Journal ArticleDOI
Infra-red study of the surface properties of rutile. Water and surface hydroxyl species
P. Jackson,G. D. Parfitt +1 more
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In this paper, an infra-red study of the rutile surface has shown that hydroxyl groups and physisorbed water may be removed by thermal activation, and water vapour is readily chemisorbbed at room temperature to produce a reversible surface.Abstract:
An infra-red study of the rutile surface has shown that hydroxyl groups and physisorbed water may be removed by thermal activation, and water vapour is readily chemisorbed at room temperature to produce a reversible surface. A model for the surface based on the (110) plane of rutile has enabled interpretation of the spectra indicating two types of hydroxyl groups represented by bands at 3700 and 3670 cm–1 with the latter being the thermally labile species. The oxide shows strong retention of physically adsorbed water molecules at temperatures up to 300°C.read more
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An HREELS and TPD study of water on TiO2(110): the extent of molecular versus dissociative adsorption
TL;DR: In this article, the interaction of water with the (110) crystal face of TiO2 (rutile) was examined with high resolution electron energy loss spectroscopy (HREELS) and temperature programmed desorption (TPD).
Journal ArticleDOI
An Efficient Photocatalyst Structure: TiO2(B) Nanofibers with a Shell of Anatase Nanocrystals
Dongjiang Yang,Hongwei Liu,Zhanfeng Zheng,Yong Yuan,Jincai Zhao,Eric R. Waclawik,Xuebin Ke,Huaiyong Zhu +7 more
TL;DR: A new efficient photocatalyst structure, a shell of anatase nanocrystals on the fibril core of a single TiO(2)(B) crystal, was obtained via two consecutive partial phase transition processes that exhibited superior photocatalytic activity for degradation of sulforhodamine B under UV light to the nan ofibers of either pure phase alone or mechanical mixtures of the pure phase nanofibers with a similar phase composition.
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Structural Sensitivity in the Dissociation of Water on TiO2 Single-Crystal Surfaces
TL;DR: Henderson et al. as mentioned in this paper used temperature-programmed desorption (TPD) and oxygen isotopic labeling studies to probe the dissociation of water on the (100) and (110) surfaces of TiO2 (rutile).
Journal ArticleDOI
Infrared spectra of surface hydroxyl groups and crystalline structure of oxides
A. A. Tsyganenko,V. N. Filimonov +1 more
TL;DR: In this paper, an interpretation of the infrared spectra of surface hydroxyl groups based on crystal structure considerations has been suggested for a large number of oxides, which can be used for the interpretation of spectra for some other functional groups.
Journal ArticleDOI
Kinetics of aluminum extraction from Ti3AlC2 in hydrofluoric acid
TL;DR: In this paper, the influence of particle size, time and temperature on the kinetics of the selective extraction of Al from the ternary layered transition metal carbide, Ti3AlC2, when powders of the latter are immersed in hydrofluoric acid.