Preparation of heterostructure g-C3N4/ZnO nanorods for high photocatalytic activity on different pollutants (MB,RhB, Cr(VI) and eosin) |
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| Affiliation: | 1. Chemistry Postgraduate Program (PPGQ), Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), MGT 367 Highway – Km 583, CEP, 39100-000, Diamantina, MG, Brazil;2. Institute of Science and Technology (ICT), Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), MGT 367 Highway – Km 583, CEP, 39100-000, Diamantina, MG, Brazil;3. Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, 13560-970, São Carlos, SP, Brazil;4. Department of Physics, Federal University of São Carlos (UFSCar), 13565-905, São Carlos, SP, Brazil;5. Department of Pharmacy (DEFAR), Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), MGT 367 Highway – Km 583, CEP, 39100-000, Diamantina, MG, Brazil;1. School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China;2. Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu, Sichuan, 610500, PR China;3. Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, 610500, PR China;1. Department of Chemistry, University of Management and Technology, Lahore, Pakistan;2. Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong;3. Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh 11451, Saudi Arabia;4. Department of Oral and Maxillofacial Surgery, College of Dentistry, King Saud University, PO Box-60169, Riyadh 11545, Saudi Arabia;1. P.G. & Research Department of Physics, AVVM Sri Pushpam College (Autonomous), Poondi, Thanjavur, 613 503, Tamil Nadu, India;2. Department of Physics, Sengamala Thayaar Educational Trust Women''s College, Sundarakkottai, Mannargudi-614 016, Tamil Nadu, India;3. Department of Physics, School of Electrical & Electronics Engineering, SASTRA University, Thanjavur, 613401, TamilNadu, India;1. Department of Studies in Physics, University of Mysore, Manasagangothri, Mysuru, 570006, India;2. Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641064, India |
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| Abstract: | The g-C3N4/ZnO nanorods were prepared by simple hydrothermal, grinding and calcination methods. The characterization of g-C3N4/ZnO nanorods was done by different analytical techniques such as SEM, TEM, XRD, XPS, FT-IR and UV–Vis. g-C3N4/ZnO nanorods with heterostructures have been successfully synthesized without changing the structure between the monomers, which broadens the visible light response range and improves several major pollutants in water degradation rate. Photocatalytic studies were done for the degradation of MB, RhB, Cr(VI) and eosin which are almost fully degraded. The experimental results show that the photocatalytic performance of the nanorods is much better than others. The g-C3N4/ZnO photocatalyst has excellent stability and repeated cycle performance. Basing on the results of comprehensive free radical trapping test and ESR tests, it is proposed that the main active substance of the catalyst for degrading dyes is ·02-, and ·OH played significant roles in the degradation process. A good photocatalytic mechanism has been proven. |
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| Keywords: | Heterostructure Nanorods Photocatalysis Organic dyes |
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