Synthesis of novel Cd2P2O7/Ag3PO4 photocatalyst with enhanced visible-light photocatalytic performance and the enhancement mechanism |
| |
| Affiliation: | 1. College of Environment and Chemical Engineering & State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China;2. College of Science, Tianjin University of Science & Technology, Tianjin 300457, PR China;1. Department of Physics, Presidency College, Chennai 600005, India;2. Kunthavai Naacchiyaar Govt. Arts College (Women), Thanjavur 613 007, India;1. Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan;2. Department of Chemistry, Hakim Sabzevari University, Sabzevar 96179-76487, Iran;3. Department of Physics, University of Sargodha, Sargodha, Pakistan;1. Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6 – Suchdol, 165 21, Czech Republic;2. Department of Geochemistry, Czech Geological Survey, Geologická 6, Prague 5, 152 00, Czech Republic;1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;2. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, PR China;3. School of Light Industry, Harbin University of Commerce, Harbin 150028, PR China;4. Laboratory for Space Environment and Physical Sciences, Research Center of Basic Space Science, Harbin Institute of Technology, Harbin 150001, PR China;1. Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 917751436, Iran;2. Department of Chemistry, Hakim Sabzevari University, Sabzevar 96179-76487, Iran;3. Department of Chemistry, Tulane University, New Orleans, LA 70118, USA;1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova Street, 38, Moscow 119991, Russia;2. N.P. Ogarev Mordovia State University, Bolshevistskaya Street, 68, Saransk 430005, Russia;3. National University of Science and Technology «MISIS», Leninskiy Prospect, 4, Moscow 119049, Russia |
| |
| Abstract: | Novel Cd2P2O7/Ag3PO4 photocatalysts containing different mass fractions of Cd2P2O7 were synthesized by a hydrothermal method. The photocatalysts were characterized by X-ray diffractometry, transmission electron microscopy, X-ray photoelectron spectroscopy, Electron spin resonance (ESR), Fourier transform infrared spectrometry, ultraviolet–visible absorption spectroscopy and photoluminescence spectroscopy. Photocatalytic activity was decided by the effective separation and low recombination rate of photogenerated electron-hole pairs. During the experiments, the Cd2P2O7/Ag3PO4 composites possessed fierce electron- hole separation capacity. In particular, the 1 wt% Cd2P2O7/Ag3PO4 catalyst displayed higher photocatalytic performance than pure Ag3PO4 under visible-light irradiation (λ>420 nm). The ESR spectrum showed the main active species during the methyl orange degradation were ·OH and ·O2?. |
| |
| Keywords: | Photocatalyst Methyl Orange |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
