Template‐Free Fabrication and Enhanced Photocatalytic Activity of Hierarchical Macro‐/Mesoporous Titania
Wuhan University of Technology
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Abstract
Abstract Hierarchical macro‐/mesoporous titania is prepared without the addition of templates or auxiliary additives at room temperature by the simple dropwise addition of tetrabutyl titanate to pure water, and then calcined at various temperatures. The products are characterized by X‐ray diffraction, N 2 ‐adsorption–desorption analysis, scanning electron microscopy, and the corresponding photocatalytic activity is evaluated by measuring the photocatalytic oxidation of acetone in air. The results reveal that hierarchical macro‐/mesoporous structures of titania can spontaneously form by self‐assembly in alkoxide–water solutions in the absence of organic templates or auxiliary additives. The calcination…
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3Topics & keywords
Topics
Keywords
- Photocatalysis
- Calcination
- Materials science
- Mesoporous material
- Chemical engineering
- Titanate
- Alkoxide
- Nanotechnology
UN Sustainable Development Goals
- Clean water and sanitation
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