Congcong CHI, Panpan QU, Chaonan REN, Xin XU, Feifei BAI, Danjie ZHANG. Preparation of SiO2@Ag@SiO2@TiO2 Core-shell Structure and Its Photocatalytic Degradation Property [J]. Journal of Inorganic Materials, 2022, 37(7): 750
- Journal of Inorganic Materials
- Vol. 37, Issue 7, 750 (2022)
1. Schematic diagram for synthesizing SiO2@Ag@SiO2@TiO2 microspheres
2. SEM images of SiO2@Ag microspheres prepared with different AgNO3/SiO2 mass ratios
3. STEM image (a), EDS pattern of selected region (b), TEM image (c), and HRTEM image (d) of SiO2@Ag microspheres
4. SEM images of SiO2@Ag microspheres before (a) and after (b) thermal-treated at 500 ℃
5. SEM images of SiO2@Ag@SiO2 microspheres prepared with different TEOS/SiO2 mass ratios
6. SEM images of SiO2@Ag@TiO2 microspheres with different TBOT/SiO2 mass ratios
7. (a) TEM image, (b) EDS pattern, (c) HRTEM image and corresponding elemental mapping of O, Si, Ag and Ti of SiO2@Ag@SiO2@TiO2 microspheres
8. XRD patterns of different SiO2-based microspheres
9. Nitrogen adsorption-desorption isotherms of different SiO2-based microspheres
10. ln(At /A 0)-t curves of different samples and cyclic tests of MB degradation by SiO2@Ag@SiO2@TiO2 (insert)
11. Transient photocurrent responses (a) and electrochemical impedance spectra (b) of different samples
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Table 1. Pore structure parameters of different microspheres
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