Facile synthesis of Ag-ZnO core-shell nanostructures with enhanced photocatalytic activity
- Authors
- Kadam, A. N.; Bhopate, D. P.; Kondalkar, V. V.; Majhi, S. M.; Bathula, C. D.; Anh-Vy Tran; Lee, Sang-Wha
- Issue Date
- 25-May-2018
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Ag-ZnO core-shell; Chemical synthesis; MO degradation; Photocatalysis; Reusable
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.61, pp.78 - 86
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 61
- Start Page
- 78
- End Page
- 86
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3760
- DOI
- 10.1016/j.jiec.2017.12.003
- ISSN
- 1226-086X
- Abstract
- Ag-ZnO core-shell nanostructure (CSNS) was prepared via a facile wet chemical approach. Formation was certified by various characterization techniques. The surface plasmon band of Ag-ZnO CSNS was red-shifted. Photoluminescence quenching for Ag-ZnO CSNS was attributed to improved charge separation. Ag-ZnO CSNS exhibited similar to 6 times higher photocatalytic activity than pristine ZnO and similar to 4 times higher than TiO2 (P25). Such enhanced photocatalytic activity was attributed to synergistic effect, more charge separation, and higher surface area. Ag-ZnO CSNS also showed excellent photostability and reusability. Photocatalytic mechanism was discussed based on major reactive oxidative species such as center dot OH and center dot O-2(-). (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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