A study of the competitive adsorption of pyridine and monosubstituted pyridines on a silver electrode by the SERS method |
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| Affiliation: | 1. Benha University, Faculty of Science, Chemistry Dept., Benha, Egypt;2. Chemistry Department, College of Science, Al-Imam Muhammad Ibn Saud lslamic University, Riyadh, Saudi Arabia;3. Department of Chemistry, College of Science and Arts, Aljouf University, P.O. Box 75911, Alqurayat, Saudi Arabia;1. Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, P. O. Box 98135-674, Zahedan, Iran;2. Department of Chemistry, Yasouj University, Yasouj, Iran;3. Department of Chemistry, Imam Hossein University, Tehran, Iran;1. Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China;2. Ningbo Entry–Exit Inspection and Quarantine Bureau of P.R.C., Ningbo 315012, China;1. Coherent Light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun 130012, PR China;2. Dept. of Stomatology, China-Japan Union Hospital, Changchun 130031, PR China;3. The Second Hospital of Jilin University, Changchun 130041, PR China |
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| Abstract: | The dependency of the SERS intensity on the concentration of pyridine and various monosubstituted stituted pyridines at competitive adsorption on a silver electrode was investigated by varying the concentration of bulk pyridine and monosubstituted pyridines. This co-adsorption behavior was found to be well approximated by Langmuir isotherms for binary systems, and the substituents of 2-substituted-pyridine strongly inhibited the adsorption due to their steric hindrance. |
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