Synergistic Photocatalysis of Bayerite/Zeolite Loaded TiO<sub>2</sub> Nanocomposites for Highly Efficient Degradation of Organic Pollutants in Aqueous Environments
Baha, Abdellah Ait, Ait-Karra, Aziz, Idouhli, Rachid, Tabit, Kamal, Zakir, Othmane, Dikici, Burak, Khadiri, Mohy Eddine, Abouelfida, Abdesselam
Methylene blue dye (MB), prevalent in textiles like cotton, wood, and silk, raises environmental and health concerns. This study presents a successful synthesis of a Bayerite/zeolite nanocomposite powder using fumed silica by-product and aluminum nitrate. Hydrothermal exploration of factors, including duration, temperature, and Al/Si ratios, revealed that high temperature (160 degrees C) and short duration (6h) favored optimal crystallization of bayerite/zeolite phases. Subsequently, an integrated photocatalytic adsorbent (IPA) was developed by mechanically mixing the synthesized bayerite/zeolite with TiO2, followed by calcination (500 degrees C, 2 h), demonstrating superior efficiency in MB photodegradation under UV-Vis light. The IPA achieved 100% degradation efficiency for 60 mg/L of MB and maintained good photostability over three cycles. The bayerite/zeolite-supported TiO2 nanocomposite exhibited the generation of positive holes (h +) and active hydroxyl radicals (OH center dot), showcasing its potential as a promising material for wastewater treatment applications.
- Journal
- SILICON
- Year
- 2024
- Volume
- 16
- Issue
- 11
- Pages
- 4843-4856
- ISSN
- 1876-990X
- eISSN
- 1876-9918
- DOI
- 10.1007/s12633-024-03056-y
- WoS UID
- WOS:001243639500001