Related Experiment Video
Updated: May 1, 2026

Photopatterning Proteins and Cells in Aqueous Environment Using TiO2 Photocatalysis
Published on: October 26, 2015
Enhanced sorption and photodegradation of chlorophenol over fluoride-loaded TiO2
1State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.
Abstract:
The presence of NaF in the aqueous suspension of TiO(2) can accelerate the photocatalytic degradation of organic pollutants. However, disposal of such a fluoride-containing wastewater is not allowed by environmental regulation. In the present work, we report on surface modification of TiO(2) with a hardly water soluble salt, fluorite and fluorapatite. The modified catalysts at low loading displayed a higher activity than bare TiO(2) for the sorption and photocatalytic degradation of phenol and 2,4-dichlorophenol in water. A kinetic study using butanol as hydroxyl radical scavenger revealed that the fluoride-modified catalysts produced more hydroxyl radicals than bare TiO(2). Five repeated experiments showed that the fluorapatite-modified TiO(2) was very stable, and could be re-used without significant loss in activity.
More Related Videos
11:47The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
Published on: July 4, 2017
08:30A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation
Published on: October 6, 2022
Related Concept Videos
Factors Affecting Solubility
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Total Internal Reflection Fluorescence Microscopy
Variables Affecting Phosphorescence and Fluorescence