Amorphous versus crystalline Al2O3nanoparticles: A comparative study in photocatalytic dye degradation
- Title
- Amorphous versus crystalline Al2O3nanoparticles: A comparative study in photocatalytic dye degradation
- Creator
- Christan S.; Lukose M.; Vijayan K.; John R.A.B.; Vijayachamundeeswari S.P.
- Description
- This study focuses on the synthesis of aluminum oxide (Al2O3) nanoparticles and compares their amorphous and crystalline phases, emphasizing their suitability for photocatalytic dye degradation. The as-prepared Al2O3, synthesized using the sol-gel technique, is found to have an amorphous nature, which is later annealed at 1200C to obtain its ? phase of crystalline nature. Despite the widespread applications of aluminum oxide in various fields, the differences between its amorphous and crystalline phases are not well understood. This work bridges this gap by evaluating the amorphous and crystalline phases of Al2O3, particularly for dye degradation. As technologies advance to enhance aluminum-containing photocatalytic materials by doping, composites, and hybrids, understanding the impact of material phase on photocatalytic capabilities becomes crucial. The research comprehensively assesses structural, functional, morphological, optical, and dye degradation characteristics. Remarkably, amorphous Al2O3 demonstrates superior dye degradation efficacy compared with its crystalline counterpart, achieving an enhanced degradation efficiency of 87.2% for rhodamine B, a commonly used azo dye in the printing and textile industries. 2024 Emerald Publishing Limited: All rights reserved.
- Source
- Nanomaterials and Energy, Vol-13, No. 4, pp. 115-123.
- Date
- 2024-01-01
- Publisher
- ICE Publishing
- Subject
- aluminum oxide (Al2O3); amorphous; crystalline phase; nanoparticles; photocatalysts; photocatalytic dye degradation; rhodamine B; sol-gel method
- Coverage
- Christan S., School of Advanced Sciences, Vellore Institute of Technology, Vellore, India; Lukose M., School of Advanced Sciences, Vellore Institute of Technology, Vellore, India; Vijayan K., Centre for Condensed Matter Sciences, National Taiwan University, Taipei, Taiwan; John R.A.B., Department of Physics and Electronics, Christ University, Bangalore, India; Vijayachamundeeswari S.P., School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
- Rights
- Restricted Access
- Relation
- ISSN: 20459831
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Christan S.; Lukose M.; Vijayan K.; John R.A.B.; Vijayachamundeeswari S.P., “Amorphous versus crystalline Al2O3nanoparticles: A comparative study in photocatalytic dye degradation,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/12858.