Synthesis of Titanium Dioxide Nanoparticles with Mesoporous Anatase Wall and High Photocatalytic Activity
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- 24 February 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry B
- Vol. 109 (11) , 4947-4952
- https://doi.org/10.1021/jp044771r
Abstract
Mesoporous titanium dioxide nanosized powder with high specific surface area and anatase wall was synthesized via hydrothermal process by using cetyltrimethylammonium bromide (CTAB) as surfactant-directing agent and pore-forming agent. The resulting materials were characterized by XRD, nitrogen adsorption, FESEM, TEM, and FT-IR spectroscopy. The as-synthesized mesoporous TiO2 nanoparticles have mean diameter of 17.6 nm with mean pore size of 2.1 nm. The specific surface area of the as-synthesized mesoporous nanosized TiO2 exceeded 430 m2/g and that of the samples after calcination at 600 °C still have 221.9 m2/g. The mesoporous TiO2 nanoparticles show significant activities on the oxidation of Rhodamine B (RB). The large surface area, small crystalline size, and well-crystallized anatase mesostructure can explain the high photocatalytic activity of mesoporous TiO2 nanoparticles calcined at 400 °C.Keywords
This publication has 32 references indexed in Scilit:
- Synthesis and characterization of mesoporous TiO2 with anatase wallMaterials Letters, 2004
- Fabrication of Titania Tubules with High Surface Area and Well-Developed Mesostructural Walls by Surfactant-Mediated Templating MethodChemistry of Materials, 2003
- Direct Sonochemical Preparation and Characterization of Highly Active Mesoporous TiO2 with a Bicrystalline FrameworkChemistry of Materials, 2002
- Neutral templating route to mesoporous structured TiO2Materials Letters, 2002
- Synthesis and Characterization of Mesostructured Titania-Based Materials through Evaporation-Induced Self-AssemblyChemistry of Materials, 2002
- Synthesis of hexagonally packed porous titanium oxo-phosphateMicroporous and Mesoporous Materials, 2000
- Salt Catalysts Containing Basic Anions and Acidic Cations for the Sol−Gel Process of Titanium Alkoxide: Controlling the Kinetics and Dimensionality of the Resultant Titanium OxideThe Journal of Physical Chemistry B, 1999
- Zirconia-Stabilized 25-Å TiO2 Anatase Crystallites in a Mesoporous StructureChemistry of Materials, 1998
- Environmental Applications of Semiconductor PhotocatalysisChemical Reviews, 1995
- Structures of inorganic polymers in sol-gel processes based on titanium oxidePhysical Review E, 1993