Synthesis,characterization and application of silver doped graphitic carbon nitride as photocatalyst towards visible light photocatalytic hydrogen evolution |
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| Affiliation: | 1. Center of Excellence for Energy and Environmental Studies, D.C.R. University of Science and Technology, Murthal, 131039, Haryana, India;2. Department of Physics, Government College Ratangarh, Churu, 331022, Rajasthan, India;3. Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110016, India;1. Department of Physics, Mohanlal Sukhadia University, Udaipur, Rajasthan 303001, India;2. Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;3. Department of Chemical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;4. Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India;5. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106, United States;1. Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;2. Department of Physics, School of Engineering and Technology, Central University of Haryana, Mahendergarh 123031, India;3. Department of Physics, Mohanlal Sukhadia University, Udaipur 313001, India;1. College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China;2. The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, 410007, PR China;3. Business School, Hunan University, Changsha, 410082, PR China;1. Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;2. Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India;3. Computer Centre, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;4. Department of Physics, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;5. Department of Botany, University of Rajasthan, Jaipur 203004, India;6. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, California 93106, USA;1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal, 721302, India;2. Department of Physics, National Institute of Technology Durgapur, West Bengal, 713209, India |
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| Abstract: | In this study, the series of silver doped graphitic carbon nitride composites (GCN-Agx) were prepared by varying the amount of silver nitrate added in urea for thermal polymerisation reaction among the two precursors. The characterisation study of GCN-Agx composites so obtained was performed using X-ray diffraction, fourier transform infrared spectroscopy, diffused reflectance spectra and Brunauer–Emmett–Teller analysis to explore the effect of silver doping on the various structural, morphological and optical aspects of pure graphitic carbon nitride (GCN-P). In addition, the GCN-Agx composites were analysed for their photoactivity potential and it was found that silver doping can noticeably enhance the photoactivity potential of GCN-P. The phenomenon of enhanced photoactivity was ascribed to the synergistic effect of silver nanoparticles and GCN-P resulting in the increased ability towards visible light absorption, delayed recombination and better separation of photogenerated charge carriers. The synthesized catalyst could be considered as a potential photocatalyst for environmental and energy applications. |
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| Keywords: | Graphitic carbon nitride Doping Silver Composites Methylene blue Photocatalysis |
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