton Reaction over Alkalinized-C(3)N(4) Photocatalyst To Achieve Apparent Quantum Yield of 49% at 420 nm |
| Author(s): | Li Y; Ouyang S; Xu H; Wang X; Bi Y; Zhang Y; Ye J; |
| Address: | "TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University , Tianjin 300072, PR China. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, PR China. Key Lab of Advanced Ceramics and Machining Technology, Ministry of Education , Tianjin 300072, PR China. State Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics , CAS, Lanzhou 730000, PR China. International Center for Materials Nanoarchitectonics (WPI-MANA) and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS) , Tsukuba 305-0047, Japan" |
| ISSN/ISBN: | 1520-5126 (Electronic) 0002-7863 (Linking) |
| Abstract: | "Efficient generation of active oxygen-related radicals plays an essential role in boosting advanced oxidation process. To promote photocatalytic oxidation for gaseous pollutant over g-C(3)N(4), a solid-gas interfacial Fenton reaction is coupled into alkalinized g-C(3)N(4)-based photocatalyst to effectively convert photocatalytic generation of H(2)O(2) into oxygen-related radicals. This system includes light energy as power, alkalinized g-C(3)N(4)-based photocatalyst as an in situ and robust H(2)O(2) generator, and surface-decorated Fe(3+) as a trigger of H(2)O(2) conversion, which attains highly efficient and universal activity for photodegradation of volatile organic compounds (VOCs). Taking the photooxidation of isopropanol as model reaction, this system achieves a photoactivity of 2-3 orders of magnitude higher than that of pristine g-C(3)N(4), which corresponds to a high apparent quantum yield of 49% at around 420 nm. In-situ electron spin resonance (ESR) spectroscopy and sacrificial-reagent incorporated photocatalytic characterizations indicate that the notable photoactivity promotion could be ascribed to the collaboration between photocarriers (electrons and holes) and Fenton process to produce abundant and reactive oxygen-related radicals. The strategy of coupling solid-gas interfacial Fenton process into semiconductor-based photocatalysis provides a facile and promising solution to the remediation of air pollution via solar energy" |
| Notes: | "PubMed-not-MEDLINELi, Yunxiang Ouyang, Shuxin Xu, Hua Wang, Xin Bi, Yingpu Zhang, Yuanfang Ye, Jinhua eng 2016/09/20 J Am Chem Soc. 2016 Oct 12; 138(40):13289-13297. doi: 10.1021/jacs.6b07272. Epub 2016 Oct 3" |
