Deng-yun GE, Min-min XU, Ya-xian YUAN, Jian-lin YAO. Surface-Enhanced Raman Spectroscopic Investigation on the Effect of Solution pH on Dehydroxylation of Hydroxythiophenol Isomers[J]. Spectroscopy and Spectral Analysis, 2022, 42(7): 2076
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 7, 2076 (2022)
Fig. 1. SERS spectra of MHTP (a) and OHTP (b) pre-adsorbed on a roughened Ag electrode in KCl solution of pH 2, 7 and 12 at OCP
Fig. 2. Potential-dependent SERS spectra of MHTP pre-adsorbed on a roughened Ag electrode in KCl solution of pH 7 (a) and 12 (b)
Fig. 3. (a) SERS spectra of MHTP pre-adsorbed on a roughened Ag electrode in KCl solution of pH 2, 7 and 12 at negative potential; (b) Relative ratio of band intensities at 1 021 cm-1 (TP) to 880 cm-1 (MHTP) at different pH values
Fig. 4. (a) SERS spectra of OHTP pre-adsorbed on a roughened Ag electrode in KCl solution of pH 2, 7 and 12 at negative potential; (b) Relative ratio of band intensities at 991 cm-1 (TP) to 830 cm-1 (OHTP) at different pH values
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