Novel nanosized anatase TiO2 hexagonal prism filled with nanoporous structure

Shengli Zhu; Jing Jiang; Xuebin Zhang; Yanqin Liang; Zhenduo Cui; Xianjin Yang

doi:10.1016/j.matdes.2016.12.017

Novel nanosized anatase TiO₂ hexagonal prism filled with nanoporous structure

Shengli Zhu, Jing Jiang, Xuebin Zhang, Yanqin Liang, Zhenduo Cui, Xianjin Yang

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

In the present work, we demonstrate the synthesis of a novel nanosized TiO₂ with the potential photocatalytic applications. Firstly, the hexagonal prisms were synthesized by dealloying TiCu amorphous alloy in HNO₃ solution containing F⁻ ions. These hexagonal prisms were composed of (NH₄)_0.3TiO_1.1F_2.1 wrapped with anatase TiO₂ shell. After calcination at 550 °C, the hexagonal anatase TiO₂ prisms filled with nanoporous structure were formed. The as-formed materials were characterized by field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV–visible diffuse reflectance spectra (DRS). The formation procedure and mechanism were discussed. The as-formed hexagonal TiO₂ combines the advantages of well-ordered hexagonal prism and nanoporous structure, and then exhibits good photocatalytic properties. The unique nanostructure of hexagonal TiO₂ is expected to benefit as an advanced photocatalyst.

Original language	English
Pages (from-to)	238-245
Number of pages	8
Journal	Materials and Design
Volume	116
DOIs	https://doi.org/10.1016/j.matdes.2016.12.017
Publication status	Published - 2017 Feb 15
Externally published	Yes

Keywords

Dealloying
Hexagonal
Nanoporous
Photocatalysis
Titanium dioxide

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matdes.2016.12.017

Cite this

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title = "Novel nanosized anatase TiO2 hexagonal prism filled with nanoporous structure",

abstract = "In the present work, we demonstrate the synthesis of a novel nanosized TiO2 with the potential photocatalytic applications. Firstly, the hexagonal prisms were synthesized by dealloying TiCu amorphous alloy in HNO3 solution containing F− ions. These hexagonal prisms were composed of (NH4)0.3TiO1.1F2.1 wrapped with anatase TiO2 shell. After calcination at 550 °C, the hexagonal anatase TiO2 prisms filled with nanoporous structure were formed. The as-formed materials were characterized by field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV–visible diffuse reflectance spectra (DRS). The formation procedure and mechanism were discussed. The as-formed hexagonal TiO2 combines the advantages of well-ordered hexagonal prism and nanoporous structure, and then exhibits good photocatalytic properties. The unique nanostructure of hexagonal TiO2 is expected to benefit as an advanced photocatalyst.",

keywords = "Dealloying, Hexagonal, Nanoporous, Photocatalysis, Titanium dioxide",

author = "Shengli Zhu and Jing Jiang and Xuebin Zhang and Yanqin Liang and Zhenduo Cui and Xianjin Yang",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (51172159), Recruitment Program of Global Experts “1000 Talents Plan” of China (WQ20121200052) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (20110032110023). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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AU - Zhu, Shengli

AU - Jiang, Jing

AU - Zhang, Xuebin

AU - Liang, Yanqin

AU - Cui, Zhenduo

AU - Yang, Xianjin

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PY - 2017/2/15

Y1 - 2017/2/15

N2 - In the present work, we demonstrate the synthesis of a novel nanosized TiO2 with the potential photocatalytic applications. Firstly, the hexagonal prisms were synthesized by dealloying TiCu amorphous alloy in HNO3 solution containing F− ions. These hexagonal prisms were composed of (NH4)0.3TiO1.1F2.1 wrapped with anatase TiO2 shell. After calcination at 550 °C, the hexagonal anatase TiO2 prisms filled with nanoporous structure were formed. The as-formed materials were characterized by field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV–visible diffuse reflectance spectra (DRS). The formation procedure and mechanism were discussed. The as-formed hexagonal TiO2 combines the advantages of well-ordered hexagonal prism and nanoporous structure, and then exhibits good photocatalytic properties. The unique nanostructure of hexagonal TiO2 is expected to benefit as an advanced photocatalyst.

AB - In the present work, we demonstrate the synthesis of a novel nanosized TiO2 with the potential photocatalytic applications. Firstly, the hexagonal prisms were synthesized by dealloying TiCu amorphous alloy in HNO3 solution containing F− ions. These hexagonal prisms were composed of (NH4)0.3TiO1.1F2.1 wrapped with anatase TiO2 shell. After calcination at 550 °C, the hexagonal anatase TiO2 prisms filled with nanoporous structure were formed. The as-formed materials were characterized by field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV–visible diffuse reflectance spectra (DRS). The formation procedure and mechanism were discussed. The as-formed hexagonal TiO2 combines the advantages of well-ordered hexagonal prism and nanoporous structure, and then exhibits good photocatalytic properties. The unique nanostructure of hexagonal TiO2 is expected to benefit as an advanced photocatalyst.

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