Issue 11, 2014

C–H doped anatase nanospheres with disordered shell and planar defects synthesized by pulsed laser ablation of bulk Ti in tetraethyl orthosilicate

Abstract

C–H doped anatase nanospheres with disorder-engineered surface layers were synthesized by pulsed laser ablation of Ti in tetraethyl orthosilicate and characterized using X-ray/electron diffraction and optical spectroscopy. The anatase (Ant) has (hkl)-specific twinning/faulting/ordering and follows a specific crystallographic relationship with the TiCxOy and β-Ti nuclei both having paracrystalline distribution of defect clusters due to solute trapping. The colloidal suspension containing composite nanocondensates with an amorphous C1−xSix:H shell showed visible absorbance indicating a minimum band gap of ca. 2 eV for potential photocatalytic applications.

Graphical abstract: C–H doped anatase nanospheres with disordered shell and planar defects synthesized by pulsed laser ablation of bulk Ti in tetraethyl orthosilicate

Article information

Article type
Paper
Submitted
28 Oct 2013
Accepted
23 Dec 2013
First published
30 Jan 2014

CrystEngComm, 2014,16, 2220-2229

C–H doped anatase nanospheres with disordered shell and planar defects synthesized by pulsed laser ablation of bulk Ti in tetraethyl orthosilicate

C. Wu, S. Chen and P. Shen, CrystEngComm, 2014, 16, 2220 DOI: 10.1039/C3CE42184H

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