A Dissolution-Regeneration Route to Synthesize Blue Tungsten Oxide Flowers and their Applications in Photocatalysis and Gas Sensing

Xiang Ning Song; Chu Ya I. Wang; Wei Kang Wang; Xing Zhang; Nan Nan Hou; Han Qing Yu

doi:10.1002/admi.201500417

A Dissolution-Regeneration Route to Synthesize Blue Tungsten Oxide Flowers and their Applications in Photocatalysis and Gas Sensing

Xiang Ning Song, Chu Ya I. Wang, Wei Kang Wang, Xing Zhang, Nan Nan Hou, Han Qing Yu

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

40 Scopus citations

Abstract

Tungsten oxide (WO₃) has unique physicochemical properties. Although various synthetic methods have been proposed to fabricate tungsten oxide with different morphologies, methods of tailoring the tungsten oxide nanostructure toward new morphologies are still needed. In this work, a self-assembled WO₃·0.33H₂O nanoflower is synthesized using a dissolution and regeneration method. In such a two-step synthetic process, temperature, solvent, and reaction times are found to be the main parameters affecting the morphology of WO₃·0.33H₂O. The synthesized WO₃·0.33H₂O nanoflower exhibits a localized surface plasmon resonance effect and a high photocatalytic activity, which can be explained by the doping of W⁵⁺ and its morphology. Furthermore, this WO₃·0.33H₂O nanoflower can also be used as a gas sensor and has good selectivity and linearity towards acetone vapor in the range of 50-500 ppm.

Original language	English
Article number	1500417
Journal	Advanced Materials Interfaces
Volume	3
Issue number	1
DOIs	https://doi.org/10.1002/admi.201500417
State	Published - 7 Jan 2016
Externally published	Yes

Keywords

gas sensing
nanoflowers
photocatalysis
tungsten oxide

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10.1002/admi.201500417

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title = "A Dissolution-Regeneration Route to Synthesize Blue Tungsten Oxide Flowers and their Applications in Photocatalysis and Gas Sensing",

abstract = "Tungsten oxide (WO3) has unique physicochemical properties. Although various synthetic methods have been proposed to fabricate tungsten oxide with different morphologies, methods of tailoring the tungsten oxide nanostructure toward new morphologies are still needed. In this work, a self-assembled WO3·0.33H2O nanoflower is synthesized using a dissolution and regeneration method. In such a two-step synthetic process, temperature, solvent, and reaction times are found to be the main parameters affecting the morphology of WO3·0.33H2O. The synthesized WO3·0.33H2O nanoflower exhibits a localized surface plasmon resonance effect and a high photocatalytic activity, which can be explained by the doping of W5+ and its morphology. Furthermore, this WO3·0.33H2O nanoflower can also be used as a gas sensor and has good selectivity and linearity towards acetone vapor in the range of 50-500 ppm.",

keywords = "gas sensing, nanoflowers, photocatalysis, tungsten oxide",

author = "Song, \{Xiang Ning\} and Wang, \{Chu Ya I.\} and Wang, \{Wei Kang\} and Xing Zhang and Hou, \{Nan Nan\} and Yu, \{Han Qing\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

month = jan,

day = "7",

doi = "10.1002/admi.201500417",

language = "英语",

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T1 - A Dissolution-Regeneration Route to Synthesize Blue Tungsten Oxide Flowers and their Applications in Photocatalysis and Gas Sensing

AU - Song, Xiang Ning

AU - Wang, Chu Ya I.

AU - Wang, Wei Kang

AU - Zhang, Xing

AU - Hou, Nan Nan

AU - Yu, Han Qing

PY - 2016/1/7

Y1 - 2016/1/7

N2 - Tungsten oxide (WO3) has unique physicochemical properties. Although various synthetic methods have been proposed to fabricate tungsten oxide with different morphologies, methods of tailoring the tungsten oxide nanostructure toward new morphologies are still needed. In this work, a self-assembled WO3·0.33H2O nanoflower is synthesized using a dissolution and regeneration method. In such a two-step synthetic process, temperature, solvent, and reaction times are found to be the main parameters affecting the morphology of WO3·0.33H2O. The synthesized WO3·0.33H2O nanoflower exhibits a localized surface plasmon resonance effect and a high photocatalytic activity, which can be explained by the doping of W5+ and its morphology. Furthermore, this WO3·0.33H2O nanoflower can also be used as a gas sensor and has good selectivity and linearity towards acetone vapor in the range of 50-500 ppm.

AB - Tungsten oxide (WO3) has unique physicochemical properties. Although various synthetic methods have been proposed to fabricate tungsten oxide with different morphologies, methods of tailoring the tungsten oxide nanostructure toward new morphologies are still needed. In this work, a self-assembled WO3·0.33H2O nanoflower is synthesized using a dissolution and regeneration method. In such a two-step synthetic process, temperature, solvent, and reaction times are found to be the main parameters affecting the morphology of WO3·0.33H2O. The synthesized WO3·0.33H2O nanoflower exhibits a localized surface plasmon resonance effect and a high photocatalytic activity, which can be explained by the doping of W5+ and its morphology. Furthermore, this WO3·0.33H2O nanoflower can also be used as a gas sensor and has good selectivity and linearity towards acetone vapor in the range of 50-500 ppm.

KW - gas sensing

KW - nanoflowers

KW - photocatalysis

KW - tungsten oxide

UR - https://www.scopus.com/pages/publications/84952861425

U2 - 10.1002/admi.201500417

DO - 10.1002/admi.201500417

M3 - 文章

AN - SCOPUS:84952861425

SN - 2196-7350

VL - 3

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

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ER -

A Dissolution-Regeneration Route to Synthesize Blue Tungsten Oxide Flowers and their Applications in Photocatalysis and Gas Sensing

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Keywords

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