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Preparation of Hollow Anatase TiO<sub>2</sub> Nanospheres via Ostwald Ripening

The Journal of Physical Chemistry B · 2004 · Vol. 108(11) · pp. 3492–3495

Hua Gui Yang(National University of Singapore)Hua Chun Zeng✉(National University of Singapore)

Abstract

In this work, we report a simple "one pot" approach to prepare hollow anatase TiO<sub>2</sub> nanospheres via Ostwald ripening under hydrothermal conditions. Inner nanospace and highly organized crystallites in the shell structure and surface regions can be created with a wide range of controlling parameters. The formation mechanism has been investigated with TEM/ED/SEM/EDX/XRD/XPS methods. The approach shows a high versatility for structural engineering of various targeted morphological products, including inner material refills.

Copper-based nanomaterials and applications Quantum Dots Synthesis And Properties Electronic and Structural Properties of OxidesOstwald ripeningAnataseHydrothermal circulationCrystalliteMaterials scienceChemical engineeringNanotechnologyX-ray photoelectron spectroscopyChemistryMetallurgy

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