Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application

Jing Liu; Zihe Ren; Akram Alfantazi; Edouard Asselin

doi:10.1021/acs.cgd.5b01698

Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application

Jing Liu
, Zihe Ren
, Akram Alfantazi
, Edouard Asselin

Chemical and Petroleum Engineering

The University of British Columbia

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

1 Scopus citations

Abstract

A one-step method is introduced for synthesizing rutile TiO₂ nanorods (TNRs) directly from Ti metal. TNRs are generated by hydrothermally processing a Ti metal disc in H₂SO₄/CuSO₄ solutions at 150 °C. In a 112-day long experiment, different ledgewise growth mechanisms are observed in the early (7-day) and the late (112-day) stages of TNR formation. A unique phenomenon is observed in that the length of the TNRs is a function of processing time and the H₂SO₄/CuSO₄ concentration, whereas the diameter of the TNRs is almost unaffected. It is found that the diameter of these nanorods can only be affected by variation of temperature. A mechanism involving the critical dimension of the (101) growth front is proposed in this paper. In addition, methyl orange degradation efficiency of 90% was achieved when the fabricated TNRs were used as immobilized photocatalysts.

Original language	British English
Pages (from-to)	1583-1590
Number of pages	8
Journal	Crystal Growth and Design
Volume	16
Issue number	3
DOIs	https://doi.org/10.1021/acs.cgd.5b01698
State	Published - 2 Mar 2016

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title = "Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application",

abstract = "A one-step method is introduced for synthesizing rutile TiO2 nanorods (TNRs) directly from Ti metal. TNRs are generated by hydrothermally processing a Ti metal disc in H2SO4/CuSO4 solutions at 150 °C. In a 112-day long experiment, different ledgewise growth mechanisms are observed in the early (7-day) and the late (112-day) stages of TNR formation. A unique phenomenon is observed in that the length of the TNRs is a function of processing time and the H2SO4/CuSO4 concentration, whereas the diameter of the TNRs is almost unaffected. It is found that the diameter of these nanorods can only be affected by variation of temperature. A mechanism involving the critical dimension of the (101) growth front is proposed in this paper. In addition, methyl orange degradation efficiency of 90\% was achieved when the fabricated TNRs were used as immobilized photocatalysts.",

author = "Jing Liu and Zihe Ren and Akram Alfantazi and Edouard Asselin",

note = "Funding Information: The authors gratefully thank Dr. Xin Zhang from the 4D Laboratories, Simon Fraser University for his valuable help in TEM experiments and data analysis; Ms. Zenan Jiang and Dr. P. M. Mooney for their generous help in AFM experiment; financial support was provided by the Natural Sciences and Engineering Research Council of Canada. Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

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doi = "10.1021/acs.cgd.5b01698",

language = "British English",

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T2 - Synthesis, Mechanism, and Application

AU - Liu, Jing

AU - Ren, Zihe

AU - Alfantazi, Akram

AU - Asselin, Edouard

N1 - Funding Information: The authors gratefully thank Dr. Xin Zhang from the 4D Laboratories, Simon Fraser University for his valuable help in TEM experiments and data analysis; Ms. Zenan Jiang and Dr. P. M. Mooney for their generous help in AFM experiment; financial support was provided by the Natural Sciences and Engineering Research Council of Canada. Publisher Copyright: © 2016 American Chemical Society.

PY - 2016/3/2

Y1 - 2016/3/2

N2 - A one-step method is introduced for synthesizing rutile TiO2 nanorods (TNRs) directly from Ti metal. TNRs are generated by hydrothermally processing a Ti metal disc in H2SO4/CuSO4 solutions at 150 °C. In a 112-day long experiment, different ledgewise growth mechanisms are observed in the early (7-day) and the late (112-day) stages of TNR formation. A unique phenomenon is observed in that the length of the TNRs is a function of processing time and the H2SO4/CuSO4 concentration, whereas the diameter of the TNRs is almost unaffected. It is found that the diameter of these nanorods can only be affected by variation of temperature. A mechanism involving the critical dimension of the (101) growth front is proposed in this paper. In addition, methyl orange degradation efficiency of 90% was achieved when the fabricated TNRs were used as immobilized photocatalysts.

AB - A one-step method is introduced for synthesizing rutile TiO2 nanorods (TNRs) directly from Ti metal. TNRs are generated by hydrothermally processing a Ti metal disc in H2SO4/CuSO4 solutions at 150 °C. In a 112-day long experiment, different ledgewise growth mechanisms are observed in the early (7-day) and the late (112-day) stages of TNR formation. A unique phenomenon is observed in that the length of the TNRs is a function of processing time and the H2SO4/CuSO4 concentration, whereas the diameter of the TNRs is almost unaffected. It is found that the diameter of these nanorods can only be affected by variation of temperature. A mechanism involving the critical dimension of the (101) growth front is proposed in this paper. In addition, methyl orange degradation efficiency of 90% was achieved when the fabricated TNRs were used as immobilized photocatalysts.

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EP - 1590

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 3

ER -

Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application

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