Intercalation of methylene blue into layered potassium titanoniobate KTiNbO5: characterization and electrochemical investigation |
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| Authors: | Xiaobo Zhang Chao Liu Lin Liu Dongen Zhang Tianlin Zhang Xingyou Xu and Zhiwei Tong |
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| Affiliation: | (1) Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China;(2) Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, People’s Republic of China;(3) SORST, Japan Science and Technology Agency (JST), Kawaguchi Center Building 4-1-8, Kawaguchi-shi Saitama, 332-0012, Japan; |
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| Abstract: | Methylene blue (MB) was intercalated into layered potassium titanoniobate (KTiNbO5) through a guest–guest exchange method by use of the intercalation compound n-C4H9NH3
+–TiNbO5 as a precursor. The MB+/H+–TiNbO5 nanocomposite has been characterized by XRD, SEM, IR, TGA, UV, elemental analysis, and electrochemical cyclic voltammetric
measurements. From the XRD and elemental analysis results, we proposed that the MB+ cations formed a single layer standing vertically to the titanoniobate nanosheets together with H+. The CV curves of the MB+/H+–TiNbO5 nanocomposite thin film exhibited a fine diffusion-controlled redox process, which hints the possibility of being utilized
as an electrode modifying material. |
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