Surface-enhanced Raman scattering of pyridine and benzene in non-aqueous electrochemical systems of alcoholic solvents |
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| Affiliation: | 1. Department of Civil Engineering, Ferdowsi University of Mashhad, Iran;2. Department of Civil Engineering, Faculty of Engineering, Islamic Azad University, Tabriz Branch, Iran;3. Departamento de Ingeniería Industrial, Tecnologico de Monterrey, Puebla, Mexico;4. Department of Civil & Environmental Engineering, The Faculty of Engineering, The University of Auckland, Auckland, 1142, New Zealand;1. Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea;2. Govt. Emerson College affiliated with Bahauddin Zakariya University, Multan, Pakistan;3. National Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab, 140306, India;4. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;5. Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, NSW, Australia;6. Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea;7. Department of Civil Engineering, Balochistan University of Information Technology Engineering and Management Sciences, Quetta, Pakistan;1. International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China;2. International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin, 150090, China;3. IJRC-PTS-NA, Toronto, Canada;4. The Academy of Quality Supervision and Inspection in Heilongjiang Province, Harbin, 150028, China;1. Research Center for Health Sciences, Department of Environmental Health Engineering, Shiraz University of Medical Sciences, Shiraz, Iran;2. Social Determinants of Health Research Center, Department of Environmental Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran;3. Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA;4. Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, USA;5. Research Center for Health Sciences, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;6. Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran;7. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran;8. Department of Occupational Health Engineering, School of Public Health, Shiraz University of Medical Sciences, Shiraz, Iran;1. Department of Psychology, Wayne State University, Detroit, MI, USA;2. Department of Obstetrics & Gynecology, Wayne State University, Detroit, MI, USA;3. Merrill Palmer Skillman Institute for Child & Family Development, Wayne State University, Detroit, MI, USA;4. Center for Urban Responses to Environmental Stressors, Wayne State University, Detroit, MI, USA;1. Department of Business Analytics, Jagannath University, Delhi-NCR, India;2. Cebu Technological University-NEC, City of Naga, Cebu 6037, Philippines;3. Cebu Technological University-Main Campus, Cebu 6000, Philippines |
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| Abstract: | We have studied surface-enhanced Raman scattering from the following non-aqueous electrochemical systems: 0.05 M pyridine/0.1 M LiCl/methanol/Ag electrode, 0.05 M pyridine/0.1 M LiCl/ethanol/Ag electrode, and 0.05 M benzene/0.1 M LiCl/ethanol/Ag electrode. Each SERS band of pyridine is found to show two distinctive steps to reach the maximum peak intensity after the reduction potential is applied, which seems to be related to the formation of adatomic silver particle clusters. SERS spectra of benzene show three bands at 995, 986 and 993 cm−1, the potential dependence of which was studied in detail to confirm chemisorption effects. |
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