Hezam, A. and Namratha, K. and Ponnamma, D. and Drmosh, Q. A. and Saeed, A. M. N. and Cheng, C. and Byrappa, K. (2018) Direct z-scheme cs2o-bi2o3-zno heterostructures as efficient sunlight-driven photocatalysts. ACS Omega, 3 (9). pp. 12260-12269.
Full text not available from this repository. (Request a copy)Abstract
Limited light absorption, inefficient electron-hole separation, and unsuitable positions of conduction band bottom and/or valence band top are three major critical issues associated with high-efficiency photocatalytic water treatment. An attempt has been carried out here to address these issues through the synthesis of direct Z-scheme Cs2O-Bi2O3-ZnO heterostructures via a facile, fast, and economic method: solution combustions synthesis. The photocatalytic performances are examined by the 4-chlorophenol degradation test under simulated sunlight irradiation. UV-vis diffuse reflectance spectroscopy analysis, electrochemical impedance test, and the observed transient photocurrent responses prove not only the significant role of Cs2O in extending light absorption to visible and near-infrared regions but also its involvement in charge carrier separation. Radical-trapping experiments verify the direct Z-scheme approach followed by the charge carriers in heterostructured Cs2O-Bi2O3-ZnO photocatalysts. The Z-scheme charge carrier pathway induced by the presence of Cs2O has emerged as the reason behind the efficient charge carrier separation and high photocatalytic activity. Copyright © 2018 American Chemical Society.
| Item Type: | Article |
|---|---|
| Subjects: | D Physical Science > Material Science |
| Divisions: | Department of > Material Science |
| Depositing User: | Manjula P Library Assistant |
| Date Deposited: | 08 Jan 2021 07:40 |
| Last Modified: | 08 Jan 2021 07:40 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/15358 |
Actions (login required)
 |
View Item |
