A Comparison Study between ZnO Nanorods and WO₃/ZnO Nanorods in Bromocresol Green Dye Removal

Abstract:

This work studied the photocatalytic performance of ZnO nanorods and WO₃/ZnO nanorods in bromocresol green (BCG). The ZnO nanorods were pre-synthesized via solution precipitation method. Subsequently, the nanorods were kept in sodium tungstate solution for the deposition of WO₃. The present of WO₃ was confirmed by XRD and EDX analysis. ZnO nanorods (64.34%) showed a higher photodegradation efficiency of BCG removal than WO₃/ZnO nanorods (60.03%) under 75 minutes of UV irradiation. This could be attributed to the formation of WO₃/ZnO shell-core nanostructure which limited the generation of holes and hydroxyl free radicals that needed for the photodegradation of BCG dyes.

• Periodical: Solid State Phenomena (Volume 264)
• Pages: 87-90
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.264.87
• Online since: September 2017
• Authors: Yuet Lee Ying*, Swee Yong Pung, Ming Thong Ong, Yuk Fen Pung
• Keywords: BCG Dye, Photocatalytic, Zinc Oxide

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