Synthesis of ultrafine titania nano-cages by pulsed laser ablation of Ti/Al alloy in ammonium hydroxide

Dameng Wang; Ming Chen; Xiangdong Liu; Xueping Gao

doi:10.3788/COL201513.081404

Journals >Chinese Optics Letters >Volume 13 >Issue 8 >Page 081404 > Article

Chinese Optics Letters
Vol. 13, Issue 8, 081404 (2015)

Synthesis of ultrafine titania nano-cages by pulsed laser ablation of Ti/Al alloy in ammonium hydroxide

Dameng Wang¹, Ming Chen¹, Xiangdong Liu^1、*, and Xueping Gao^2、**

Author Affiliations

¹School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

²School of Materials Science and Engineering, Shandong University, Jinan 250061, China

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DOI: 10.3788/COL201513.081404 Cite this Article Set citation alerts

Dameng Wang, Ming Chen, Xiangdong Liu, Xueping Gao. Synthesis of ultrafine titania nano-cages by pulsed laser ablation of Ti/Al alloy in ammonium hydroxide[J]. Chinese Optics Letters, 2015, 13(8): 081404 Copy Citation Text

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(a) Overall and (b) representative TEM images of hybrid nano-particles synthesized by pulsed laser ablation of a Ti/Al alloy in deionized water; (c) corresponding SAED pattern; (d) EDX spectrum and EDS mappings of the constitute distribution of a spherical-shaped structure.

Fig. 1. (a) Overall and (b) representative TEM images of hybrid nano-particles synthesized by pulsed laser ablation of a Ti/Al alloy in deionized water; (c) corresponding SAED pattern; (d) EDX spectrum and EDS mappings of the constitute distribution of a spherical-shaped structure.

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(a) SEM images of TiO2/Al(OH)3 hybrid nano-composites generated in deionized water; (b) typical SEM images of a hybrid nano-particle obtained by the addition of ammonia to the colloidal solution; (c) EDS pattern of TiO2/Al(OH)3 hybrid nano-composites generated in deionized water; (d) corresponding EDS pattern.

Fig. 2. (a) SEM images of TiO2/Al(OH)3 hybrid nano-composites generated in deionized water; (b) typical SEM images of a hybrid nano-particle obtained by the addition of ammonia to the colloidal solution; (c) EDS pattern of TiO2/Al(OH)3 hybrid nano-composites generated in deionized water; (d) corresponding EDS pattern.

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Fig. 3. Typical TEM images of TiO2 nano-cages fabricated by laser ablation of Ti/Al alloy in liquid, where Vammonia:Vwater is the following: (a) 1∶10; (b) 1∶7; (c) 1∶4; (d) 1∶3; (e) HRTEM image of representative TiO2 nano-cages obtained at an ammonia concentration of 1∶3; (f) diameters and the shell thicknesses of spherical TiO2 nano-cages versus the ammonia concentration.

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Fig. 4. Schematic of the growth diagram of TiO2 porous nano-cages by laser ablation of a Ti/Al alloy in aqueous ammonia.

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