Article ID Journal Published Year Pages File Type
1652079 Materials Letters 2007 5 Pages PDF
Abstract

Doped dandelion-like TiO2 microspheres assembled nanorods were synthesized from rutile powders using either urea or thiourea leading to N- or S-doped TiO2. The rutile particles reacted in concentrated NaOH and urea (or thiourea) solution under hydrothermal conditions (200 °C for 24 h), yielding N- and S-doped TiO2 nanodandelions with diameters ranging from 0.7 to 1.3 μm. SEM, HRTEM, X-ray diffraction (XRD) and IR spectra were used to characterize the synthesis of powders. The results show that concentrated urea (or thiourea) and NaOH are used as additives that help in the construction of the dandelion-like structures. The fabricated nanostructures exhibit high photocatalytic activity in the photodegradation of aqueous Methylene Blue solution.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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