Miao CAI, Zihang CHEN, Shi ZENG, Jianghui DU, Juan XIONG. CuS Nanosheet Decorated Bi5O7I Composite for the Enhanced Photocatalytic Reduction Activity of Aqueous Cr(VI) [J]. Journal of Inorganic Materials, 2021, 36(6): 665
- Journal of Inorganic Materials
- Vol. 36, Issue 6, 665 (2021)
1. XRD patterns of Bi5O7I, CuS, and CuS/Bi5O7I composites
2. SEM images of (a) pure Bi5O7I, (b) CB-10, (c) CB-15 and (d) CB-20 composites
3. (a) TEM and (b) HRTEM images of CB-15 composite
4. (a) XPS survey spectrum and high resolution XPS spectra of (b) Bi4f, (c) I3d, (d) O1s, (e) Cu2p, and (f) S2s of CB-15 composite
5. (a) UV-Vis diffuse reflectance spectra of Bi5O7I, CuS and CuS/Bi5O7I composites, (b) plots of (αhv )1/2vs hv of Bi5O7I and CuS, CuS/Bi5O7I composites and (c) N2 adsorption and desorption isotherms for pure Bi5O7I and CB-15 composite
6. (a) PL spectra and (b) electrochemical impedance spectra of Bi5O7I and CB-15 composite
7. (a) Photocatalytic efficiency, (b) corresponding kinetic curves for the photocatalytic reduction of aqueous Cr(VI) with Bi5O7I and CuS/Bi5O7I composites (experimental conditions: 150 mL of 10 mg/L Cr(IV) solution, 100 mg of catalyst)
8. Schematic diagram of proposed mechanism for photocatalytic reduction of Cr(VI) for CuS/Bi5O7I composite under visible light illumination
Scheme 1. Preparation process diagram of CuS/Bi5O7I composites
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